DE69738879D1 - Taktrückgewinnungssystem für einen digitalen Signalprozessor - Google Patents

Taktrückgewinnungssystem für einen digitalen Signalprozessor

Info

Publication number
DE69738879D1
DE69738879D1 DE69738879T DE69738879T DE69738879D1 DE 69738879 D1 DE69738879 D1 DE 69738879D1 DE 69738879 T DE69738879 T DE 69738879T DE 69738879 T DE69738879 T DE 69738879T DE 69738879 D1 DE69738879 D1 DE 69738879D1
Authority
DE
Germany
Prior art keywords
digital signal
signal processor
recovery system
clock recovery
clock
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 - Lifetime
Application number
DE69738879T
Other languages
German (de)
English (en)
Inventor
Paul Gothard Knutson
Kumar Ramaswamy
David Lowell Mcneely
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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 Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Application granted granted Critical
Publication of DE69738879D1 publication Critical patent/DE69738879D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/081—Details of the phase-locked loop provided with an additional controlled phase shifter
    • H03L7/0812—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used
    • H03L7/0814—Details of the phase-locked loop provided with an additional controlled phase shifter and where no voltage or current controlled oscillator is used the phase shifting device being digitally controlled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/002—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation
    • H04L7/0029—Arrangements for synchronising receiver with transmitter correction of synchronization errors correction by interpolation interpolation of received data signal
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L2207/00—Indexing scheme relating to automatic control of frequency or phase and to synchronisation
    • H03L2207/50—All digital phase-locked loop
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
    • 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
    • H03L7/08—Details of the phase-locked loop
    • H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
    • H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
    • H03L7/0994—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider comprising an accumulator
    • 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
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
    • H04L7/0335—Gardner detector
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Synchronizing For Television (AREA)
  • Details Of Television Systems (AREA)
DE69738879T 1996-02-27 1997-02-20 Taktrückgewinnungssystem für einen digitalen Signalprozessor Expired - Lifetime DE69738879D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1233996P 1996-02-27 1996-02-27
US08/721,780 US5943369A (en) 1996-02-27 1996-09-25 Timing recovery system for a digital signal processor

Publications (1)

Publication Number Publication Date
DE69738879D1 true DE69738879D1 (de) 2008-09-18

Family

ID=26683446

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69738879T Expired - Lifetime DE69738879D1 (de) 1996-02-27 1997-02-20 Taktrückgewinnungssystem für einen digitalen Signalprozessor

Country Status (10)

Country Link
US (1) US5943369A (enExample)
EP (1) EP0793363B1 (enExample)
JP (2) JP4212067B2 (enExample)
KR (1) KR100812554B1 (enExample)
CN (1) CN1157904C (enExample)
BR (1) BR9700851B1 (enExample)
DE (1) DE69738879D1 (enExample)
ID (1) ID16554A (enExample)
MY (1) MY114450A (enExample)
SG (1) SG64965A1 (enExample)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998012836A1 (en) * 1996-09-20 1998-03-26 Thomson Consumer Electronics, Inc. Component timing recovery system for qam
US6421396B1 (en) * 1997-04-16 2002-07-16 Broadcom Corporation Variable rate modulator
TW371758B (en) * 1997-06-04 1999-10-11 Siemens Ag Method to optimize the signal-propagation-time in a reprogrammable switching circuit and reprogrammable switching circuit with program-code optimized in said signal-propagation time
GB2331210A (en) * 1997-09-12 1999-05-12 Daewoo Electronics Co Ltd Timing recovery in vestigial sideband modulation
US6144712A (en) * 1997-10-09 2000-11-07 Broadcom Corporation Variable rate modulator
US6128357A (en) * 1997-12-24 2000-10-03 Mitsubishi Electric Information Technology Center America, Inc (Ita) Data receiver having variable rate symbol timing recovery with non-synchronized sampling
JP3363768B2 (ja) * 1997-12-26 2003-01-08 株式会社ケンウッド ディジタル復調器
US6351293B1 (en) * 1998-05-18 2002-02-26 Sarnoff Corporation Decision directed phase detector
US6381291B1 (en) * 1998-09-28 2002-04-30 Harris Corporation Phase detector and method
KR100324749B1 (ko) * 1998-10-09 2002-03-13 구자홍 최대 가능성 심볼 타이밍 복원기
US6563862B1 (en) * 1998-10-21 2003-05-13 Thomson Licensing Sa Digital variable symbol rate modulation
US6370160B1 (en) * 1998-12-29 2002-04-09 Thomson Licensing S. A. Base to handset epoch synchronization in multi-line wireless telephone
DE60030801T2 (de) * 1999-05-11 2007-09-06 Koninklijke Philips Electronics N.V. Übertragungssystem und Empfänger mit Vorrichtung zur Dezimation
KR100346783B1 (ko) * 1999-07-19 2002-08-01 한국전자통신연구원 보간 필터를 사용한 타이밍 복원장치 및 방법
US7039139B1 (en) * 1999-07-21 2006-05-02 Honeywell International Inc. System for increasing digital data demodulator synchronization timing resolution using training sequence correlation values
US6480535B1 (en) * 1999-07-26 2002-11-12 Sony Corporation Generating multi-channel outputs simultaneously in a receiver using polyphase filter
US6545532B1 (en) * 1999-09-08 2003-04-08 Atmel Corporation Timing recovery circuit in a QAM demodulator
US6600495B1 (en) 2000-01-10 2003-07-29 Koninklijke Philips Electronics N.V. Image interpolation and decimation using a continuously variable delay filter and combined with a polyphase filter
DE10002964A1 (de) * 2000-01-25 2001-07-26 Philips Corp Intellectual Pty Anordnung zur Filterung digitaler Daten
US6816328B2 (en) 2000-06-20 2004-11-09 Infineon Technologies North America Corp. Pseudo-synchronous interpolated timing recovery for a sampled amplitude read channel
EP1233568B1 (en) * 2000-10-11 2008-01-16 NTT Electronics Corporation Phase comparator circuit
US6993104B2 (en) * 2001-04-27 2006-01-31 Adtran, Inc. Apparatus and method for adaptively adjusting a timing loop
US6775341B2 (en) 2001-11-30 2004-08-10 Motorola, Inc. Time recovery circuit and method for synchronizing timing of a signal in a receiver to timing of the signal in a transmitter
US20030149907A1 (en) * 2001-12-26 2003-08-07 Singh Chandra Mauli Method and apparatus for uplink clock extraction in a communication system
KR101105129B1 (ko) * 2003-01-17 2012-01-16 톰슨 라이센싱 고정 레이트 샘플링 모드에서 동기식 샘플링 설계를사용하기 위한 방법
US7450655B2 (en) * 2003-07-22 2008-11-11 Intel Corporation Timing error detection for a digital receiver
DE10334064B3 (de) * 2003-07-25 2005-04-14 Infineon Technologies Ag Verfahren und Schaltungsanordnung zum Kalibrieren eines den Abtastzeitpunkt eines Empfangssignals beeinflussenden Abtastungssteuersignales eines Abtastphasenauswahlelements
KR100752735B1 (ko) * 2006-04-10 2007-08-28 삼성전기주식회사 패킷기반 무선통신의 타이밍 위상 오차 검출 시스템 및 그검출 방법
US8045670B2 (en) * 2007-06-22 2011-10-25 Texas Instruments Incorporated Interpolative all-digital phase locked loop
GB0815458D0 (en) * 2008-08-26 2008-10-01 Zarlink Semiconductor Inc Method of transferring timing information over packet network
KR20160037656A (ko) * 2014-09-29 2016-04-06 삼성전자주식회사 에러 검출기 및 발진기의 에러 검출 방법
US11038602B1 (en) 2020-02-05 2021-06-15 Credo Technology Group Limited On-chip jitter evaluation for SerDes
US10992501B1 (en) 2020-03-31 2021-04-27 Credo Technology Group Limited Eye monitor for parallelized digital equalizers
US10892763B1 (en) * 2020-05-14 2021-01-12 Credo Technology Group Limited Second-order clock recovery using three feedback paths
US20240106688A1 (en) * 2022-09-28 2024-03-28 Texas Instruments Incorporated Joint Timing Recovery and Decision Feedback Equalizer Adaptation in Wireline Network Receivers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4707841A (en) * 1984-08-21 1987-11-17 University Of Toronto, Innovations Foundation Digital data receiver for preamble free data transmission
JPH04104542A (ja) * 1990-08-23 1992-04-07 Fujitsu Ltd ディジタル復調器
JP3067222B2 (ja) * 1991-02-22 2000-07-17 富士通株式会社 デイジタル復調器
JP3267657B2 (ja) * 1992-03-10 2002-03-18 富士通株式会社 ディジタル通信における復調方式
US5400368A (en) * 1993-08-17 1995-03-21 Teknekron Communications Systems, Inc. Method and apparatus for adjusting the sampling phase of a digitally encoded signal in a wireless communication system
GB9405487D0 (en) * 1994-03-21 1994-05-04 Rca Thomson Licensing Corp VSB demodulator
US5588025A (en) * 1995-03-15 1996-12-24 David Sarnoff Research Center, Inc. Single oscillator compressed digital information receiver
US5696639A (en) * 1995-05-12 1997-12-09 Cirrus Logic, Inc. Sampled amplitude read channel employing interpolated timing recovery
US5671257A (en) * 1995-06-06 1997-09-23 Sicom, Inc. Symbol timing recovery based on complex sample magnitude
US5666170A (en) * 1995-07-12 1997-09-09 Thomson Consumer Electronics, Inc. Apparatus for decoding video signals encoded in different formats
US5717619A (en) * 1995-10-20 1998-02-10 Cirrus Logic, Inc. Cost reduced time varying fir filter

Also Published As

Publication number Publication date
HK1005396A1 (en) 1999-01-08
EP0793363A2 (en) 1997-09-03
JP2008301537A (ja) 2008-12-11
MY114450A (en) 2002-10-31
KR20070095473A (ko) 2007-10-01
EP0793363B1 (en) 2008-08-06
SG64965A1 (en) 1999-05-25
JP4212067B2 (ja) 2009-01-21
KR100812554B1 (ko) 2008-03-13
US5943369A (en) 1999-08-24
JPH09247569A (ja) 1997-09-19
CN1168027A (zh) 1997-12-17
CN1157904C (zh) 2004-07-14
BR9700851B1 (pt) 2009-08-11
BR9700851A (pt) 1998-09-01
EP0793363A3 (en) 2004-07-07
MX9701490A (es) 1998-06-30
JP4974247B2 (ja) 2012-07-11
ID16554A (id) 1997-10-16

Similar Documents

Publication Publication Date Title
DE69738879D1 (de) Taktrückgewinnungssystem für einen digitalen Signalprozessor
DE69624479D1 (de) Störspitzenfreies takt-freigabesignal
DE69721299D1 (de) Videosignalprozessor für verschiedene formate
EP0872069A4 (en) SYSTEM FOR TIMING A CLOCK SIGNAL
DE69535087D1 (de) Schaltungsanordnung zur Taktrückgewinnung
DE69330336D1 (de) Taktrückgewinnung für einen Demodulator
DE69421834D1 (de) Digitale Taktrückgewinnungsschaltung
DE69736736D1 (de) Analoger Prozessor für digitale Satelliten
DE69518715D1 (de) Empfangsgerät für digitale Signale
DE69818631D1 (de) Verstärkungsanordnung für digitale signale
DE69516779D1 (de) Detektor für digital modulierte Signale
DE3788407D1 (de) Diagnosesystem für einen digitalen Signalprozessor.
DE69737171D1 (de) Schaltung zur Taktrückgewinnung
DE69838740D1 (de) Digitalsignalwiedergabegerät
FI974380L (fi) Menetelmä digitaalisen audiosignaalin siirtämiseksi
IT240946Y1 (it) Sistema di aggancio di un bracciale a casse di orologi
DE69802426D1 (de) Taktschema für digitales signalprozessorsystem
DE69423038D1 (de) Aufzeichnungsgerät für digitale Signale
DE69508766D1 (de) Genauer digitaler, fehlertoleranter taktgeber
DE69030460D1 (de) Wiedergabegerät für ein digitales Signal
DE69329729D1 (de) Konditionsschaltung für ein Taktsignal
DE59510688D1 (de) Schaltungsanordnung für einen Lichtsignalempfänger
DE69524023D1 (de) Aufnahmevorrichtung für digitale Signale
DE69816883D1 (de) Verarbeitungsschaltung für Synchronisierungssignal
DE69614762D1 (de) Digitalsignalaufzeichnungsgerät

Legal Events

Date Code Title Description
8364 No opposition during term of opposition