DE69814730D1 - Vorentzerrungsschaltung für einen RF Verstärker - Google Patents

Vorentzerrungsschaltung für einen RF Verstärker

Info

Publication number
DE69814730D1
DE69814730D1 DE69814730T DE69814730T DE69814730D1 DE 69814730 D1 DE69814730 D1 DE 69814730D1 DE 69814730 T DE69814730 T DE 69814730T DE 69814730 T DE69814730 T DE 69814730T DE 69814730 D1 DE69814730 D1 DE 69814730D1
Authority
DE
Germany
Prior art keywords
amplifier
equalization circuit
equalization
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69814730T
Other languages
English (en)
Other versions
DE69814730T2 (de
Inventor
David Danielsons
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harris Corp
Original Assignee
Harris Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Harris Corp filed Critical Harris Corp
Publication of DE69814730D1 publication Critical patent/DE69814730D1/de
Application granted granted Critical
Publication of DE69814730T2 publication Critical patent/DE69814730T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H04L1/006—Trellis-coded modulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/185—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using a mixer in the loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/05—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using block codes, i.e. a predetermined number of check bits joined to a predetermined number of information bits
    • H03M13/13—Linear codes
    • H03M13/15—Cyclic codes, i.e. cyclic shifts of codewords produce other codewords, e.g. codes defined by a generator polynomial, Bose-Chaudhuri-Hocquenghem [BCH] codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/253—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with concatenated codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/25—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM]
    • H03M13/256—Error detection or forward error correction by signal space coding, i.e. adding redundancy in the signal constellation, e.g. Trellis Coded Modulation [TCM] with trellis coding, e.g. with convolutional codes and TCM
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
    • H03M13/2732—Convolutional interleaver; Interleavers using shift-registers or delay lines like, e.g. Ramsey type interleaver
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2933—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using a block and a convolutional code
    • H03M13/2936—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes using a block and a convolutional code comprising an outer Reed-Solomon code and an inner convolutional code
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/65—Purpose and implementation aspects
    • H03M13/6522—Intended application, e.g. transmission or communication standard
    • H03M13/6538—ATSC VBS systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0065—Serial concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/3405—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power
    • H04L27/3416—Modifications of the signal space to increase the efficiency of transmission, e.g. reduction of the bit error rate, bandwidth, or average power in which the information is carried by both the individual signal points and the subset to which the individual points belong, e.g. using coset coding, lattice coding, or related schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
    • H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2385—Channel allocation; Bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/242—Synchronization processes, e.g. processing of PCR [Program Clock References]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4314—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for fitting data in a restricted space on the screen, e.g. EPG data in a rectangular grid
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H04N21/637—Control signals issued by the client directed to the server or network components
    • H04N21/6377—Control signals issued by the client directed to the server or network components directed to server
    • H04N21/6379—Control signals issued by the client directed to the server or network components directed to server directed to encoder, e.g. for requesting a lower encoding rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/0806—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division the signals being two or more video signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0071—Use of interleaving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0018—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/4446—IF amplifier circuits specially adapted for B&W TV

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Probability & Statistics with Applications (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Television Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Error Detection And Correction (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Synchronizing For Television (AREA)
  • Details Of Television Systems (AREA)
  • Circuits Of Receivers In General (AREA)
  • Amplifiers (AREA)
  • Picture Signal Circuits (AREA)
  • Transmitters (AREA)
DE69814730T 1997-04-04 1998-03-31 Vorentzerrungsschaltung für einen RF Verstärker Expired - Fee Related DE69814730T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4293297P 1997-04-04 1997-04-04

Publications (2)

Publication Number Publication Date
DE69814730D1 true DE69814730D1 (de) 2003-06-26
DE69814730T2 DE69814730T2 (de) 2003-11-20

Family

ID=21924520

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69814730T Expired - Fee Related DE69814730T2 (de) 1997-04-04 1998-03-31 Vorentzerrungsschaltung für einen RF Verstärker
DE69828835T Expired - Fee Related DE69828835T2 (de) 1997-04-04 1998-03-31 Trelliskodierer zur Kodierung eines digitalen Datenstromes

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69828835T Expired - Fee Related DE69828835T2 (de) 1997-04-04 1998-03-31 Trelliskodierer zur Kodierung eines digitalen Datenstromes

Country Status (9)

Country Link
US (8) US6549242B1 (de)
EP (8) EP0869670A1 (de)
JP (6) JPH10304259A (de)
KR (5) KR100488234B1 (de)
CN (1) CN1210423A (de)
AU (2) AU5949498A (de)
CA (9) CA2232759A1 (de)
DE (2) DE69814730T2 (de)
TW (5) TW376651B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112136277A (zh) * 2018-05-22 2020-12-25 美光科技公司 包含补偿功率放大器噪声的实例的无线装置及系统

Families Citing this family (147)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5862459A (en) * 1996-08-27 1999-01-19 Telefonaktiebolaget Lm Ericsson Method of and apparatus for filtering intermodulation products in a radiocommunication system
US6549242B1 (en) 1997-04-04 2003-04-15 Harris Corporation Combining adjacent TV channels for transmission by a common antenna
DE69832848T2 (de) * 1997-07-01 2006-08-10 Alcatel SPS-Synchronisationsverfahren
ID22693A (id) * 1998-02-06 1999-12-09 Zenith Electronics Corp Penyandi vsb dan modulator rf biaya rendah untuk memasok sinyal jalur alas vsb ke masukan rf dari penerima televisi digital
US6188446B1 (en) * 1998-04-23 2001-02-13 Thomcast Communications, Inc. Dual diplexer combining device and television broadcast transmission system using same
JPH11331140A (ja) * 1998-05-15 1999-11-30 Nec Eng Ltd フレーム同期回路
US6377314B1 (en) * 1998-07-31 2002-04-23 Rf Technology, Inc. Methods and apparatus for transmitting analog and digital information signals
US6647070B1 (en) * 1998-09-10 2003-11-11 Texas Instruments Incorporated Method and apparatus for combating impulse noise in digital communications channels
FR2783657B1 (fr) * 1998-09-17 2000-11-17 Itis Dispositif de recalage horaire dans les reseaux de transmission de signaux numeriques
US6411644B1 (en) * 1998-09-29 2002-06-25 Lucent Technologies Inc. Frequency hop pilot technique for a control system that reduces distortion produced by electrical circuits
GB2342258B (en) * 1998-09-30 2003-07-23 Sony Uk Ltd Data symbol counting device synchronising device and method
JP3097677B2 (ja) * 1998-10-08 2000-10-10 三菱電機株式会社 通信装置および通信方法
US6122015A (en) * 1998-12-07 2000-09-19 General Electric Company Method and apparatus for filtering digital television signals
US6388717B1 (en) * 1999-01-20 2002-05-14 Harris Corporation Digital television transmitting system having data and clock recovering circuit
US6567132B1 (en) * 1999-03-10 2003-05-20 General Instruments Corp. Upconverter for a television signal headend distribution center handling analog and digital signals and method of making and using the same
US6757025B1 (en) 1999-04-09 2004-06-29 Sony Corporation Method for switching input terminals based on incoming signal format
AU4208600A (en) * 1999-04-09 2000-11-14 Sony Electronics Inc. Method for switching signal input based on device capability
US6976267B1 (en) 1999-04-09 2005-12-13 Sony Corporation Method and apparatus for controlling connections between devices
US6731347B1 (en) * 1999-04-09 2004-05-04 Sony Corporation Method for switching signal input based on device capability
US6826776B1 (en) * 1999-04-09 2004-11-30 Sony Corporation Method and apparatus for determining signal path
FR2794330B1 (fr) * 1999-05-28 2001-07-27 Telediffusion Fse Voie modulaire de traitement pour la reemission d'un signal radiofrequence de television analogique et numerique et systeme mettant en oeuvre cette voie de traitement
FR2798790B1 (fr) * 1999-09-17 2002-05-24 Itis Dispositif de synthese de frequence
AU7591900A (en) * 1999-09-20 2001-04-24 Glenayre Electronics, Inc Forward-error-correction interleaving
US7570724B1 (en) * 1999-10-14 2009-08-04 Pluris, Inc. Method of link word synchronization
JP3583963B2 (ja) * 1999-10-29 2004-11-04 三洋電機株式会社 テレビジョン受信機
JP2001157196A (ja) * 1999-11-30 2001-06-08 Ecchandesu:Kk 警戒装置及び警戒方法
KR100386572B1 (ko) * 1999-12-24 2003-06-02 엘지전자 주식회사 디지털 티브이 중계 시스템
KR100654856B1 (ko) * 1999-12-27 2006-12-08 한국전자통신연구원 비선형 왜곡 보상을 위한 적응 전치 왜곡기
US6437822B1 (en) * 2000-03-30 2002-08-20 Sencore, Inc. Method and apparatus for generating an HDTV signal for use in demonstrating an HDTV receiver
US6785903B1 (en) * 2000-04-05 2004-08-31 K Tech Telecommunications, Inc. Digital television translator with PSIP update
WO2001078369A2 (en) * 2000-04-07 2001-10-18 Harris Corporation Sharp tuned filter-combiner for combining adjacent tv channels
US6933986B2 (en) * 2000-04-07 2005-08-23 Harris Corporation Sharply tuned bandpass filter
US6996133B2 (en) * 2000-04-18 2006-02-07 Zenith Electronics Corporation Digital communication system for transmitting and receiving robustly encoded data
US20030021341A1 (en) * 2000-04-24 2003-01-30 Vigil Armando J. Method of effective backwards compatible ATSC-DTV multipath equalization through training symbol induction
JP2001333341A (ja) * 2000-05-23 2001-11-30 Pioneer Electronic Corp デジタル放送用受信装置
US6823001B1 (en) * 2000-05-31 2004-11-23 Bitrage, Inc. Dual stage communication processor
DE60122833T2 (de) 2000-07-07 2007-09-06 Hitachi, Ltd. Basisstationsvorrichtung zum Übermitteln von Multimediainformationen
US6724439B1 (en) * 2000-08-04 2004-04-20 Zenith Electronics Corporation Low cost VSB encoder and RF modulator for supplying a substantially 6 MHZ VSB signal to digital television receiver
US20020118763A1 (en) * 2000-08-10 2002-08-29 Harris Helen J. Process for associating and delivering data with visual media
US20020021760A1 (en) * 2000-08-10 2002-02-21 Harris Helen J. Process for associating and delivering data with visual media
US7406104B2 (en) * 2000-08-25 2008-07-29 Lin Yang Terrestrial digital multimedia/television broadcasting system
US6535060B2 (en) * 2000-12-05 2003-03-18 Teledyne Technologies Incorporated System and method for noise and spurious supression in power amplifier systems
US7409028B2 (en) * 2000-12-22 2008-08-05 Ericsson Inc. Clock synchronization in a communications environment
US20020085117A1 (en) * 2001-01-04 2002-07-04 Harris Frederic Joel System and method for nondisruptively embedding a QAM modulated data signal into in a composite video signal
US6703984B2 (en) * 2001-03-08 2004-03-09 Spx Corporation Common aperture UHF/VHF high band slotted coaxial antenna
GB2373417B (en) * 2001-03-13 2004-06-09 Tandberg Television Asa Satellite communication apparatus
US7187698B2 (en) * 2001-03-13 2007-03-06 Zenith Electronics Corporation Robust digital communication system
WO2002080528A1 (en) * 2001-03-30 2002-10-10 Weiss S Merrill Digital signal transmitter synchronization system
KR100378826B1 (ko) * 2001-05-21 2003-04-03 엘지전자 주식회사 디지탈 티브이 중계기
US6934514B2 (en) * 2001-06-12 2005-08-23 Spx Corporation System for transmitting digital signals with FM signals
US6701482B2 (en) * 2001-09-20 2004-03-02 Qualcomm Incorporated Method and apparatus for coding bits of data in parallel
WO2003065719A1 (en) * 2002-01-30 2003-08-07 Gennum Corporation Video serializer/deserializer with embedded audio support
US7248642B1 (en) * 2002-02-05 2007-07-24 Andrew Corporation Frequency-dependent phase pre-distortion for reducing spurious emissions in communication networks
US6907028B2 (en) * 2002-02-14 2005-06-14 Nokia Corporation Clock-based time slicing
US7130313B2 (en) * 2002-02-14 2006-10-31 Nokia Corporation Time-slice signaling for broadband digital broadcasting
FR2836615B1 (fr) * 2002-02-25 2004-05-07 Telediffusion De France Tdf Procede et dispositif pour supprimer le brouillage d'un canal de diffusion de television analogique par les signaux de television numerique transmis dans un canal adjacent
US7844214B2 (en) * 2002-03-02 2010-11-30 Nokia Corporation System and method for broadband digital broadcasting
US7266159B2 (en) * 2002-03-08 2007-09-04 Andrew Corporation Frequency-dependent magnitude pre-distortion on non-baseband input signals for reducing spurious emissions in communication networks
US7197085B1 (en) 2002-03-08 2007-03-27 Andrew Corporation Frequency-dependent magnitude pre-distortion for reducing spurious emissions in communication networks
US6741840B2 (en) * 2002-03-13 2004-05-25 Motorola, Inc. RF transmitters with saturation detection and correction and methods therefor
US7738551B2 (en) * 2002-03-18 2010-06-15 International Business Machines Corporation System and method for processing a high definition television (HDTV) image
US7043681B2 (en) 2002-05-03 2006-05-09 Ibiquity Digital Corporation Digital audio broadcasting method and apparatus using complementary pattern-mapped convolutional codes
US7139327B2 (en) * 2002-06-10 2006-11-21 Andrew Corporation Digital pre-distortion of input signals for reducing spurious emissions in communication networks
US7058034B2 (en) 2002-09-09 2006-06-06 Nokia Corporation Phase shifted time slice transmission to improve handover
US20040057400A1 (en) * 2002-09-24 2004-03-25 Nokia Corporation Anti-synchronous radio channel slicing for smoother handover and continuous service reception
US7230651B2 (en) * 2002-10-22 2007-06-12 Broadcom Corporation A/V decoder having a clocking scheme that is independent of input data streams
US7139319B2 (en) * 2003-04-03 2006-11-21 The Boeing Company Wireless RF link for uncompressed transmission of HDTV signals
US7535965B2 (en) * 2003-04-03 2009-05-19 The Boeing Company Systems and methods for wireless transmission of uncompressed HDTV signals
US6759974B1 (en) * 2003-05-20 2004-07-06 Northrop Grumman Corporation Encoder and decoder for data transfer in superconductor circuits
US7582092B2 (en) * 2003-06-25 2009-09-01 Depuy Products, Inc. Assembly tool for modular implants and associated method
US7297166B2 (en) * 2003-06-25 2007-11-20 Depuy Products, Inc. Assembly tool for modular implants and associated method
US8998919B2 (en) 2003-06-25 2015-04-07 DePuy Synthes Products, LLC Assembly tool for modular implants, kit and associated method
US7251293B2 (en) * 2003-06-27 2007-07-31 Andrew Corporation Digital pre-distortion for the linearization of power amplifiers with asymmetrical characteristics
US20050009523A1 (en) * 2003-07-07 2005-01-13 Nokia Corporation Protocol using forward error correction to improve handover
KR101018381B1 (ko) * 2003-07-15 2011-03-02 삼성전자주식회사 수신 성능이 향상된 디지털 방송 송/수신 시스템 및 그의신호처리방법
KR20050008431A (ko) * 2003-07-15 2005-01-21 삼성전자주식회사 수신 성능이 향상된 디지털 방송 송/수신 시스템 및 그의신호처리방법
JP3808849B2 (ja) * 2003-08-08 2006-08-16 株式会社東芝 クロック信号再生回路とクロック復元フィルタ回路
US7298396B2 (en) * 2003-08-25 2007-11-20 Spx Corporation Apparatus and method for monitoring transmission systems using embedded test signals
JP3841077B2 (ja) * 2003-10-17 2006-11-01 ソニー株式会社 デジタル変調回路およびデジタル変調方法、デジタル復調回路およびデジタル復調方法、復調用キャリアの生成回路および生成方法、並びに復調用ビットクロックの生成回路および生成方法
JP2005151462A (ja) * 2003-11-19 2005-06-09 Pioneer Electronic Corp ストリームデータ送信機、ストリームデータ送信方法、ストリームデータ受信機及びストリームデータ受信方法並びにストリームデータ通信システム及びストリームデータ送受信方法。
KR100546398B1 (ko) * 2003-11-25 2006-01-26 삼성전자주식회사 압축된 오디오 비트스트림에서 싱크 워드를 찾는 방법 및상기 방법을 기록한 기록 매체
US7477700B2 (en) * 2004-02-27 2009-01-13 Harris Corporation Transmitting RF signals employing improved high-level combinations of analog FM and digital signals
US7415089B2 (en) * 2004-03-16 2008-08-19 Industrial Technology Research Institute High-speed serial link clock and data recovery
US7660583B2 (en) * 2004-03-19 2010-02-09 Nokia Corporation Advanced handover in phased-shifted and time-sliced networks
US7538825B2 (en) * 2004-08-31 2009-05-26 Sanyo Electric Co., Ltd. Wireless redistribution system for terrestrial digital television broadcasting
CN101147397B (zh) * 2004-09-17 2011-06-15 塔特公司 用于产生ntsc电视广播信号的系统和方法
US7443213B2 (en) * 2005-01-21 2008-10-28 Thomson Licensing Staged locking of two phase locked loops
KR101307323B1 (ko) * 2005-03-02 2013-09-10 로오데운트쉬바르츠게엠베하운트콤파니카게 동기 잔류측파대 프레임 슬라이싱을 이용한 ａｔｓｃ네트워크의 인핸스먼트 제공을 위한 장치, 그 시스템, 및그 방법
US7512175B2 (en) * 2005-03-16 2009-03-31 Ibiquity Digital Corporation Method for synchronizing exporter and exciter clocks
US20060242683A1 (en) * 2005-04-22 2006-10-26 Medford Brad A Methods and apparatus to manage advanced television system committee video in broadcast switched digital video systems
US8352979B2 (en) * 2005-04-22 2013-01-08 At&T Intellectual Property I, L.P. Methods and apparatus to broadcast advanced television system committee video in switched digital video systems
US7664553B2 (en) * 2005-04-27 2010-02-16 Cardiac Pacemakers, Inc. System and method for enabling communications with implantable medical devices
WO2007024648A2 (en) * 2005-08-25 2007-03-01 Nms Communications Corporation Methods and apparatus for differential encoding
CN1937759B (zh) * 2005-10-31 2010-08-11 康佳集团股份有限公司 一种随路密钥数字电视信号加密系统
WO2007100184A1 (en) * 2006-02-28 2007-09-07 Lg Electronics Inc. Digital broadcasting system and method of processing data
US20070281626A1 (en) * 2006-06-05 2007-12-06 Dobosz Paul J Vehicle telematics satellite data transceiver utilizing fm radio circuitry
US8005166B2 (en) * 2006-11-14 2011-08-23 Samsung Electronics Co., Ltd. System for digital television broadcasting using modified 2/3 trellis coding
US7535311B2 (en) * 2006-11-30 2009-05-19 Infineon Technologies Ag Direct wideband modulation of a frequency synthesizer
MX2009007049A (es) 2007-02-01 2009-08-13 Rohde & Schwarz Sistemas, aparatos, metodos y productos de programa de computadora para proporcionar interoperabilidad atsc.
WO2008097027A1 (en) 2007-02-07 2008-08-14 Lg Electronics Inc. Digital broadcasting system and method of processing data
KR101314614B1 (ko) * 2007-02-07 2013-10-07 엘지전자 주식회사 디지털 방송 시스템 및 데이터 처리 방법
KR101221914B1 (ko) * 2007-04-06 2013-01-15 엘지전자 주식회사 디지털 방송 신호 송신 장치 및 방법
US7656236B2 (en) 2007-05-15 2010-02-02 Teledyne Wireless, Llc Noise canceling technique for frequency synthesizer
KR20100051613A (ko) * 2007-06-28 2010-05-17 삼성전자주식회사 Atsc 모바일 / 핸드헬드 rfp a-vsb mcast 응답 및 단일 주파수 네트워크와 공존하는 a-vsb 물리 및 링크 계층
CN101350709B (zh) * 2007-07-20 2011-01-05 华为技术有限公司 块、帧同步方法及装置
TWI372564B (en) * 2007-10-30 2012-09-11 Av Tech Corp Video system, image emission apparatus, video receiver apparatus and control method
US8556912B2 (en) 2007-10-30 2013-10-15 DePuy Synthes Products, LLC Taper disengagement tool
US8518050B2 (en) 2007-10-31 2013-08-27 DePuy Synthes Products, LLC Modular taper assembly device
JP4970221B2 (ja) 2007-11-16 2012-07-04 株式会社東芝 省電力制御装置及び方法
CN101442651B (zh) * 2007-11-21 2011-04-20 陞泰科技股份有限公司 视讯系统、影像发射装置、视讯接收装置以及其控制方法
DE102008017290A1 (de) * 2007-12-11 2009-06-18 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur Bildung eines gemeinsamen Datenstroms insbesondere nach dem ATSC-Standard
US8655296B2 (en) * 2007-12-18 2014-02-18 Harris Corporation Frequency synthesizer and related method for generating wideband signals
CN101217522A (zh) * 2007-12-27 2008-07-09 华为技术有限公司 确定开环预失真参数的方法和装置、发信机和发信方法
JP2009246668A (ja) * 2008-03-31 2009-10-22 Fujitsu Ltd クロック再生装置及び再生方法並びに伝送装置及び中継通信システム
US8179045B2 (en) 2008-04-22 2012-05-15 Teledyne Wireless, Llc Slow wave structure having offset projections comprised of a metal-dielectric composite stack
DE102008056703A1 (de) 2008-07-04 2010-01-07 Rohde & Schwarz Gmbh & Co. Kg Verfahren und System zur Zeitsynchronisierung zwischen einer Zentrale und mehreren Sendern
US8355458B2 (en) * 2008-06-25 2013-01-15 Rohde & Schwarz Gmbh & Co. Kg Apparatus, systems, methods and computer program products for producing a single frequency network for ATSC mobile / handheld services
US8195118B2 (en) 2008-07-15 2012-06-05 Linear Signal, Inc. Apparatus, system, and method for integrated phase shifting and amplitude control of phased array signals
DE102008059028B4 (de) * 2008-10-02 2021-12-02 Rohde & Schwarz GmbH & Co. Kommanditgesellschaft Verfahren und Vorrichtung zur Erzeugung eines Transportdatenstroms mit Bilddaten
EP2342854B1 (de) * 2008-11-06 2013-01-30 Rohde & Schwarz GmbH & Co. KG Verfahren und system zur synchronisierten abbildung von datenpaketen in einem atsc-datenstrom
KR101172792B1 (ko) * 2008-11-26 2012-08-20 한국방송공사 방송 시스템에서 부가 정보 삽입 장치 및 방법
FR2940559A1 (fr) 2008-12-22 2010-06-25 Commissariat Energie Atomique Dispositif de reduction des distorsions temporelles induites dans des impulsions lumineuses par un systeme convertisseur de frequence optique non lineaire
EP2234357B1 (de) * 2009-03-21 2016-07-27 Rohde & Schwarz GmbH & Co. KG Verfahren zur Verbesserung der Übertragungsgeschwindigkeit von Mobilfunkdaten und der Qualität der Kanalschätzung in einem ATSC-M/H-Transportdatenstrom
MY154335A (en) * 2009-08-21 2015-05-29 Aviat Networks Inc Synchronization distribution in microwave backhaul networks
CN101651534B (zh) * 2009-09-17 2012-04-18 北京海尔集成电路设计有限公司 一种数据帧同步方法及其设备
DE102009057363B4 (de) * 2009-10-16 2013-04-18 Rohde & Schwarz Gmbh & Co. Kg Verfahren und Vorrichtung zur effizienten Übertragung von überregional und regional auszustrahlenden Programm-und Servicedaten
US8872719B2 (en) 2009-11-09 2014-10-28 Linear Signal, Inc. Apparatus, system, and method for integrated modular phased array tile configuration
US8433578B2 (en) * 2009-11-30 2013-04-30 At&T Intellectual Property I, L.P. System and method for automatically generating a dialog manager
US8446992B2 (en) 2010-01-22 2013-05-21 Harris Corporation Digital exciter having pilot signal compensation
US8533921B2 (en) 2010-06-15 2013-09-17 DePuy Synthes Products, LLC Spiral assembly tool
ITRM20100339A1 (it) * 2010-06-22 2011-12-23 Albino Benedettini "apparato ad antenna omnidirezionale per digitale terrestre"
US9095452B2 (en) 2010-09-01 2015-08-04 DePuy Synthes Products, Inc. Disassembly tool
US8989021B2 (en) 2011-01-20 2015-03-24 Rohde & Schwarz Gmbh & Co. Kg Universal broadband broadcasting
CN106943216B (zh) 2011-04-06 2019-12-31 德普伊新特斯产品有限责任公司 植入修正髋关节假体的器械组件
US8711976B2 (en) 2011-05-12 2014-04-29 Andrew Llc Pre-distortion architecture for compensating non-linear effects
US9306504B2 (en) * 2011-12-14 2016-04-05 Qualcomm Incorporated Waveform shaping for audio amplifiers
EP2856692A4 (de) * 2012-05-31 2016-01-06 Intel Corp Datenschnittstellensynchronisation
US9202660B2 (en) 2013-03-13 2015-12-01 Teledyne Wireless, Llc Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
US9525542B2 (en) * 2013-07-02 2016-12-20 Viavi Solutions Deutschland Synchronization to upstream bursts
DE102013110795A1 (de) * 2013-09-30 2015-04-02 Intel IP Corporation Antennenmodul und Verfahren zur drahtlosen Kommunikation
US10763905B1 (en) 2019-06-07 2020-09-01 Micron Technology, Inc. Wireless devices and systems including examples of mismatch correction scheme
US11411565B2 (en) 2020-01-06 2022-08-09 Stmicroelectronics International N.V. Clock and data recovery circuit
US10972139B1 (en) 2020-04-15 2021-04-06 Micron Technology, Inc. Wireless devices and systems including examples of compensating power amplifier noise with neural networks or recurrent neural networks
CN111522759B (zh) * 2020-04-16 2021-10-01 山东智岩探测科技有限公司 多路同步串行数据总线转换为并行数据总线的装置及方法
US11496341B2 (en) 2020-08-13 2022-11-08 Micron Technology, Inc. Wireless devices and systems including examples of compensating I/Q imbalance with neural networks or recurrent neural networks
CN114548169B (zh) * 2022-02-21 2023-04-21 电子科技大学 一种任意波形发生器输出幅频响应校正方法
KR20240071845A (ko) 2022-11-16 2024-05-23 주식회사 로젠시스 위상 고정 루프를 이용한 초고속 데이터 송수신용 트랜스미터

Family Cites Families (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3747111A (en) 1971-09-21 1973-07-17 J Fletcher Composite antenna feed
US3984624A (en) * 1974-07-25 1976-10-05 Weston Instruments, Inc. Video system for conveying digital and analog information
US4012742A (en) 1975-12-29 1977-03-15 International Telephone And Telegraph Corporation Multimode loop antenna
US4249214A (en) * 1979-03-23 1981-02-03 Rca Corporation Exciter having incidental phase correction compensation in consonance with output power level
US5675388A (en) * 1982-06-24 1997-10-07 Cooper; J. Carl Apparatus and method for transmitting audio signals as part of a television video signal
US4554514A (en) * 1984-12-21 1985-11-19 Rca Corporation Predistortion circuit with feedback
US4945549A (en) * 1986-11-13 1990-07-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Trellis coded modulation for transmission over fading mobile satellite channel
US4821097A (en) * 1987-03-05 1989-04-11 General Instrument Corporation Apparatus and method for providing digital audio on the sound carrier of a standard television signal
GB2204202B (en) * 1987-04-28 1991-11-27 Racal Communications Equip Radio transmitters
FR2631180B1 (fr) * 1988-05-05 1991-03-29 Schlumberger Ind Sa Generateur bi-standard de transposition de frequence, en particulier pour reseau maille de television
US5023889A (en) * 1988-05-31 1991-06-11 California Institute Of Technology Trellis coded multilevel DPSK system with doppler correction for mobile satellite channels
US5053860A (en) * 1988-10-03 1991-10-01 North American Philips Corp. Method and apparatus for the transmission and reception multicarrier high definition television signal
US4879519A (en) * 1988-10-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Labs Predistortion compensated linear amplifier
US5291290A (en) 1989-05-08 1994-03-01 Pesa Micro Communications, Inc. High power broadcast transmission system with ferrite circulator
FR2649570B1 (fr) * 1989-07-04 1991-09-20 Thomson Composants Microondes Systeme de reception de signaux t.v. retransmis par satellites
US4943783A (en) * 1989-07-31 1990-07-24 Nippon Telegraph And Telephone Corporation Feed forward distortion correction circuit
US4958230A (en) * 1989-08-11 1990-09-18 General Electric Company Method of transmitting auxiliary information in a television signal
US5063446A (en) * 1989-08-11 1991-11-05 General Electric Company Apparatus for transmitting auxiliary signal in a TV channel
US5038404A (en) * 1989-09-01 1991-08-06 General Instrument Corp. Low phase noise agile up converter
US4992754B1 (en) * 1989-09-07 1997-10-28 Ortel Corp Predistorter for linearization of electronic and optical signals
US5357284A (en) * 1990-03-29 1994-10-18 Dolby Laboratories Licensing Corporation Compatible digital audio for NTSC television
US5049832A (en) * 1990-04-20 1991-09-17 Simon Fraser University Amplifier linearization by adaptive predistortion
US5164963A (en) * 1990-11-07 1992-11-17 At&T Bell Laboratories Coding for digital transmission
US5291289A (en) * 1990-11-16 1994-03-01 North American Philips Corporation Method and apparatus for transmission and reception of a digital television signal using multicarrier modulation
US5394440A (en) * 1991-02-06 1995-02-28 General Datacomm, Inc. High speed modem systems incorporating distribution preserving Tomlinson encoding and decoding for secondary channels
EP0577672B1 (de) * 1991-03-28 1998-07-22 BRITISH TELECOMMUNICATIONS public limited company TCM-Schema mit nichtganzzahligen Datenraten, Rahmensignalen und Konstellationsumformung
US5617148A (en) * 1991-06-14 1997-04-01 Wavephore, Inc. Filter by-pass for transmitting an additional signal with a video signal
US5172231A (en) * 1991-07-16 1992-12-15 Electronics Missiles & Communications, Inc. S-band video signal transmitter
US5598220A (en) * 1991-07-18 1997-01-28 Zenith Electronics Corporation Digital signal with multilevel symbols and sync recognition
FR2686209A1 (fr) 1992-01-15 1993-07-16 Thomson Lgt Station de diffusion de television multistandard, tv conventionnelle et tv haute definition, pour reseau hertzien terrestre.
US5327245A (en) * 1992-02-11 1994-07-05 Information Transmission Systems Corp. Method and apparatus for combining adjacent channel television signals
US5363408A (en) * 1992-03-24 1994-11-08 General Instrument Corporation Mode selective quadrature amplitude modulation communication system
US5450392A (en) * 1992-05-01 1995-09-12 General Instrument Corporation Reduction of interchannel harmonic distortions in an analog and digital signal multiplex
KR950005765Y1 (ko) * 1992-05-19 1995-07-20 이헌조 디지탈 텔레비젼의 수직동기 발생장치
GB9212151D0 (en) * 1992-06-09 1992-07-22 British Broadcasting Corp Signal processing with active devices to reduce inter-modulation products
GB2268656B (en) * 1992-07-03 1995-10-18 British Broadcasting Corp Synchronising signal separator
DE4226494A1 (de) * 1992-08-11 1994-02-17 Sel Alcatel Ag Schaltungsanordnung zur frequenzabhängigen Kompensation des Klirrens zweiter Ordnung in einem Übertragungssystem
US5774193A (en) * 1992-10-05 1998-06-30 Vaughan; Thomas J. Digital television (HDTV) and analog television (NTSC) broadcast systems combined for simultaneous broadcast
DE4240226C2 (de) * 1992-11-30 1996-12-12 Deutsche Forsch Luft Raumfahrt Verfahren zum digitalen Übertragen von hierarchischen HDTV-, EDTV- und SDTV-Fernsehsignalen
US5412426A (en) * 1993-04-16 1995-05-02 Harris Corporation Multiplexing of digitally encoded NTSC and HDTV signals over single microwave communication link from television studio to tower transmitter facility for simultaneous broadcast (simulcast) to customer sites by transmitter facility
US5548615A (en) * 1993-05-03 1996-08-20 At&T Corp. Methods and apparatus for rotationally invariant multilevel coding
JP3420613B2 (ja) * 1993-06-30 2003-06-30 日本無線株式会社 直交変調器
KR960007250B1 (ko) * 1993-08-06 1996-05-29 홍태식 유리조각을 이용한 무늬 조명등 커버유리의 제조방법
US5461426A (en) * 1993-08-20 1995-10-24 Samsung Electronics Co., Ltd. Apparatus for processing modified NTSC television signals, with digital signals buried therewithin
EP0656712A1 (de) * 1993-11-16 1995-06-07 AT&T Corp. Viterbi-Entzerrer mit "Traceback" variabler länge
US5583562A (en) * 1993-12-03 1996-12-10 Scientific-Atlanta, Inc. System and method for transmitting a plurality of digital services including imaging services
US5563664A (en) * 1994-01-05 1996-10-08 Samsung Electronics Co., Ltd. Pre-frame-comb as well as pre-line-comb partial-response filtering of BPSK buried in a TV signal
US5448299A (en) * 1994-01-05 1995-09-05 Samsung Electronics Co., Ltd. Apparatus for processing BPSK signals transmitted with NTSC TV on quadrature-phase video carrier
US5452015A (en) * 1994-02-10 1995-09-19 Philips Electronics North America Corporation Method and apparatus for combating co-channel NTSC interference for digital TV transmission
JPH07245635A (ja) * 1994-03-04 1995-09-19 Sony Corp 信号点マッピング方法および信号点検出方法
US5398073A (en) * 1994-04-12 1995-03-14 At&T Corp. Concatenated coded vestigial sideband modulation for high definition television
US5621471A (en) * 1994-05-03 1997-04-15 Microsoft Corporation System and method for inserting and recovering an add-on data signal for transmission with a video signal
US5539471A (en) * 1994-05-03 1996-07-23 Microsoft Corporation System and method for inserting and recovering an add-on data signal for transmission with a video signal
US6104442A (en) * 1994-06-28 2000-08-15 Samsung Electronics Co., Ltd. Radio receiver for receiving both VSB and QAM digital HDTV signals
EP0803162A4 (de) * 1994-06-15 2000-09-13 Rca Thomson Licensing Corp Synchronisation eines digitalen datenstrompackets zu einem ausgangsprozessor in einem fernsehsignalverarbeitungssystem
CA2157958C (en) * 1994-10-11 2000-01-18 Lee-Fang Wei Trellis coded modulation employing lower dimensionality convolutional encoder
JP2746152B2 (ja) * 1994-11-07 1998-04-28 日本電気株式会社 歪補償回路
KR0137558B1 (ko) * 1994-12-19 1998-05-15 양승택 엠피이지-2(mpeg-2) 역다중화기
US5642285A (en) * 1995-01-31 1997-06-24 Trimble Navigation Limited Outdoor movie camera GPS-position and time code data-logging for special effects production
US5659353A (en) * 1995-03-17 1997-08-19 Bell Atlantic Network Services, Inc. Television distribution system and method
JPH08312352A (ja) * 1995-05-15 1996-11-26 Yamaha Motor Co Ltd 燃料噴射式内燃機関
US5574496A (en) 1995-06-07 1996-11-12 Zenith Electronics Corporation Techniques for minimizing co-channel interference in a received ATV signal
US5619269A (en) * 1995-06-07 1997-04-08 Zenith Electronics Corporation Frame sync signal for digital transmission system
JPH0993152A (ja) 1995-09-25 1997-04-04 Alps Electric Co Ltd ダブルコンバージョンテレビチューナ
KR970057729A (ko) * 1995-12-30 1997-07-31 배순훈 그랜드 얼라이언스 고화질 텔레비젼 수신 장치
US5732333A (en) * 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
FR2746563B1 (fr) * 1996-03-22 1998-06-05 Matra Communication Procede pour corriger des non-linearites d'un amplificateur, et emetteur radio mettant en oeuvre un tel procede
US5760646A (en) * 1996-03-29 1998-06-02 Spectrian Feed-forward correction loop with adaptive predistortion injection for linearization of RF power amplifier
US6115427A (en) * 1996-04-26 2000-09-05 At&T Corp. Method and apparatus for data transmission using multiple transmit antennas
US5781069A (en) * 1996-05-16 1998-07-14 Xemod, Inc. Pre-post distortion amplifier
US5764195A (en) 1996-07-24 1998-06-09 Hazeltine Corporation UHF/VHF multifunction ocean antenna system
US5898338A (en) * 1996-09-20 1999-04-27 Spectrian Adaptive digital predistortion linearization and feed-forward correction of RF power amplifier
JPH10145161A (ja) * 1996-11-13 1998-05-29 Nec Corp プリディストーション自動調整回路
US5850162A (en) * 1997-02-20 1998-12-15 Harris Corporation Linearization of an amplifier employing modified feedforward correction
KR100230275B1 (ko) * 1997-02-21 1999-11-15 윤종용 고해상도 텔레비젼 수신기의 tcm 복호기 및 그 복호방법
US5946047A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network system for handling digital data over a TV channel
US5946048A (en) * 1997-03-12 1999-08-31 Hybrid Networks, Inc. Network device for handling digital data over a TV channel
US6549242B1 (en) * 1997-04-04 2003-04-15 Harris Corporation Combining adjacent TV channels for transmission by a common antenna
US5917373A (en) * 1997-06-30 1999-06-29 Harris Corporation Apparatus with reduced A/D dynamic range requirement in a compensating feedback system
US6054895A (en) * 1997-08-27 2000-04-25 Harris Corporation Apparatus and method for pre-distortion correction of a power amplifier stage
US5909253A (en) * 1997-12-09 1999-06-01 Sarnoff Corporation Reducing video crosstalk in a data carrier located within a vestigial sideband of a standard television signal
US5943012A (en) * 1998-05-01 1999-08-24 Tci/Br Communication, Inc. Method and apparatus for exciting a television antenna using orthogonal modes
US6122015A (en) * 1998-12-07 2000-09-19 General Electric Company Method and apparatus for filtering digital television signals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112136277A (zh) * 2018-05-22 2020-12-25 美光科技公司 包含补偿功率放大器噪声的实例的无线装置及系统
CN112136277B (zh) * 2018-05-22 2022-05-24 美光科技公司 包含补偿功率放大器噪声的实例的无线装置及系统

Also Published As

Publication number Publication date
CA2233247A1 (en) 1998-10-04
JPH10304258A (ja) 1998-11-13
AU5949498A (en) 1998-10-08
TW391140B (en) 2000-05-21
CA2232759A1 (en) 1998-10-04
AU6068198A (en) 1998-10-08
JPH10290168A (ja) 1998-10-27
EP0869672B1 (de) 2003-05-21
JPH10290179A (ja) 1998-10-27
KR100488192B1 (ko) 2005-09-02
EP0869666A2 (de) 1998-10-07
EP0869674A1 (de) 1998-10-07
TW412908B (en) 2000-11-21
EP0869650B1 (de) 2005-02-02
DE69828835D1 (de) 2005-03-10
US6055021A (en) 2000-04-25
US6281935B1 (en) 2001-08-28
EP0869672A1 (de) 1998-10-07
EP0869673A3 (de) 1998-12-23
CA2233269C (en) 2006-05-09
US6400415B1 (en) 2002-06-04
US6166774A (en) 2000-12-26
KR19980081105A (ko) 1998-11-25
CN1210423A (zh) 1999-03-10
CA2233235C (en) 2006-08-22
CA2233245C (en) 2006-05-09
CA2233235A1 (en) 1998-10-04
EP0869670A1 (de) 1998-10-07
CA2233213C (en) 2006-01-03
US6335766B1 (en) 2002-01-01
JPH10303873A (ja) 1998-11-13
DE69828835T2 (de) 2006-01-12
CA2233462A1 (en) 1998-10-04
CA2233269A1 (en) 1998-10-04
JPH10313429A (ja) 1998-11-24
TW369775B (en) 1999-09-11
CA2233233A1 (en) 1998-10-04
CA2232758A1 (en) 1998-10-04
CA2233213A1 (en) 1998-10-04
EP0869650A3 (de) 1998-12-02
TW369776B (en) 1999-09-11
EP0869673A2 (de) 1998-10-07
AU757250B2 (en) 2003-02-13
CA2233233C (en) 2006-01-03
KR100488234B1 (ko) 2005-07-07
KR19980081106A (ko) 1998-11-25
US6549242B1 (en) 2003-04-15
DE69814730T2 (de) 2003-11-20
KR100545454B1 (ko) 2006-10-19
KR100545453B1 (ko) 2006-05-09
KR100574605B1 (ko) 2006-10-19
TW376651B (en) 1999-12-11
JPH10304259A (ja) 1998-11-13
US6185255B1 (en) 2001-02-06
CA2232758C (en) 2005-11-22
EP0869666A3 (de) 1998-12-02
EP0869675A3 (de) 1999-01-07
KR19980081108A (ko) 1998-11-25
EP0869650A2 (de) 1998-10-07
CA2233462C (en) 2004-10-26
EP0869675A2 (de) 1998-10-07
US6269125B1 (en) 2001-07-31
EP0869671A1 (de) 1998-10-07
CA2233245A1 (en) 1998-10-04
KR19980081107A (ko) 1998-11-25
KR19980081104A (ko) 1998-11-25

Similar Documents

Publication Publication Date Title
DE69814730D1 (de) Vorentzerrungsschaltung für einen RF Verstärker
NO20006602D0 (no) Forsterkerkrets
EE9900618A (et) Impedantssobitusahel võimsusvõimendi jaoks
DE69942880D1 (de) Hochfrequenzverstärker
DE69625430D1 (de) Verstärkerschaltung für CMOS-Operationsverstärker
DE69820392D1 (de) Hochfrequenzschaltung
DE69729365D1 (de) Signalverstärkerschaltung
DE69721478D1 (de) Eingangsspeiseschaltung für feldinstrument
DE60036776D1 (de) Verstärkerschaltung
DE59105864D1 (de) Modulationseinrichtung für einen Hf-Leistungsverstärker.
DE69824662D1 (de) Hochspannungstrennschaltung für einen Messkanal
DE69942265D1 (de) Signalverstärkerschaltung
DE69933619D1 (de) Hochfrequenzmodul
DE69834756D1 (de) Eingangsschaltung für eine integrierte Schaltung
DE59508817D1 (de) Schaltungsanordnung zur Kapazitätsverstärkung
DE69418644D1 (de) Verstärkeranordnungen für einen integrierten Schaltkreis
DE60027989D1 (de) Leistungsverstärkersystem für ein Antennensystem
DE69937870D1 (de) Mehrfacheingangsdifferenzverstärkerschaltung
DE60012868D1 (de) Schaltungsplatte für Hochspannungseinsatz
DE69718280D1 (de) Hochfrequenzverstärker
GB9906026D0 (en) An amplifier circuit arrangement
DE59909431D1 (de) Schaltungsanordnung für einen verstellbaren Hochpass
DE60127453D1 (de) Verstärkerschaltung für am-rundfunk
DK0904619T3 (da) Kredsløb til spændingsompoling
DE69802654D1 (de) Vorspannungsschaltung für Spannungsreferenzschaltung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee