Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US20090075613A1
Filed: 2007-09-19
Issued: 2009-03-19
Patent Holder: (Original Assignee) University of California     (Current Assignee) University of California
Inventor(s): Aminghasem Safarian, Lei Zhou, Payam Heydari

Title: Distributed rf front-end for uwb receivers
[FEATURE ID: 1] television, Databroadband, tunable, video, broadcast, power, radio, tv[FEATURE ID: 1] radio frequency
[FEATURE ID: 2] signal, cable network connector, phase, parallel interfacenetwork, port, channel, transmitter, feed, band, line[FEATURE ID: 2] end circuit, transmission line, signal
[TRANSITIVE ID: 3] comprisingcomprises, compromising, of, having, with, involving, by[TRANSITIVE ID: 3] comprising
[FEATURE ID: 4] input signal, analog amplifier, analog filter, mixerinput, amplifier, oscillator, analog, antenna, interface, isolation[FEATURE ID: 4] RF transmission line, intermediate frequency, noise amplifier
[FEATURE ID: 5] cable network, digital convertersignal, channel, network, device, cell, capacitor, system[FEATURE ID: 5] circuit, transistor
[FEATURE ID: 6] contiguous bandgroup, number, combination, bandwidth, chain, spectrum, stack[FEATURE ID: 6] bank, range, pair
[FEATURE ID: 7] frequencies, demodulatorssignals, devices, amplifiers, drivers, currents, channels, components[FEATURE ID: 7] transistors
[FEATURE ID: 8] wideband analog, MHz channel, channel output, cable broadcast channelfrequency, signal, channel, video, carrier, bandwidth, spectrum[FEATURE ID: 8] local oscillator
[TRANSITIVE ID: 9] comprises, comprisehas, defines, contain, form, provide, represent, including[TRANSITIVE ID: 9] comprises, have
[TRANSITIVE ID: 10] receivedreception, rf, radio, receiving[TRANSITIVE ID: 10] front
[FEATURE ID: 11] serial interface, demodulatortuner, filter, multiplexer, circuit, diode, receiver, transceiver[FEATURE ID: 11] mixer, variable resistance, switch
[FEATURE ID: 12] claimpatent, embodiment, claim of, the claim, claimed, clause, item[FEATURE ID: 12] claim
[FEATURE ID: 13] wideband ADCamplifier, interface, ic, antenna, filter[FEATURE ID: 13] inductor
[FEATURE ID: 14] mixers, filtersswitches, dividers, amplifiers, processors, transmitters, blocks, networks[FEATURE ID: 14] parallel resistors
[FEATURE ID: 15] complex signalquadrature, carrier, corresponding, frequency[FEATURE ID: 15] differential local oscillator
[FEATURE ID: 16] leastonly, minus, lease, last, most[FEATURE ID: 16] least
1 . A method for receiving a television [FEATURE ID: 1]

( TV ) signal [FEATURE ID: 2]

comprising [TRANSITIVE ID: 3]

: receiving an input signal [FEATURE ID: 4]

from a cable network [FEATURE ID: 5]

; digitizing a contiguous band [FEATURE ID: 6]

of frequencies [FEATURE ID: 7]

in the input signal via a wideband analog [FEATURE ID: 8]

- to - digital converter [FEATURE ID: 5]

( ADC ) , wherein the contiguous band of frequencies comprises [TRANSITIVE ID: 9]

all received [TRANSITIVE ID: 10]

channels that exist in the input signal and the received channels comprise [TRANSITIVE ID: 9]

a plurality of desired channels and a plurality of undesired channels ; concurrently selecting each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing the plurality of desired channels via a serial interface [FEATURE ID: 11]

. 2 . The method of claim [FEATURE ID: 12]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 2]

to the wideband ADC [FEATURE ID: 13]

via at least one of an analog amplifier [FEATURE ID: 4]

and an analog filter [FEATURE ID: 4]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 4]

of a plurality of mixers [FEATURE ID: 14]

, a complex signal [FEATURE ID: 15]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase [FEATURE ID: 2]

( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter of a plurality of filters [FEATURE ID: 14]

, the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 8]

. 6 . The method of claim 3 , wherein the method comprises : demodulating , via each demodulator [FEATURE ID: 11]

of a plurality of demodulators [FEATURE ID: 7]

, the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 8]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel , of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 2]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least [FEATURE ID: 16]

one cable broadcast channel [FEATURE ID: 8]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 1]

1 . A radio frequency [FEATURE ID: 1]

( RF ) front [FEATURE ID: 10]

- end circuit [FEATURE ID: 2]

, comprising [TRANSITIVE ID: 3]

: an RF transmission line [FEATURE ID: 4]

; a local oscillator [FEATURE ID: 8]

( LO ) transmission line [FEATURE ID: 2]

; an intermediate frequency [FEATURE ID: 4]

( IF ) transmission line ; and a plurality of composite cells , wherein each composite cell comprises [TRANSITIVE ID: 9]

: a low - noise amplifier [FEATURE ID: 4]

( LNA ) ; and a mixer [FEATURE ID: 11]

coupled to the LNA ; wherein the plurality of composite cells are distributed along the RF , LO and IF transmission lines . 2 . The circuit [FEATURE ID: 5]

of claim [FEATURE ID: 12]

1 , further comprising a variable resistance [FEATURE ID: 11]

coupled to a termination of the RF transmission line . 3 . The circuit of claim 2 , wherein the variable resistance comprises : a bank [FEATURE ID: 6]

of parallel resistors [FEATURE ID: 14]

; and a least [FEATURE ID: 16]

one switch [FEATURE ID: 11]

coupled to at least one of the resistors . 4 . The circuit of claim 2 , wherein the variable resistance is programmable to any one of a plurality of resistances , and wherein one of the plurality of resistances is within a range [FEATURE ID: 6]

of 75 to 150Ω . 5 . The circuit of claim 4 , wherein one of the plurality of resistances is within a range of 100 to 150 Ω . 6 . The circuit of claim 1 , wherein each composite cell comprises an inductor [FEATURE ID: 13]

coupled between the LNA and the mixer in the cell . 7 . The circuit of claim 1 , wherein the RF , LO and IF transmission lines each have [TRANSITIVE ID: 9]

a characteristic impedance of approximately 50 Ω . 8 . The circuit of claim 1 , wherein each mixer comprises a pair [FEATURE ID: 6]

of switching transistors [FEATURE ID: 7]

. 9 . The circuit of claim 8 , wherein each pair of switching transistors is configured to be driven by a differential local oscillator [FEATURE ID: 15]

( LO ) signal [FEATURE ID: 2]

. 10 . The circuit of claim 8 , wherein each switching transistor [FEATURE ID: 5]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US7502589B2
Filed: 2002-12-06
Issued: 2009-03-10
Patent Holder: (Original Assignee) Bose Corp     (Current Assignee) Bose Corp
Inventor(s): Damian Howard, Kenneth S. Yoshioka

Title: Supplemental broadcast data processing
[FEATURE ID: 1] methodtechnique, first method, method of, apparatus, procedure, device, methods[FEATURE ID: 1] method
[TRANSITIVE ID: 2] receiving, digitizing, selecting, providing, demodulatingprocessing, identifying, separating, generating, analyzing, decoding, capturing[TRANSITIVE ID: 2] parsing, characterizing, receiving, comparing, outputting
[FEATURE ID: 3] signal, contiguous band, serial interface, cable network connector, mixer, phase, filterchannel, receiver, tuner, multiplexer, broadcast, transmission, transmitter[FEATURE ID: 3] supplemental data, broadcast station, stream, first broadcast signal, first data source, second program data
[TRANSITIVE ID: 4] comprisingcomprises, compromising, performing, of, having, with, involving[TRANSITIVE ID: 4] comprising
[FEATURE ID: 5] cable network, wideband analog, digital converter, demodulatorchannel, signal, decoder, broadcast, tuner, processor, device[FEATURE ID: 5] program data, duration, user
[TRANSITIVE ID: 6] receivedtransmitted, reception, receives, broadcast, input, receiving[TRANSITIVE ID: 6] received
[FEATURE ID: 7] channels, mixers, filters, demodulatorstransmitters, detectors, receivers, paths, carriers, transformers, devices[FEATURE ID: 7] second data sources
[TRANSITIVE ID: 8] comprisehas, comprising, including, have[TRANSITIVE ID: 8] having
[TRANSITIVE ID: 9] desiredavailable, possible, received, predetermined[TRANSITIVE ID: 9] known
[FEATURE ID: 10] claimclaim of, paragraph, claimed, clause, item, preceding claim, embodiment[FEATURE ID: 10] claim
[FEATURE ID: 11] wideband ADC, parallel interfacereceiver, network, controller, tuner, computer, decoder, display[FEATURE ID: 11] memory
[FEATURE ID: 12] complex signalchannel, composite signal, channel signal, signals[FEATURE ID: 12] broadcast signal
[FEATURE ID: 13] channel output, Datainformation, video, audio, content, data, broadcast, broadcasts[FEATURE ID: 13] text data, supplemental broadcast data, first program data
[FEATURE ID: 14] cable broadcast channelprogram, song, tv, video[FEATURE ID: 14] ARTIST
1 . A method [FEATURE ID: 1]

for receiving [TRANSITIVE ID: 2]

a television ( TV ) signal [FEATURE ID: 3]

comprising [TRANSITIVE ID: 4]

: receiving an input signal from a cable network [FEATURE ID: 5]

; digitizing [TRANSITIVE ID: 2]

a contiguous band [FEATURE ID: 3]

of frequencies in the input signal via a wideband analog [FEATURE ID: 5]

- to - digital converter [FEATURE ID: 5]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 6]

channels [FEATURE ID: 7]

that exist in the input signal and the received channels comprise [TRANSITIVE ID: 8]

a plurality of desired [TRANSITIVE ID: 9]

channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 2]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 2]

the plurality of desired channels via a serial interface [FEATURE ID: 3]

. 2 . The method of claim [FEATURE ID: 10]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 3]

to the wideband ADC [FEATURE ID: 11]

via at least one of an analog amplifier and an analog filter . 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 3]

of a plurality of mixers [FEATURE ID: 7]

, a complex signal [FEATURE ID: 12]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase [FEATURE ID: 3]

( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 3]

of a plurality of filters [FEATURE ID: 7]

, the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel . 6 . The method of claim 3 , wherein the method comprises : demodulating [FEATURE ID: 2]

, via each demodulator [FEATURE ID: 5]

of a plurality of demodulators [FEATURE ID: 7]

, the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 13]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel , of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 11]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 14]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 13]

1 . A method [FEATURE ID: 1]

of parsing [TRANSITIVE ID: 2]

and characterizing [TRANSITIVE ID: 2]

text data [FEATURE ID: 13]

from a broadcast signal [FEATURE ID: 12]

, said broadcast signal having [TRANSITIVE ID: 8]

program data [FEATURE ID: 5]

and supplemental data [FEATURE ID: 3]

associated therewith , comprising [TRANSITIVE ID: 4]

the steps of : receiving [TRANSITIVE ID: 2]

a broadcast signal having supplemental broadcast data [FEATURE ID: 13]

with associated text data ; comparing [TRANSITIVE ID: 2]

said received [TRANSITIVE ID: 6]

text data to at least one known [TRANSITIVE ID: 9]

text string , to distinguish from said text data at least one recognized data string and at least one unrecognized data string , wherein said at least one recognized data string is a match to said at least one known text string ; assigning a characterization to said at least one unrecognized data string to define at least one characterized data string , creating an association in a memory [FEATURE ID: 11]

between said at least one characterized data string and said broadcast signal . wherein , in the step of comparing , said recognized data string is the text string “ UP NEXT ON ” , “ / ” , “ . . . ” , “ ( ” , “ ) ” , “ [ ” , “ ] ” , “ < ” , “ > ” , “ PLAYING SONG ” , “ PLAYING ARTIST [FEATURE ID: 14]

” , “ NOW PLAYING ” , “ - ” , or “ ! ” . 2 . A method of parsing and characterizing text data from a broadcast signal , said broadcast signal having program data and supplemental data associated therewith , comprising the steps of : receiving a broadcast signal having supplemental broadcast data with associated text data ; comparing said received text data to at least one known text string , to distinguish from said text data at least one recognized data string and at least one unrecognized data string , wherein said at least one recognized data string is a match to said at least one known text string ; assigning a characterization to said at least one unrecognized data string to define at least one characterized data string , creating an association in a memory between said at least one characterized data string and said broadcast signal , wherein , in the step of assigning , said characterization indicates the content of the program data , the identity of the broadcast station [FEATURE ID: 3]

, or the duration [FEATURE ID: 5]

of the program data . 3 . The method of claim [FEATURE ID: 10]

2 wherein , in the step of assigning , said characterization is based on the relative position of said unrecognized data string to said recognized data string . 4 . The method of claim 2 wherein , in the step of assigning , said characterization is based on said supplemental broadcast data . 5 . The method of claim 2 wherein , in the step of creating , said association is between said at least one characterized data string and said program data . 6 . The method of claim 2 , further comprising the step of : formatting said at least one characterized data string in a manner consistent with said characterization . 7 . The method of claim 2 , further comprising the step of : displaying said at least one characterized data string in a manner consistent with said characterization . 8 . The method of claim 7 , further comprising the step of : permitting a user [FEATURE ID: 5]

to select a broadcast signal based on at least one of : said at least one unrecognized data string , at least one formatted unrecognized data string , and said at least one characterized data string . 9 . The method of claim 2 , further comprising the step of : storing said at least one unrecognized data string and said characterization in a memory . 10 . The method of claim 2 , further comprising the step of : permitting a user to select a broadcast signal based on said characterization . 11 . A method of providing for a user a stream [FEATURE ID: 3]

of program data which is free of unwanted program data , comprising the steps of : receiving a first broadcast signal [FEATURE ID: 3]

having first program data [FEATURE ID: 13]

from a first data source [FEATURE ID: 3]

; outputting [FEATURE ID: 2]

said first program data for a user ; during the outputting of said first program data , scanning a plurality of second data sources [FEATURE ID: 7]

for second program data [FEATURE ID: 3]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US7469415B2
Filed: 1999-10-08
Issued: 2008-12-23
Patent Holder: (Original Assignee) LG Electronics Inc     (Current Assignee) LG Electronics Inc
Inventor(s): Jin Pil Kim, C. Gomer Thomas

Title: Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
[FEATURE ID: 1] methodcircuit, device, process, system, methodology, methods, technique[FEATURE ID: 1] method
[TRANSITIVE ID: 2] receiving, demodulatingprocessing, decoding, filtering, analyzing, detecting, identifying, obtaining[TRANSITIVE ID: 2] controlling, receiving, parsing, said
[FEATURE ID: 3] television, wideband analog, serial interface, cable network connector, wideband ADC, mixer, demodulator, parallel interface, cable broadcast channeltuner, channel, receiver, transceiver, multiplexer, transmitter, decoder[FEATURE ID: 3] digital television receiver, virtual channel table, broadcasting station
[FEATURE ID: 4] signal, selecting, channel, Datacontent, transmission, program, service, broadcast, output, presentation[FEATURE ID: 4] display, inactive channel, digital broadcast signal, parsed virtual channel table, channel, broadcast program
[TRANSITIVE ID: 5] comprisingperforming, including, includes, by, involving, involves, having[TRANSITIVE ID: 5] comprising
[FEATURE ID: 6] cable networkreceiver, antenna, medium, media[FEATURE ID: 6] means
[TRANSITIVE ID: 7] digitizingreading, decoding, recognizing, searching, receiving, acquiring, identifying[TRANSITIVE ID: 7] retrieving
[FEATURE ID: 8] digital converterchannel, decoder, processor, controller[FEATURE ID: 8] user
[TRANSITIVE ID: 9] desiredrequired, expected, predetermined, intended[TRANSITIVE ID: 9] scheduled
[TRANSITIVE ID: 10] providingdelivering, sending, transporting, transmitting, broadcasting, receiving, conveying[TRANSITIVE ID: 10] carrying
[FEATURE ID: 11] claimcl claim, aspect, clair, statement, clam, figure, paragraph[FEATURE ID: 11] claim
[FEATURE ID: 12] channel outputflag, message, symbol, pointer, record, data, number[FEATURE ID: 12] value, predefined data field, program number field, service location descriptor
1 . A method [FEATURE ID: 1]

for receiving [TRANSITIVE ID: 2]

a television [FEATURE ID: 3]

( TV ) signal [FEATURE ID: 4]

comprising [TRANSITIVE ID: 5]

: receiving an input signal from a cable network [FEATURE ID: 6]

; digitizing [TRANSITIVE ID: 7]

a contiguous band of frequencies in the input signal via a wideband analog [FEATURE ID: 3]

- to - digital converter [FEATURE ID: 8]

( ADC ) , wherein the contiguous band of frequencies comprises all received channels that exist in the input signal and the received channels comprise a plurality of desired [TRANSITIVE ID: 9]

channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 4]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 10]

the plurality of desired channels via a serial interface [FEATURE ID: 3]

. 2 . The method of claim [FEATURE ID: 11]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 3]

to the wideband ADC [FEATURE ID: 3]

via at least one of an analog amplifier and an analog filter . 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 3]

of a plurality of mixers , a complex signal corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase ( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter of a plurality of filters , the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel . 6 . The method of claim 3 , wherein the method comprises : demodulating [FEATURE ID: 2]

, via each demodulator [FEATURE ID: 3]

of a plurality of demodulators , the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 12]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel [FEATURE ID: 4]

, of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 3]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 3]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 4]

1 . In a digital television receiver [FEATURE ID: 3]

, a method [FEATURE ID: 1]

of controlling [TRANSITIVE ID: 2]

display [FEATURE ID: 4]

of an inactive channel [FEATURE ID: 4]

, comprising [TRANSITIVE ID: 5]

: receiving [TRANSITIVE ID: 2]

a digital broadcast signal [FEATURE ID: 4]

comprising a virtual channel table [FEATURE ID: 3]

; parsing [TRANSITIVE ID: 2]

the virtual channel table ; retrieving [TRANSITIVE ID: 7]

identification information from the parsed virtual channel table [FEATURE ID: 4]

indicating whether a channel [FEATURE ID: 4]

is inactive ; and in response to said [TRANSITIVE ID: 2]

identification information indicating that the channel is inactive , controlling display of said channel when said channel is selected by a user [FEATURE ID: 8]

, wherein said inactive channel is a channel that is not presently carrying [TRANSITIVE ID: 10]

a broadcast program [FEATURE ID: 4]

; however , the same inactive channel is scheduled [TRANSITIVE ID: 9]

to carry a broadcast program at a predetermined later time from a broadcasting station [FEATURE ID: 3]

without local viewer interactions , wherein the inactive channel is capable of being automatically skipped . 2 . The method of claim [FEATURE ID: 11]

1 , wherein retrieving the identification information comprises reading a value [FEATURE ID: 12]

of a predefined data field [FEATURE ID: 12]

for identifying an inactive channel in the parsed virtual channel table . 3 . The method of claim 1 , wherein retrieving the identification information comprises reading a value of a program number field [FEATURE ID: 12]

in the parsed virtual channel table . 4 . The method of claim 1 , wherein retrieving the identification information comprises determining whether a service location descriptor [FEATURE ID: 12]

is found in the parsed virtual channel table . 5 . A digital television receiver , comprising : receiving means [FEATURE ID: 6]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US20080238808A1
Filed: 2007-02-15
Issued: 2008-10-02
Patent Holder: (Original Assignee) Mitsubishi Electric Corp     (Current Assignee) Mitsubishi Electric Corp
Inventor(s): Eiji Arita, Jun Ido, Akiko Maeno

Title: Diversity receiver
[FEATURE ID: 1] method, signal, digital converter, cable network connector, wideband ADC, mixer, demodulator, parallel interfacetuner, receiver, channel, network, transceiver, combiner, decoder[FEATURE ID: 1] diversity receiver, circuit
[TRANSITIVE ID: 2] receiving, digitizing, selectingseparating, processing, obtaining, acquiring, capturing, generating, isolating[TRANSITIVE ID: 2] receiving, adjusting
[FEATURE ID: 3] television, wideband analog, complex signal, channel, cable broadcast channel, Datafrequency, carrier, tv, video, signal, tuner, satellite[FEATURE ID: 3] broadcast radio signal
[TRANSITIVE ID: 4] comprisingcomprises, including, includes, involving, having, with, of[TRANSITIVE ID: 4] comprising
[FEATURE ID: 5] input signaloutput signal, antenna signal, output, ones, communication signal, antenna, broadcast signal[FEATURE ID: 5] reception signal, signal
[FEATURE ID: 6] cable networkreceiver, signal, channel, antenna[FEATURE ID: 6] diversity
[FEATURE ID: 7] frequencieswaves, components, channels, signals, ones, those, inputs[FEATURE ID: 7] respective gains, first reception signals, second reception signals, reception signals, directional radiation patterns
[TRANSITIVE ID: 8] receivedtransmitted, broadcast, receiving, reception[TRANSITIVE ID: 8] received
[FEATURE ID: 9] channelscomponents, data, paths, the, carriers[FEATURE ID: 9] signals
[TRANSITIVE ID: 10] comprise, providinghas, including, presenting, displaying, transmitting, generating, have[TRANSITIVE ID: 10] having
[FEATURE ID: 11] serial interface, analog amplifier, analog filter, filtermultiplexer, amplifier, equalizer, mixer, receiver, device, circuit[FEATURE ID: 11] first adder, second adder, antenna control unit
[FEATURE ID: 12] claimembodiment, the claim, aspect, clair, statement, figure, paragraph[FEATURE ID: 12] claim
[FEATURE ID: 13] mixers, demodulatorstransmitters, channels, signals, switches, receivers, amplifiers, second[FEATURE ID: 13] first variable gain amplifiers, respective first antennas, second variable gain amplifiers
[FEATURE ID: 14] filtersamplifiers, channels, outputs, receivers[FEATURE ID: 14] respective second antennas
[FEATURE ID: 15] MHz channelresponse, channel, pulse, frequency, noise, phase, signal[FEATURE ID: 15] first delay
[FEATURE ID: 16] demodulatingdetecting, receiving, mixing, removing, comparing, combining, multiplying[FEATURE ID: 16] adding
[FEATURE ID: 17] channel outputinformation, signal, value, data[FEATURE ID: 17] profile information
1 . A method [FEATURE ID: 1]

for receiving [TRANSITIVE ID: 2]

a television [FEATURE ID: 3]

( TV ) signal [FEATURE ID: 1]

comprising [TRANSITIVE ID: 4]

: receiving an input signal [FEATURE ID: 5]

from a cable network [FEATURE ID: 6]

; digitizing [TRANSITIVE ID: 2]

a contiguous band of frequencies [FEATURE ID: 7]

in the input signal via a wideband analog [FEATURE ID: 3]

- to - digital converter [FEATURE ID: 1]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 8]

channels [FEATURE ID: 9]

that exist in the input signal and the received channels comprise [TRANSITIVE ID: 10]

a plurality of desired channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 2]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 10]

the plurality of desired channels via a serial interface [FEATURE ID: 11]

. 2 . The method of claim [FEATURE ID: 12]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 1]

to the wideband ADC [FEATURE ID: 1]

via at least one of an analog amplifier [FEATURE ID: 11]

and an analog filter [FEATURE ID: 11]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 1]

of a plurality of mixers [FEATURE ID: 13]

, a complex signal [FEATURE ID: 3]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase ( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 11]

of a plurality of filters [FEATURE ID: 14]

, the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 15]

. 6 . The method of claim 3 , wherein the method comprises : demodulating [FEATURE ID: 16]

, via each demodulator [FEATURE ID: 1]

of a plurality of demodulators [FEATURE ID: 13]

, the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 17]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel [FEATURE ID: 3]

, of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 1]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 3]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 3]

1 . A diversity receiver [FEATURE ID: 1]

comprising [TRANSITIVE ID: 4]

: a plurality of first antennas having [TRANSITIVE ID: 10]

directional radiation patterns different from one another , for receiving [TRANSITIVE ID: 2]

a horizontally polarized broadcast radio signal [FEATURE ID: 3]

; a plurality of first variable gain amplifiers [FEATURE ID: 13]

provided for said respective first antennas [FEATURE ID: 13]

, for adjusting [TRANSITIVE ID: 2]

respective gains [FEATURE ID: 7]

thereof ; a first adder [FEATURE ID: 11]

for adding [TRANSITIVE ID: 16]

first reception signals [FEATURE ID: 7]

having been received [TRANSITIVE ID: 8]

by said first antennas and gain - adjusted by said first variable gain amplifiers , to output the first added reception signal [FEATURE ID: 5]

; a plurality of second antennas having directional radiation patterns different from one another , arranged in positions different from those of said first antennas , for receiving the horizontally polarized broadcast radio signal ; a plurality of second variable gain amplifiers [FEATURE ID: 13]

provided for said respective second antennas [FEATURE ID: 14]

, for adjusting respective gains thereof ; a second adder [FEATURE ID: 11]

for adding second reception signals [FEATURE ID: 7]

having been received by said second antennas and gain - adjusted by said second variable gain amplifiers , to output the second added reception signal ; a diversity [FEATURE ID: 6]

- combining circuit [FEATURE ID: 1]

for diversity - combining signals [FEATURE ID: 9]

based on the first and second added reception signals [FEATURE ID: 7]

, to output the diversity - combined signal [FEATURE ID: 5]

; and an antenna control unit [FEATURE ID: 11]

for controlling said pluralities of first and second variable gain amplifiers . 2 . The diversity receiver of claim [FEATURE ID: 12]

1 , wherein said antenna control unit controls so that directions of directional radiation patterns [FEATURE ID: 7]

for the first and second added reception signals become different from each other . 3 . The diversity receiver of claim 2 , wherein the difference between the directions of the directional radiation patterns for the first and second added reception signals is within a range of π / 2 ± π / 4 . 4 . The diversity receiver of claim 2 , wherein the difference between the directions of the directional radiation pattern for the first and second added reception signals is within a range of π / 2 ± π / 8 . 5 . The diversity receiver of claim 2 , wherein the difference between the directions of directional radiation patterns for the first and second added reception signals is approximately π / 2 . 6 . The diversity receiver of claim 1 , wherein said antenna control unit controls on the basis of first reception - power information , first delay [FEATURE ID: 15]

- profile information [FEATURE ID: 17]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US7421259B2
Filed: 2004-04-16
Issued: 2008-09-02
Patent Holder: (Original Assignee) Broadcom Corp     (Current Assignee) Avago Technologies International Sales Pte Ltd
Inventor(s): Ramon A. Gomez, Takayuki Hayashi

Title: RF mixer with high local oscillator linearity using multiple local oscillator phases
[FEATURE ID: 1] method, cable network, cable network connector, wideband ADC, analog amplifier, analog filter, mixer, demodulator, parallel interfacereceiver, circuit, device, converter, antenna, amplifier, transmitter[FEATURE ID: 1] mixer, RF mixer
[FEATURE ID: 2] television, receiveddigital, receiving, radio, broadband, wireless, tunable, reception[FEATURE ID: 2] radio frequency
[FEATURE ID: 3] signaloutput, signals, input, stream[FEATURE ID: 3] signal
[TRANSITIVE ID: 4] comprising, digitizing, selecting, providinggenerating, receiving, including, capturing, reading, decoding, with[TRANSITIVE ID: 4] comprising, having
[FEATURE ID: 5] input signal, filterinput, rf, output, amplifier, element, receiver, analog[FEATURE ID: 5] input transistor pair, individual LO waveform
[FEATURE ID: 6] frequencies, channelswaves, components, signals, samples, waveform, outputs, harmonics[FEATURE ID: 6] LO waveforms, square waves
[FEATURE ID: 7] wideband analog, digital converter, channel outputfrequency, signal, channel, voltage, rf, source, sample[FEATURE ID: 7] baseband signal, LO waveform, phase difference
[TRANSITIVE ID: 8] comprisecomprises, share, provide, have[TRANSITIVE ID: 8] sixth submixers output
[FEATURE ID: 9] serial interfacedevice, circuit, output, mixer, subgroup, pair, switch[FEATURE ID: 9] submixer, other submixer, tail current source
[FEATURE ID: 10] claimaspect, statement, clam, figure, paragraph, embodiment, item[FEATURE ID: 10] claim
[FEATURE ID: 11] mixers, filters, demodulatorschannels, transformers, receivers, amplifiers, stages, detectors, outputs[FEATURE ID: 11] submixers
[FEATURE ID: 12] phasefrequency, sequence, sine, line[FEATURE ID: 12] piecewise linear signal
[FEATURE ID: 13] basebandzero, different, orthogonal, 90, quadrature[FEATURE ID: 13] equal
[FEATURE ID: 14] MHz channelresponse, filter, characteristic, circuit, signal, pulse, frequency[FEATURE ID: 14] local oscillator, polarity, linear waveform
1 . A method [FEATURE ID: 1]

for receiving a television [FEATURE ID: 2]

( TV ) signal [FEATURE ID: 3]

comprising [TRANSITIVE ID: 4]

: receiving an input signal [FEATURE ID: 5]

from a cable network [FEATURE ID: 1]

; digitizing [TRANSITIVE ID: 4]

a contiguous band of frequencies [FEATURE ID: 6]

in the input signal via a wideband analog [FEATURE ID: 7]

- to - digital converter [FEATURE ID: 7]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 2]

channels [FEATURE ID: 6]

that exist in the input signal and the received channels comprise [TRANSITIVE ID: 8]

a plurality of desired channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 4]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 4]

the plurality of desired channels via a serial interface [FEATURE ID: 9]

. 2 . The method of claim [FEATURE ID: 10]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 1]

to the wideband ADC [FEATURE ID: 1]

via at least one of an analog amplifier [FEATURE ID: 1]

and an analog filter [FEATURE ID: 1]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 1]

of a plurality of mixers [FEATURE ID: 11]

, a complex signal corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase [FEATURE ID: 12]

( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband [FEATURE ID: 13]

. 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 5]

of a plurality of filters [FEATURE ID: 11]

, the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 14]

. 6 . The method of claim 3 , wherein the method comprises : demodulating , via each demodulator [FEATURE ID: 1]

of a plurality of demodulators [FEATURE ID: 11]

, the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 7]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel , of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 1]

1 . A radio frequency [FEATURE ID: 2]

( RF ) mixer [FEATURE ID: 1]

, comprising [TRANSITIVE ID: 4]

: a. an input transistor pair [FEATURE ID: 5]

, configured to receive a baseband signal [FEATURE ID: 7]

and a local oscillator [FEATURE ID: 14]

( LO ) signal [FEATURE ID: 3]

; b. a plurality of submixers [FEATURE ID: 11]

coupled to each other in parallel , configured to mix the baseband signal and individual phase - shifted LO waveforms [FEATURE ID: 6]

, each submixer [FEATURE ID: 9]

in the plurality of submixers being driven by a single phase - shifted LO waveform [FEATURE ID: 7]

and having [TRANSITIVE ID: 4]

a polarity [FEATURE ID: 14]

that prevents cancellation of signals output from each other submixer [FEATURE ID: 9]

in the plurality of submixers ; and c. a tail current source [FEATURE ID: 9]

configured to supply power , wherein the plurality of submixers share the input transistor pair and the tail current source , and wherein the LO signal is divided into a plurality of individual phase - shifted LO waveforms that create a piecewise linear waveform [FEATURE ID: 14]

approximating the LO signal when combined , and a phase difference [FEATURE ID: 7]

between any two time - adjacent individual LO waveforms in the plurality of individual LO waveforms is approximately equal [FEATURE ID: 13]

to a phase difference between any other two time - adjacent individual LO waveforms in the plurality of individual LO waveforms . 2 . The RF mixer [FEATURE ID: 1]

of claim [FEATURE ID: 10]

1 , wherein said phase difference is approximately 45 degrees . 3 . The RF mixer of claim 1 , wherein an ON time of an individual LO waveform [FEATURE ID: 5]

in the plurality of individual LO waveforms does not overlap with an ON time of another individual LO waveform in the plurality of individual LO waveforms . 4 . The RF mixer of claim 1 , wherein said plurality of submixers includes six submixers . 5 . The RF mixer of claim 4 , wherein first , third , fourth , and sixth submixers output [FEATURE ID: 8]

a signal that is scaled by sqrt ( 2 ) / 2 . 6 . The RF mixer of claim 4 , wherein said LO signal comprises eight square waves [FEATURE ID: 6]

summed into a piecewise linear signal [FEATURE ID: 12]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US7373125B2
Filed: 2003-02-28
Issued: 2008-05-13
Patent Holder: (Original Assignee) Motorola Inc     (Current Assignee) Motorola Solutions Inc
Inventor(s): Nihal Godambe, John W. Simmons, James Goatley, Charles Ruelke

Title: Off-channel signal detector with programmable hysteresis
[FEATURE ID: 1] method, cable network, cable network connector, parallel interfacetransmitter, receiver, system, transceiver, modem, port, terminal[FEATURE ID: 1] communication module
[FEATURE ID: 2] television, filter, cable broadcast channeltuner, channel, receiver, video, tv, processor, mixer[FEATURE ID: 2] variable gain amplifier
[FEATURE ID: 3] signal, received, mixersinput, output, communication, broadcast, transmitter, mixer, receiving[FEATURE ID: 3] post-mixer amplifier stage, quadrature detection
[TRANSITIVE ID: 4] comprising, compriseshaving, with, defines, of, incorporates, compromising, via[TRANSITIVE ID: 4] comprising, including, has, includes
[FEATURE ID: 5] input signal, channel outputinput, image, output, result, signal, information, interface[FEATURE ID: 5] output signal
[TRANSITIVE ID: 6] digitizingproviding, generating, receiving, determining[TRANSITIVE ID: 6] having
[FEATURE ID: 7] wideband analog, complex signal, phase, channelfrequency, carrier, band, signal, chip, quadrature, line[FEATURE ID: 7] channel signal condition
[FEATURE ID: 8] digital converterdecoder, circuit, processor, controller[FEATURE ID: 8] programmable hysteresis comparator module
[TRANSITIVE ID: 9] comprisedetect, include, determine, provide, form, output, generate[TRANSITIVE ID: 9] produce, receive, indicate
[FEATURE ID: 10] serial interfacefilter, controller, switch, comparator, summer, selector, receiver[FEATURE ID: 10] mixer stage responsive, mixer stage, comparator element, summer element, voltage threshold detector, multiplexer, first post-mixer amplifier
[FEATURE ID: 11] claimembodiment, aspect, clair, statement, clam, figure, paragraph[FEATURE ID: 11] claim
[FEATURE ID: 12] wideband ADCdetector, input, circuit, amplifier[FEATURE ID: 12] channel signal detector
[FEATURE ID: 13] analog amplifier, analog filteramplifier, inverter, adder, equalizer, interface, oscillator, oscilloscope[FEATURE ID: 13] automatic gain control module
[FEATURE ID: 14] mixerreceiver, amplifier, combiner, comparator, oscillator[FEATURE ID: 14] second post-mixer amplifier
[FEATURE ID: 15] MHz channelvalue, coefficient, output, bandwidth[FEATURE ID: 15] programmable hysteresis threshold
[FEATURE ID: 16] demodulatorcorresponding, receiver, processor, filter[FEATURE ID: 16] post-mixer amplifier stage responsive
1 . A method [FEATURE ID: 1]

for receiving a television [FEATURE ID: 2]

( TV ) signal [FEATURE ID: 3]

comprising [TRANSITIVE ID: 4]

: receiving an input signal [FEATURE ID: 5]

from a cable network [FEATURE ID: 1]

; digitizing [TRANSITIVE ID: 6]

a contiguous band of frequencies in the input signal via a wideband analog [FEATURE ID: 7]

- to - digital converter [FEATURE ID: 8]

( ADC ) , wherein the contiguous band of frequencies comprises [TRANSITIVE ID: 4]

all received [TRANSITIVE ID: 3]

channels that exist in the input signal and the received channels comprise [TRANSITIVE ID: 9]

a plurality of desired channels and a plurality of undesired channels ; concurrently selecting each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing the plurality of desired channels via a serial interface [FEATURE ID: 10]

. 2 . The method of claim [FEATURE ID: 11]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 1]

to the wideband ADC [FEATURE ID: 12]

via at least one of an analog amplifier [FEATURE ID: 13]

and an analog filter [FEATURE ID: 13]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 14]

of a plurality of mixers [FEATURE ID: 3]

, a complex signal [FEATURE ID: 7]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase [FEATURE ID: 7]

( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 2]

of a plurality of filters , the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 15]

. 6 . The method of claim 3 , wherein the method comprises : demodulating , via each demodulator [FEATURE ID: 16]

of a plurality of demodulators , the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 5]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel [FEATURE ID: 7]

, of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 1]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 2]

1 . A communication module [FEATURE ID: 1]

comprising [TRANSITIVE ID: 4]

: a variable gain amplifier [FEATURE ID: 2]

; a mixer stage responsive [FEATURE ID: 10]

to the variable gain amplifier ; a post-mixer amplifier stage responsive [FEATURE ID: 16]

to the mixer stage [FEATURE ID: 10]

, the post-mixer amplifier stage [FEATURE ID: 3]

to produce [TRANSITIVE ID: 9]

an amplified first differential signal and an amplified second differential signal ; an off - channel signal detector responsive to the post-mixer amplifier stage , the off - channel signal detector [FEATURE ID: 12]

having [TRANSITIVE ID: 6]

a first input to receive [TRANSITIVE ID: 9]

the amplified first differential signal and having a second input to receive the amplified second differential signal , the off - channel signal detector including [TRANSITIVE ID: 4]

a programmable hysteresis comparator module [FEATURE ID: 8]

, the off - channel signal detector to produce an output signal [FEATURE ID: 5]

to indicate [TRANSITIVE ID: 9]

whether an off - channel signal condition [FEATURE ID: 7]

is detected , wherein the programmable hysteresis comparator module has [TRANSITIVE ID: 4]

a programmable hysteresis threshold [FEATURE ID: 15]

; and wherein the programmable hysteresis comparator module includes [TRANSITIVE ID: 4]

a comparator element [FEATURE ID: 10]

and a summer element [FEATURE ID: 10]

having a first input and a second input , the first input responsive to a voltage threshold detector [FEATURE ID: 10]

, the second input responsive to a multiplexer [FEATURE ID: 10]

. 2 . The communication module of claim [FEATURE ID: 11]

1 wherein the output signal is a flag that is input to an automatic gain control module [FEATURE ID: 13]

. 3 . The communication module of claim 1 , wherein the mixer stage includes a first mixer element and a second mixer element , for quadrature detection [FEATURE ID: 3]

. 4 . The communication module of claim 3 , wherein the post-mixer amplifier stage includes a first post-mixer amplifier element responsive to the first mixer element and a second post-mixer amplifier element responsive to the second mixer element and wherein the first post-mixer amplifier [FEATURE ID: 10]

produces the amplified first differential signal and the second post-mixer amplifier [FEATURE ID: 14]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US20080096509A1
Filed: 2006-10-19
Issued: 2008-04-24
Patent Holder: (Original Assignee) MaxLinear Inc     (Current Assignee) MaxLinear Inc
Inventor(s): Curtis Ling

Title: Low Complexity Diversity Receiver
[FEATURE ID: 1] methodcircuit, methods, way, digital method, processing method, process, system[FEATURE ID: 1] method
[TRANSITIVE ID: 2] receiving, providing, demodulatingprocessing, generating, transmitting, communicating, separating, decoding, obtaining[TRANSITIVE ID: 2] combining, receiving
[FEATURE ID: 3] television, wideband analog, digital converter, received, cable network connector, wideband ADC, filter, demodulator, parallel interface, cable broadcast channeltuner, channel, multiplexer, mixer, receiver, digital, signal[FEATURE ID: 3] diversity receiver, Time Division Multiple Access
[FEATURE ID: 4] signalbroadcast, stream, channel, call, signals, system, service[FEATURE ID: 4] signal
[TRANSITIVE ID: 5] comprisingcomprises, including, includes, by, involving, involves, compromising[TRANSITIVE ID: 5] comprising
[FEATURE ID: 6] input signal, analog amplifier, channel outputinput, output, antenna, image, rf, interface, analog[FEATURE ID: 6] RF signal, Intermediate Frequency, Orthogonal Frequency Division Multiplex
[FEATURE ID: 7] cable networkport, transmitter, signal, component, device, radio, location[FEATURE ID: 7] portion, first RF front end
[TRANSITIVE ID: 8] digitizingfiltering, processing, receiving, measuring[TRANSITIVE ID: 8] correlating
[FEATURE ID: 9] contiguous band, channelfrequency, spectrum, broadband, subband, signal, resolution, range[FEATURE ID: 9] time slot, bandwidth, signal bandwidth prior, signal bandwidth
[FEATURE ID: 10] frequencies, mixers, demodulators, Datadata, channels, symbols, receivers, power, tones, carriers[FEATURE ID: 10] signals, diversity signal, quadrature signals, co-channel interference
[FEATURE ID: 11] channelsfrequencies, lanes, bands, phases, carriers, cells, signals[FEATURE ID: 11] diversity signal paths
[TRANSITIVE ID: 12] compriseidentify, determine, provide, have, form[TRANSITIVE ID: 12] generate
[TRANSITIVE ID: 13] selectingtuning, shifting, receiving, changing, modifying, restoring, rotating[TRANSITIVE ID: 13] converting, adjusting
[FEATURE ID: 14] serial interfacetuner, mixer, converter, transmitter, filter, transceiver, receiver[FEATURE ID: 14] common Local Oscillator signal
[FEATURE ID: 15] claimpatent, embodiment, claim of, the claim, cl claim, item, clause[FEATURE ID: 15] claim
[FEATURE ID: 16] mixerdiode, generator, frequency, synthesizer, filter[FEATURE ID: 16] quadrature Local Oscillator
[FEATURE ID: 17] complex signal, basebandfrequency, quadrature, phase, signals, reference signal, data signal, second[FEATURE ID: 17] baseband signal, first RF signal, first diversity signal, second diversity signal, phase shift
[FEATURE ID: 18] filtersantennas, frequencies, channels, outputs[FEATURE ID: 18] RF signals
[FEATURE ID: 19] MHz channelvalue, signal, response, frequency, threshold, spectrum, coefficient[FEATURE ID: 19] correlation value, phase
1 . A method [FEATURE ID: 1]

for receiving [TRANSITIVE ID: 2]

a television [FEATURE ID: 3]

( TV ) signal [FEATURE ID: 4]

comprising [TRANSITIVE ID: 5]

: receiving an input signal [FEATURE ID: 6]

from a cable network [FEATURE ID: 7]

; digitizing [TRANSITIVE ID: 8]

a contiguous band [FEATURE ID: 9]

of frequencies [FEATURE ID: 10]

in the input signal via a wideband analog [FEATURE ID: 3]

- to - digital converter [FEATURE ID: 3]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 3]

channels [FEATURE ID: 11]

that exist in the input signal and the received channels comprise [TRANSITIVE ID: 12]

a plurality of desired channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 13]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 2]

the plurality of desired channels via a serial interface [FEATURE ID: 14]

. 2 . The method of claim [FEATURE ID: 15]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 3]

to the wideband ADC [FEATURE ID: 3]

via at least one of an analog amplifier [FEATURE ID: 6]

and an analog filter . 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 16]

of a plurality of mixers [FEATURE ID: 10]

, a complex signal [FEATURE ID: 17]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase ( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband [FEATURE ID: 17]

. 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 3]

of a plurality of filters [FEATURE ID: 18]

, the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 19]

. 6 . The method of claim 3 , wherein the method comprises : demodulating [FEATURE ID: 2]

, via each demodulator [FEATURE ID: 3]

of a plurality of demodulators [FEATURE ID: 10]

, the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 6]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel [FEATURE ID: 9]

, of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 3]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 3]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 10]

1 . A method [FEATURE ID: 1]

of combining [TRANSITIVE ID: 2]

signals [FEATURE ID: 10]

in a diversity receiver [FEATURE ID: 3]

, the method comprising [TRANSITIVE ID: 5]

: receiving [TRANSITIVE ID: 2]

an RF signal [FEATURE ID: 6]

in each of a plurality of diversity signal paths [FEATURE ID: 11]

; frequency converting [TRANSITIVE ID: 13]

each of the RF signals [FEATURE ID: 18]

to a corresponding frequency converted diversity signal [FEATURE ID: 10]

; correlating [TRANSITIVE ID: 8]

a first frequency converted diversity signal with at least one distinct frequency converted diversity signal to generate [TRANSITIVE ID: 12]

a correlation value [FEATURE ID: 19]

; adjusting [TRANSITIVE ID: 13]

a phase [FEATURE ID: 19]

of the first frequency converted diversity signal based on the correlation value ; and combining the frequency converted diversity signals . 2 . The method of claim [FEATURE ID: 15]

1 , further comprising frequency converting the combined frequency converted diversity signal to an Intermediate Frequency [FEATURE ID: 6]

. 3 . The method of claim 1 , further comprising demodulating the combined frequency converted diversity signal . 4 . The method of claim 1 , wherein receiving the RF signal comprises receiving a Time Division Multiple Access [FEATURE ID: 3]

( TDMA ) signal [FEATURE ID: 4]

during at least one time slot [FEATURE ID: 9]

not assigned to the diversity receiver . 5 . The method of claim 1 , wherein frequency converting each of the RF signals comprises mixing each of the RF signals with a common Local Oscillator signal [FEATURE ID: 14]

to generate substantially a baseband signal [FEATURE ID: 17]

. 6 . The method of claim 1 , wherein frequency converting each of the RF signals comprises mixing each of the RF signals with a quadrature Local Oscillator [FEATURE ID: 16]

to generate quadrature signals [FEATURE ID: 10]

. 7 . The method of claim 1 , wherein correlating the first frequency converted diversity signal with at least one distinct frequency converted diversity signal comprises multiplying the first frequency converted diversity signal with the at least one distinct frequency converted diversity signal . 8 . The method of claim 7 , wherein correlating the first frequency converted diversity signal with at least one distinct frequency converted diversity signal further comprises filtering each of the first frequency converted signal and the at least one distinct frequency converted diversity signal to a bandwidth [FEATURE ID: 9]

narrower than a desired signal bandwidth prior [FEATURE ID: 9]

to multiplying . 9 . The method of claim 1 , wherein combining the frequency converted diversity signals comprises selecting one frequency converted diversity signal . 10 . The method of claim 1 , wherein combining the frequency converted diversity signals comprises selectively summing at least two of the frequency converted diversity signals . 11 . A method of combining signals in a diversity receiver , the method comprising : receiving a first RF signal [FEATURE ID: 17]

; frequency converting the first RF signal to a first diversity signal [FEATURE ID: 17]

; receiving a second RF signal ; frequency converting the second RF signal to a second diversity signal [FEATURE ID: 17]

; phase shifting the second diversity signal to generate a phase shifted diversity signal ; correlating the first diversity signal with the phase shifted diversity signal to determine a correlation value ; adjusting a phase shift [FEATURE ID: 17]

of the phase shifted diversity signal based on the correlation value ; and summing the first diversity signal with the phase shifted diversity signal to generate a combined signal . 12 . The method of claim 11 , further comprising frequency converting the combined signal to an Intermediate Frequency . 13 . The method of claim 11 , wherein correlating the first diversity signal with the phase shifted diversity signal comprises : filtering the first diversity signal to a bandwidth that is less than approximately one - half of a desired signal bandwidth [FEATURE ID: 9]

to generate a filtered diversity signal ; and multiplying the filtered diversity signal with the phase shifted diversity signal . 14 . The method of claim 13 , wherein filtering the first diversity signal comprises filtering the first diversity signal to generate the filtered diversity signal from a portion [FEATURE ID: 7]

of the desired signal bandwidth that is typically devoid of co-channel interference [FEATURE ID: 10]

. 15 . The method of claim 11 , wherein the first RF signal comprises an Orthogonal Frequency Division Multiplex [FEATURE ID: 6]

( OFDM ) signal . 16 . A diversity receiver , comprising : a first RF front end [FEATURE ID: 7]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US7362178B2
Filed: 2005-08-12
Issued: 2008-04-22
Patent Holder: (Original Assignee) MaxLinear Inc     (Current Assignee) MaxLinear Inc
Inventor(s): Raymond Montemayor, Curtis Ling

Title: Wide dynamic range amplifier gain control
[FEATURE ID: 1] signal, complex signalsignals, communication, channel, transmission, input, component, output[FEATURE ID: 1] gain control, signal
[TRANSITIVE ID: 2] comprisinghaving, including, with, comprises, of, implementing, for[TRANSITIVE ID: 2] providing, comprising
[FEATURE ID: 3] input signalinput, antenna, output, interface[FEATURE ID: 3] attenuator control output
[FEATURE ID: 4] cable network, digital converter, cable network connector, mixer, filter, demodulatorchannel, processor, receiver, transmitter, signal, multiplexer, circuit[FEATURE ID: 4] signal input, gain control module, stage gain control output
[FEATURE ID: 5] contiguous band, wideband analogspectrum, portion, region, broadband, sequence, span, bandwidth[FEATURE ID: 5] dynamic range, gain control range, range, distinct pair
[FEATURE ID: 6] frequenciesvalues, signals, elements, ranges[FEATURE ID: 6] adjacent attenuation values
[TRANSITIVE ID: 7] receivedknown, possible, desired, available[TRANSITIVE ID: 7] fixed
[TRANSITIVE ID: 8] comprisehas, including, comprising, have[TRANSITIVE ID: 8] having
[TRANSITIVE ID: 9] desiredrequested, selected, target, required, useful, wanted, preferred[TRANSITIVE ID: 9] desired
[FEATURE ID: 10] serial interfacemultiplexer, microprocessor, filter, tuner, selector, buffer, receiver[FEATURE ID: 10] gain control input, passive attenuator
[FEATURE ID: 11] claimpreceding claim, figure, clause, embodiment, paragraph, item, clam[FEATURE ID: 11] claim
[FEATURE ID: 12] wideband ADC, analog filteramplifier, interface, antenna, filter, inverter, circuit, equalizer[FEATURE ID: 12] apparatus
[FEATURE ID: 13] analog amplifieramplifier, impedance, equalizer, inverter, adder, isolation, expander[FEATURE ID: 13] attenuator, attenuator control
[FEATURE ID: 14] basebandsaturation, maximum, null, phase[FEATURE ID: 14] linear region
[FEATURE ID: 15] MHz channelvalue, signal, coefficient, output, response, command, threshold[FEATURE ID: 15] control, provided, attenuation, step size
[FEATURE ID: 16] channel outputinput, parameter, signal, level, control, setting, value[FEATURE ID: 16] gain, gain control signal
[FEATURE ID: 17] parallel interfacemicroprocessor, controller, memory, buffer, switch[FEATURE ID: 17] step attenuator
1 . A method for receiving a television ( TV ) signal [FEATURE ID: 1]

comprising [TRANSITIVE ID: 2]

: receiving an input signal [FEATURE ID: 3]

from a cable network [FEATURE ID: 4]

; digitizing a contiguous band [FEATURE ID: 5]

of frequencies [FEATURE ID: 6]

in the input signal via a wideband analog [FEATURE ID: 5]

- to - digital converter [FEATURE ID: 4]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 7]

channels that exist in the input signal and the received channels comprise [TRANSITIVE ID: 8]

a plurality of desired [TRANSITIVE ID: 9]

channels and a plurality of undesired channels ; concurrently selecting each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing the plurality of desired channels via a serial interface [FEATURE ID: 10]

. 2 . The method of claim [FEATURE ID: 11]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 4]

to the wideband ADC [FEATURE ID: 12]

via at least one of an analog amplifier [FEATURE ID: 13]

and an analog filter [FEATURE ID: 12]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 4]

of a plurality of mixers , a complex signal [FEATURE ID: 1]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase ( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband [FEATURE ID: 14]

. 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 4]

of a plurality of filters , the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 15]

. 6 . The method of claim 3 , wherein the method comprises : demodulating , via each demodulator [FEATURE ID: 4]

of a plurality of demodulators , the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 16]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel , of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 17]

1 . An apparatus [FEATURE ID: 12]

providing [TRANSITIVE ID: 2]

gain control [FEATURE ID: 1]

over a desired [TRANSITIVE ID: 9]

dynamic range [FEATURE ID: 5]

, the apparatus comprising [TRANSITIVE ID: 2]

: an attenuator [FEATURE ID: 13]

having [TRANSITIVE ID: 8]

a signal input [FEATURE ID: 4]

, a signal output , and a control input and configured to attenuate a signal [FEATURE ID: 1]

coupled to the control input by any one of a plurality of fixed [TRANSITIVE ID: 7]

attenuation values based on a control [FEATURE ID: 15]

provided [TRANSITIVE ID: 15]

to the control input ; a variable gain amplifier stage having a signal input , a signal output , and a stage gain control input , wherein the signal input is coupled to the signal output of the attenuator , and wherein the gain [FEATURE ID: 16]

of the variable gain amplifier stage is continuously variable over a predetermined gain control range [FEATURE ID: 5]

based on a gain control signal [FEATURE ID: 16]

provided to the stage gain control input ; and a gain control module [FEATURE ID: 4]

having a gain control input [FEATURE ID: 10]

, an attenuator control output [FEATURE ID: 3]

coupled to the control input of the attenuator , and a stage gain control output [FEATURE ID: 4]

coupled to the stage gain control input of the variable gain amplifier stage , wherein the gain control module is configured to receive a gain control signal at the gain control input , identify a gain control range from a plurality of partially overlapping gain control ranges based on the gain control signal , and control the attenuation [FEATURE ID: 15]

provided by the attenuator and the gain of the variable gain amplifier stage based on the gain control signal and the gain control range that is identified . 2 . The apparatus of claim [FEATURE ID: 11]

1 , wherein the attenuator comprises a step attenuator [FEATURE ID: 17]

and the plurality of fixed attenuation values differ by approximately an integer multiple of a step size [FEATURE ID: 15]

. 3 . The apparatus of claim 1 , wherein the attenuator comprises a passive attenuator [FEATURE ID: 10]

. 4 . The apparatus of claim 1 , wherein the predetermined gain control range of the variable gain amplifier stage is less than the desired dynamic range . 5 . The apparatus of claim 1 , wherein the predetermined gain control range of the variable gain amplifier stage is greater than a difference between any two adjacent attenuation values [FEATURE ID: 6]

from the plurality of fixed attenuation values . 6 . The apparatus of claim 1 , wherein the sum of a range [FEATURE ID: 5]

of attenuation values from the attenuator with the predetermined gain control range of the variable gain amplifier stage is greater than the desired dynamic range . 7 . The apparatus of claim 1 , wherein the variable gain amplifier stage is configured to operate in a linear region [FEATURE ID: 14]

when the attenuator is controlled to a minimum attenuation value and a maximum expected signal is coupled to the signal input of the attenuator . 8 . The apparatus of claim 1 , wherein the gain control module is configured to store a plurality of threshold values , wherein each of the plurality of partially overlapping gain control ranges is defined by a distinct pair [FEATURE ID: 5]

of threshold values . 9 . The apparatus of claim 1 , wherein the gain control module is configured to store an attenuator control [FEATURE ID: 13]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US20080066132A1
Filed: 2006-09-07
Issued: 2008-03-13
Patent Holder: (Original Assignee) LG Electronics Inc     (Current Assignee) LG Electronics Inc
Inventor(s): Kwan Suk Kim

Title: Digital television receiver and method for processing a digital television signal
[FEATURE ID: 1] method, cable network, digital converter, cable network connector, wideband ADC, mixer, demodulatorcircuit, channel, receiver, device, system, converter, network[FEATURE ID: 1] method, digital television receiver
[TRANSITIVE ID: 2] receiving, digitizing, selecting, providing, demodulatingdecoding, filtering, generating, obtaining, reading, acquiring, separating[TRANSITIVE ID: 2] processing, receiving, demultiplexing, parsing
[FEATURE ID: 3] televisiondisplay, receiver, tuner, tv[FEATURE ID: 3] user
[FEATURE ID: 4] signal, parallel interface, Datatransmission, channel, service, program, content, tuner, broadcast[FEATURE ID: 4] digital television signal, transport streams, channel status change, program guide user interface
[TRANSITIVE ID: 5] comprising, comprisecomprises, having, includes, containing, for, of, compromising[TRANSITIVE ID: 5] comprising, including, defining
[FEATURE ID: 6] contiguous bandseries, combination, subset, number, group, portion, sequence[FEATURE ID: 6] list
[TRANSITIVE ID: 7] receivedbroadcast, receiving, input, digital, reception, transmitted, incoming[TRANSITIVE ID: 7] received
[FEATURE ID: 8] channelsservices, streams, cells, signals[FEATURE ID: 8] virtual channels
[FEATURE ID: 9] serial interfacereceiver, converter, decoder, microprocessor, tuner, detector, selector[FEATURE ID: 9] tuner tuning, demodulator, demultiplexer, parser, controller
[FEATURE ID: 10] claimclause, clair, clam, figure, paragraph, embodiment, item[FEATURE ID: 10] claim
[FEATURE ID: 11] channel outputchannel, signal, message, service, video, program, data[FEATURE ID: 11] virtual channel table
[FEATURE ID: 12] channelcorresponding channel, one, broadcast channel, channels, desired channel, first channel[FEATURE ID: 12] virtual channel
[FEATURE ID: 13] cable broadcast channelprogram, television channel, broadcast channel, service[FEATURE ID: 13] channel
1 . A method [FEATURE ID: 1]

for receiving [TRANSITIVE ID: 2]

a television [FEATURE ID: 3]

( TV ) signal [FEATURE ID: 4]

comprising [TRANSITIVE ID: 5]

: receiving an input signal from a cable network [FEATURE ID: 1]

; digitizing [TRANSITIVE ID: 2]

a contiguous band [FEATURE ID: 6]

of frequencies in the input signal via a wideband analog - to - digital converter [FEATURE ID: 1]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 7]

channels [FEATURE ID: 8]

that exist in the input signal and the received channels comprise [TRANSITIVE ID: 5]

a plurality of desired channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 2]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 2]

the plurality of desired channels via a serial interface [FEATURE ID: 9]

. 2 . The method of claim [FEATURE ID: 10]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 1]

to the wideband ADC [FEATURE ID: 1]

via at least one of an analog amplifier and an analog filter . 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 1]

of a plurality of mixers , a complex signal corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase ( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter of a plurality of filters , the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel . 6 . The method of claim 3 , wherein the method comprises : demodulating [FEATURE ID: 2]

, via each demodulator [FEATURE ID: 1]

of a plurality of demodulators , the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 11]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel [FEATURE ID: 12]

, of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 4]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 13]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 4]

1 . A method [FEATURE ID: 1]

of processing [TRANSITIVE ID: 2]

a digital television signal [FEATURE ID: 4]

in a digital television receiver [FEATURE ID: 1]

, the method comprising [TRANSITIVE ID: 5]

: receiving [TRANSITIVE ID: 2]

a digital television signal including [TRANSITIVE ID: 5]

a virtual channel table [FEATURE ID: 11]

comprising a list [FEATURE ID: 6]

of attributes for virtual channels [FEATURE ID: 8]

carried in transport streams [FEATURE ID: 4]

; demultiplexing [TRANSITIVE ID: 2]

the virtual channel table from the received [TRANSITIVE ID: 7]

digital television signal ; parsing [TRANSITIVE ID: 2]

channel status information from the demultiplexed virtual channel table , the parsed channel status information defining [TRANSITIVE ID: 5]

a channel status change time and a new channel status of one of the virtual channels ; and performing a channel status change [FEATURE ID: 4]

of the virtual channel [FEATURE ID: 12]

according to the parsed channel status information . 2 . The method of claim [FEATURE ID: 10]

1 , wherein the channel status change time the channel status information are in global positioning system ( GPS ) second . 3 . The method of claim 1 , wherein the new channel status is one of active , inactive and special access only in accordance with attributes of hidden field and hide guide field from the demultiplexed virtual channel table . 4 . The method of claim 3 , wherein the active is available corresponding channel [FEATURE ID: 13]

by user ' s surfing as well as through program guide user interface [FEATURE ID: 4]

. 5 . The method of claim 3 , wherein the inactive is skipped over corresponding channel while a user [FEATURE ID: 3]

is surfing and viewable future program listings in program guide . 6 . The method of claim 3 , wherein the special access only is viewable future program listings in hide guide . 7 . The method of claim 1 , further comprising setting at least one of timer according to the channel status change time from the parsed channel status information . 8 . The method of claim 7 , further comprising determining a specific time point of the set timer elapsed . 9 . A digital television receiver comprising : a tuner tuning [FEATURE ID: 9]

to a channel to receive a digital television signal ; a demodulator [FEATURE ID: 9]

demodulating the digital television signal ; a demultiplexer [FEATURE ID: 9]

demultiplexing a virtual channel table from the demodulated digital television signal ; a parser [FEATURE ID: 9]

parsing channel status information from the demultiplexed virtual channel table , the parsed channel status information defining a channel status change time and a new channel status of a virtual channel ; and a controller [FEATURE ID: 9]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US20080060024A1
Filed: 2006-08-31
Issued: 2008-03-06
Patent Holder: (Original Assignee) Silicon Laboratories Inc     (Current Assignee) Silicon Laboratories Inc
Inventor(s): Bart Decanne

Title: Wirelessly transmitting programming obtained from a satellite system
[FEATURE ID: 1] television, cable broadcast channeltuner, radio, receiving, satellite, processor, signal, channel[FEATURE ID: 1] first frequency, receiver, single chip, integrated
[FEATURE ID: 2] signal, channeltransmission, receiver, tuner, modem, controller, network, band[FEATURE ID: 2] signal channel, wireless interface, bit rate, first client device, circuit, demodulator, different bit rate, client device, control information, request
[TRANSITIVE ID: 3] comprisingcomprises, having, with, for, containing, that, performing[TRANSITIVE ID: 3] comprising, including
[FEATURE ID: 4] cable network, digital converter, cable network connector, analog amplifier, analog filter, mixer, filter, demodulator, parallel interfacetransmitter, receiver, channel, network, multiplexer, device, processor[FEATURE ID: 4] apparatus, satellite antenna, converter, wireless local area network, transformer, line current, tuner, source
[FEATURE ID: 5] contiguous band, frequencies, channels, MHz channel, Databandwidth, spectrum, bands, data, frequency, components, waves[FEATURE ID: 5] signals
[FEATURE ID: 6] wideband analogtuner, radio, rf, broadband, information, voltage, spectrum[FEATURE ID: 6] downconvert incoming radio frequency, second frequency signals, multiple client devices
[TRANSITIVE ID: 7] comprisesidentifies, represents, supports, indicates, defines, has, comprise[TRANSITIVE ID: 7] comprises
[TRANSITIVE ID: 8] received, desiredavailable, incoming, expected, required, broadcast, selected, predetermined[TRANSITIVE ID: 8] requested
[FEATURE ID: 9] serial interfacetuner, modem, multiplexer, receiver, modulator, mixer, controller[FEATURE ID: 9] transcoder, second tuner
[FEATURE ID: 10] claimpatent, paragraph, claimed, clause, item, preceding claim, embodiment[FEATURE ID: 10] claim
[FEATURE ID: 11] wideband ADCantenna, apparatus, amplifier, aperture, assembly, encasement, exterior[FEATURE ID: 11] antenna enclosure, environmental enclosure
[FEATURE ID: 12] channel outputoutput, information, signal, service, data[FEATURE ID: 12] power
1 . A method for receiving a television [FEATURE ID: 1]

( TV ) signal [FEATURE ID: 2]

comprising [TRANSITIVE ID: 3]

: receiving an input signal from a cable network [FEATURE ID: 4]

; digitizing a contiguous band [FEATURE ID: 5]

of frequencies [FEATURE ID: 5]

in the input signal via a wideband analog [FEATURE ID: 6]

- to - digital converter [FEATURE ID: 4]

( ADC ) , wherein the contiguous band of frequencies comprises [TRANSITIVE ID: 7]

all received [TRANSITIVE ID: 8]

channels [FEATURE ID: 5]

that exist in the input signal and the received channels comprise a plurality of desired [TRANSITIVE ID: 8]

channels and a plurality of undesired channels ; concurrently selecting each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing the plurality of desired channels via a serial interface [FEATURE ID: 9]

. 2 . The method of claim [FEATURE ID: 10]

1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 4]

to the wideband ADC [FEATURE ID: 11]

via at least one of an analog amplifier [FEATURE ID: 4]

and an analog filter [FEATURE ID: 4]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 4]

of a plurality of mixers , a complex signal corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase ( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 4]

of a plurality of filters , the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 5]

. 6 . The method of claim 3 , wherein the method comprises : demodulating , via each demodulator [FEATURE ID: 4]

of a plurality of demodulators , the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 12]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel [FEATURE ID: 2]

, of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 4]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 1]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 5]

1 . An apparatus [FEATURE ID: 4]

comprising [TRANSITIVE ID: 3]

: an antenna enclosure [FEATURE ID: 11]

associated with a satellite antenna [FEATURE ID: 4]

, the antenna enclosure including [TRANSITIVE ID: 3]

a converter [FEATURE ID: 4]

to downconvert incoming radio frequency [FEATURE ID: 6]

( RF ) signals [FEATURE ID: 5]

from a first frequency [FEATURE ID: 1]

to a second frequency ; the antenna enclosure further including a receiver [FEATURE ID: 1]

to receive the second frequency signals [FEATURE ID: 6]

and to tune to at least one requested [TRANSITIVE ID: 8]

signal channel [FEATURE ID: 2]

; and the antenna enclosure further including a wireless interface [FEATURE ID: 2]

to receive the at least one requested signal channel and to wirelessly transmit the at least one requested signal channel . 2 . The apparatus of claim [FEATURE ID: 10]

1 , wherein the wireless interface is to wirelessly transmit the at least one requested signal channel at a bit rate [FEATURE ID: 2]

requested by a first client device [FEATURE ID: 2]

within a wireless local area network [FEATURE ID: 4]

( WLAN ) including the antenna enclosure . 3 . The apparatus of claim 1 , wherein the antenna enclosure comprises [TRANSITIVE ID: 7]

an environmental enclosure [FEATURE ID: 11]

to be located in an external environment . 4 . The apparatus of claim 3 , wherein the antenna enclosure comprises a transformer [FEATURE ID: 4]

to receive power [FEATURE ID: 12]

from a line current [FEATURE ID: 4]

. 5 . The apparatus of claim 1 , wherein the receiver comprises a single chip [FEATURE ID: 1]

integrated [TRANSITIVE ID: 1]

circuit [FEATURE ID: 2]

including a tuner [FEATURE ID: 4]

and a demodulator [FEATURE ID: 2]

. 6 . The apparatus of claim 5 , further comprising a transcoder [FEATURE ID: 9]

coupled to the demodulator , wherein the transcoder is to transcode the at least one requested signal channel to a different bit rate [FEATURE ID: 2]

or source [FEATURE ID: 4]

coding requested by a client device [FEATURE ID: 2]

. 7 . The apparatus of claim 1 , wherein the wireless interface is to wirelessly receive control information [FEATURE ID: 2]

from a client device and to communicate the control information to the receiver . 8 . The apparatus of claim 1 , wherein the receiver comprises a first tuner and a second tuner [FEATURE ID: 9]

, each to receive the second frequency signals , wherein each tuner is independently controllable by multiple client devices [FEATURE ID: 6]

. 9 . The apparatus of claim 8 , wherein the first tuner is to output a single requested signal channel responsive to a request [FEATURE ID: 2]







Targeted Patent:

Patent: US11399206B2
Filed: 2009-04-17
Issued: 2022-07-26
Patent Holder: (Original Assignee) Entropic Communications LLC     (Current Assignee) Entropic Communications LLC
Inventor(s): Madhukar Reddy, Curtis Ling, Tim Gallagher

Title: Method for receiving a television signal

 
Cross Reference / Shared Meaning between the Lines		 Charted Against:

Patent: US7340230B2
Filed: 2003-04-14
Issued: 2008-03-04
Patent Holder: (Original Assignee) Silicon Laboratories Inc     (Current Assignee) Silicon Laboratories Inc
Inventor(s): Ramin Khoini-Poorfard, Andrew W. Krone

Title: Receiver architectures utilizing coarse analog tuning and associated methods
[TRANSITIVE ID: 1] receiving, selecting, providing, demodulatingprocessing, filtering, generating, capturing, separating, combining, sampling[TRANSITIVE ID: 1] tuning, mixing
[FEATURE ID: 2] television, Databroadband, tv, tuner, video, receiver, radio, frequency[FEATURE ID: 2] signal spectrum, channel selection signal
[FEATURE ID: 3] signal, complex signal, channel output, cable broadcast channelfrequency, carrier, component, output, stream, receiver, transmitter[FEATURE ID: 3] channel, signal, frequency range, LO circuitry, first signal representative
[TRANSITIVE ID: 4] comprisingcomprises, includes, involving, having, with, by, compromising[TRANSITIVE ID: 4] comprising, including
[FEATURE ID: 5] input signal, analog amplifier, analog filterantenna, interface, analog, oscillator, instruction, amplifier, adjustment[FEATURE ID: 5] input, output, output digital baseband signals
[FEATURE ID: 6] cable network, cable network connector, wideband ADC, filter, demodulator, parallel interfacetuner, multiplexer, modem, mixer, transceiver, converter, transmitter[FEATURE ID: 6] receiver
[TRANSITIVE ID: 7] digitizing, compriseprocessing, sampling, providing, decoding, filtering, comprising, including[TRANSITIVE ID: 7] having, digital fine tune circuitry
[FEATURE ID: 8] contiguous bandmultiple, region, bandwidth, spectrum, portion, channel, frequency[FEATURE ID: 8] variable location
[FEATURE ID: 9] frequencies, channelscomponents, values, ranges, bands, wavelengths, frequency, slots[FEATURE ID: 9] signals, channels, divided versions
[FEATURE ID: 10] wideband analog, phasechannel, frequency, signal, digital, input, loop, time[FEATURE ID: 10] desired, signal spectrum such, phase, reference frequency
[FEATURE ID: 11] digital converterfrequency, circuit, signal, controller[FEATURE ID: 11] phase detector
[TRANSITIVE ID: 12] received, desiredavailable, known, possible, other, input, expected, digital[TRANSITIVE ID: 12] predetermined output
[FEATURE ID: 13] serial interfacemixer, filter, circuit, tuner, receiver, transmitter, output[FEATURE ID: 13] analog coarse tune circuitry, oscillator
[FEATURE ID: 14] mixerfrequency, receiver, synthesizer, mixing[FEATURE ID: 14] local oscillator
[FEATURE ID: 15] MHz channelvalue, signal, response, offset, indication, frequency, phase[FEATURE ID: 15] second signal representative, output frequency, control signal
1 . A method for receiving [TRANSITIVE ID: 1]

a television [FEATURE ID: 2]

( TV ) signal [FEATURE ID: 3]

comprising [TRANSITIVE ID: 4]

: receiving an input signal [FEATURE ID: 5]

from a cable network [FEATURE ID: 6]

; digitizing [TRANSITIVE ID: 7]

a contiguous band [FEATURE ID: 8]

of frequencies [FEATURE ID: 9]

in the input signal via a wideband analog [FEATURE ID: 10]

- to - digital converter [FEATURE ID: 11]

( ADC ) , wherein the contiguous band of frequencies comprises all received [TRANSITIVE ID: 12]

channels [FEATURE ID: 9]

that exist in the input signal and the received channels comprise [TRANSITIVE ID: 7]

a plurality of desired [TRANSITIVE ID: 12]

channels and a plurality of undesired channels ; concurrently selecting [TRANSITIVE ID: 1]

each of the plurality of desired channels from the input signal without selecting any of the plurality of undesired channels ; and providing [TRANSITIVE ID: 1]

the plurality of desired channels via a serial interface [FEATURE ID: 13]

. 2 . The method of claim 1 , wherein the method comprises : communicating the input signal from a cable network connector [FEATURE ID: 6]

to the wideband ADC [FEATURE ID: 6]

via at least one of an analog amplifier [FEATURE ID: 5]

and an analog filter [FEATURE ID: 5]

. 3 . The method of claim 1 , wherein the method comprises : generating , via each mixer [FEATURE ID: 14]

of a plurality of mixers , a complex signal [FEATURE ID: 3]

corresponding to each of the plurality of desired channels , and wherein each corresponding complex signal comprises an in - phase [FEATURE ID: 10]

( I ) component and a quadrature ( Q ) component . 4 . The method of claim 3 , wherein : the I and Q components of each corresponding complex signal are at baseband . 5 . The method of claim 3 , wherein the method comprises : filtering , via each filter [FEATURE ID: 6]

of a plurality of filters , the corresponding complex signal , and wherein each corresponding complex signal comprises a 6 MHz channel [FEATURE ID: 15]

. 6 . The method of claim 3 , wherein the method comprises : demodulating [FEATURE ID: 1]

, via each demodulator [FEATURE ID: 6]

of a plurality of demodulators , the corresponding complex signal to generate a demodulated signal as a desired channel output [FEATURE ID: 3]

. 7 . The method of claim 1 , wherein the method comprises : demodulating , via each demodulator of a plurality of demodulators , a desired channel , of the plurality of desired channels . 8 . The method of claim 7 , wherein the method comprises : providing a plurality of demodulated desired channels via a parallel interface [FEATURE ID: 6]

. 9 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one cable broadcast channel [FEATURE ID: 3]

. 10 . The method of claim 1 , wherein : the plurality of desired channels comprises at least one channel delivered via a Data [FEATURE ID: 2]

1 . A receiver [FEATURE ID: 6]

for tuning [TRANSITIVE ID: 1]

a channel [FEATURE ID: 3]

within a signal spectrum [FEATURE ID: 2]

, comprising [TRANSITIVE ID: 4]

: local oscillator [FEATURE ID: 14]

( LO ) circuitry having [TRANSITIVE ID: 7]

a channel selection signal [FEATURE ID: 2]

as an input [FEATURE ID: 5]

and having a coarse - tune analog mixing [TRANSITIVE ID: 1]

signal [FEATURE ID: 3]

as an output [FEATURE ID: 5]

, the output mixing signal being selected from a plurality of predetermined output [FEATURE ID: 12]

mixing signals [FEATURE ID: 9]

depending upon a desired [TRANSITIVE ID: 10]

channel to be tuned ; analog coarse tune circuitry [FEATURE ID: 13]

having the coarse - tune analog mixing signal as an input and having a signal spectrum as an input , the signal spectrum including [TRANSITIVE ID: 4]

a plurality of channels [FEATURE ID: 9]

within a frequency range [FEATURE ID: 3]

, and the analog coarse tune circuitry being configured to use the coarse - tune analog mixing signal to output a coarsely tuned signal spectrum such [FEATURE ID: 10]

that the desired channel within the coarsely tuned signal spectrum is mixed down to a variable location [FEATURE ID: 8]

within a frequency range around DC , the variable location being dependent upon the desired channel and the selected coarse - tune analog mixing signal ; and digital fine tune circuitry [FEATURE ID: 7]

having the coarsely tuned signal spectrum as an input and having as an output digital baseband signals [FEATURE ID: 5]

for the desired channel ; wherein the LO circuitry [FEATURE ID: 3]

comprises phase [FEATURE ID: 10]

- lock - loop ( PLL ) circuitry including a phase detector [FEATURE ID: 11]

and a controlled oscillator [FEATURE ID: 13]

, the phase detector receiving a first signal representative [FEATURE ID: 3]

of a reference frequency [FEATURE ID: 10]

, receiving a second signal representative [FEATURE ID: 15]

of an output frequency [FEATURE ID: 15]

of the controlled oscillator , and generating at least one control signal [FEATURE ID: 15]

to adjust the output frequency of the controlled oscillator ; and wherein the LO circuitry further comprises control circuitry configured to receive a channel selection signal and to control divider circuitry that provides the first and second signals to the phase detector based upon divided versions [FEATURE ID: 9]