MX9604225A - Detector de fase en una red de recuperacion de portadora para una señal de banda lateral vestigial. - Google Patents

Detector de fase en una red de recuperacion de portadora para una señal de banda lateral vestigial.

Info

Publication number
MX9604225A
MX9604225A MX9604225A MX9604225A MX9604225A MX 9604225 A MX9604225 A MX 9604225A MX 9604225 A MX9604225 A MX 9604225A MX 9604225 A MX9604225 A MX 9604225A MX 9604225 A MX9604225 A MX 9604225A
Authority
MX
Mexico
Prior art keywords
carrier recovery
recovery network
input signal
signal
phase detector
Prior art date
Application number
MX9604225A
Other languages
English (en)
Other versions
MXPA96004225A (es
Inventor
Christopher Hugh Strolle
Steven Todd Jaffe
Original Assignee
Rca Thomson Licensing 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 Rca Thomson Licensing Corp filed Critical Rca Thomson Licensing Corp
Publication of MX9604225A publication Critical patent/MX9604225A/es
Publication of MXPA96004225A publication Critical patent/MXPA96004225A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/04—Systems for the transmission of one television signal, i.e. both picture and sound, by a single carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
    • H04L7/0278—Band edge detection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/24—Homodyne or synchrodyne circuits for demodulation of signals wherein one sideband or the carrier has been wholly or partially suppressed
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H04L25/0305—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure using blind adaptation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using blind adaptation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/067—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing soft decisions, i.e. decisions together with an estimate of reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H04L27/066—Carrier recovery circuits
    • 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
    • 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
    • H04N5/211—Ghost signal cancellation
    • 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
    • H04N5/455—Demodulation-circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/03382—Single of vestigal sideband
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms
    • H04L2025/0363—Feature restoration, e.g. constant modulus

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Systems (AREA)

Abstract

Un receptor de señal de television para procesar una señal de television de alta definicion transmitida en un formato de banda lateral vestigial (VSB) con una constelacion de datos de una dimension incluye una primera red de recuperacion de portadora (18), un compensador (20), y una segunda red de recuperacion de portadora (22, 30, 62). Una red cuantificadora de multiples etapas (50, 66), que exhibe una resolucion progresivamente más fina, está asociada con la operacion del compensador para proporcionar una compensacion ciega sin necesidad de una señal de "entretenimiento". La segunda red de recuperacion de portadora incluye un detector de fase (30), en donde se multiplican (316) una señal de entrada retrasada por un símbolo (312) y una señal de entrada cuantificada (310), y se multiplican (318) una señal de entrada no cuantificada y una señal de entrada cuantificada (310) retrasada por un símbolo (314). Las señales producidas por la multiplicacion se combinan de una manera sustractiva (320) para producir una señal de salida que representa el error de fase de la portadora.
MXPA/A/1996/004225A 1994-03-21 1995-03-13 Detector de fase en una red de recuperacion deportadora para una señal de banda lateralvestigial MXPA96004225A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9405487A GB9405487D0 (en) 1994-03-21 1994-03-21 VSB demodulator
GB9405487.1 1994-03-21
PCT/US1995/003133 WO1995026105A1 (en) 1994-03-21 1995-03-13 Phase detector in a carrier recovery network for a vestigial sideband signal

Publications (2)

Publication Number Publication Date
MX9604225A true MX9604225A (es) 1998-05-31
MXPA96004225A MXPA96004225A (es) 1998-10-23

Family

ID=

Also Published As

Publication number Publication date
JP4044132B2 (ja) 2008-02-06
TW285807B (es) 1996-09-11
GB9405487D0 (en) 1994-05-04
CN1059992C (zh) 2000-12-27
KR100339110B1 (ko) 2002-10-25
BR9507070A (pt) 1997-09-09
CN1144580A (zh) 1997-03-05
EP0752185A4 (en) 1998-10-21
WO1995026101A1 (en) 1995-09-28
JP3651895B2 (ja) 2005-05-25
TW265505B (es) 1995-12-11
KR100357355B1 (ko) 2003-01-15
MY114158A (en) 2002-08-30
MX9604220A (es) 1998-05-31
CN1144589A (zh) 1997-03-05
DE69532170D1 (de) 2003-12-24
JP3649735B2 (ja) 2005-05-18
EP0752173B1 (en) 2007-05-09
TW256978B (en) 1995-09-11
JPH09510841A (ja) 1997-10-28
CN1085467C (zh) 2002-05-22
CN1071525C (zh) 2001-09-19
MX9604223A (es) 1998-05-31
EP0801866B1 (en) 2003-11-19
EP0801866A4 (en) 1998-10-21
WO1995026074A1 (en) 1995-09-28
EP0801866A1 (en) 1997-10-22
CN1057885C (zh) 2000-10-25
TW306112B (es) 1997-05-21
KR970702661A (ko) 1997-05-13
DE69527419T2 (de) 2003-02-27
EP0752172A4 (en) 1998-10-21
KR100384210B1 (ko) 2003-08-19
DE69527419D1 (de) 2002-08-22
EP0752172A1 (en) 1997-01-08
CN1146267A (zh) 1997-03-26
JPH09510840A (ja) 1997-10-28
CN1144579A (zh) 1997-03-05
KR970702617A (ko) 1997-05-13
KR100361723B1 (ko) 2003-02-14
MY115343A (en) 2003-05-31
EP0752172B1 (en) 2003-05-21
JPH09510839A (ja) 1997-10-28
WO1995026105A1 (en) 1995-09-28
EP0752173A1 (en) 1997-01-08
WO1995026075A1 (en) 1995-09-28
DE69530839D1 (de) 2003-06-26
MY115172A (en) 2003-04-30
DE69532170T2 (de) 2004-08-26
MX9604224A (es) 1998-05-31
DE69535494D1 (de) 2007-06-21
BR9507202A (pt) 1997-09-02
KR970701970A (ko) 1997-04-12
KR970701943A (ko) 1997-04-12
JP3651896B2 (ja) 2005-05-25
EP0752185A1 (en) 1997-01-08
JPH09510842A (ja) 1997-10-28
MY114086A (en) 2002-08-30
EP0752185B1 (en) 2002-07-17
DE69535494T2 (de) 2008-01-10
EP0752173A4 (en) 1998-10-21

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