DE3676149D1 - Korrektion von zeitbasisfehlern in fernsehsignalen. - Google Patents

Korrektion von zeitbasisfehlern in fernsehsignalen.

Info

Publication number
DE3676149D1
DE3676149D1 DE8686307401T DE3676149T DE3676149D1 DE 3676149 D1 DE3676149 D1 DE 3676149D1 DE 8686307401 T DE8686307401 T DE 8686307401T DE 3676149 T DE3676149 T DE 3676149T DE 3676149 D1 DE3676149 D1 DE 3676149D1
Authority
DE
Germany
Prior art keywords
analog
frequency
digital
signal
sampling 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
DE8686307401T
Other languages
English (en)
Inventor
Steven D Wagner
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Application granted granted Critical
Publication of DE3676149D1 publication Critical patent/DE3676149D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/89—Time-base error compensation
    • H04N9/896—Time-base error compensation using a digital memory with independent write-in and read-out clock generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)
  • Processing Of Color Television Signals (AREA)
  • Picture Signal Circuits (AREA)
  • Electric Clocks (AREA)
  • Television Systems (AREA)
DE8686307401T 1985-09-27 1986-09-25 Korrektion von zeitbasisfehlern in fernsehsignalen. Expired - Lifetime DE3676149D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/781,293 US4675724A (en) 1985-09-27 1985-09-27 Video signal phase and frequency correction using a digital off-tape clock generator

Publications (1)

Publication Number Publication Date
DE3676149D1 true DE3676149D1 (de) 1991-01-24

Family

ID=25122280

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686307401T Expired - Lifetime DE3676149D1 (de) 1985-09-27 1986-09-25 Korrektion von zeitbasisfehlern in fernsehsignalen.

Country Status (6)

Country Link
US (1) US4675724A (de)
EP (1) EP0217647B1 (de)
JP (1) JPH0691670B2 (de)
AT (1) ATE59125T1 (de)
CA (1) CA1275497C (de)
DE (1) DE3676149D1 (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860089A (en) * 1987-04-10 1989-08-22 Ampex Corporation Apparatus and method for tracking the subcarrier to horizontal sync of a color television signal
JP2548210B2 (ja) * 1987-07-21 1996-10-30 松下電器産業株式会社 時間軸補正装置
JP2655650B2 (ja) * 1987-08-18 1997-09-24 三菱電機株式会社 時間軸補正装置
US4989073A (en) * 1987-11-25 1991-01-29 Ampex Corporation System for compensating timing errors during sampling of signals
US4847678A (en) * 1988-01-11 1989-07-11 Eastman Kodak Company Dual mode gen-lock system which automatically locks to color burst or to sync information
JP2656288B2 (ja) * 1988-02-29 1997-09-24 株式会社東芝 位相検波回路
US5097364A (en) * 1988-12-12 1992-03-17 Mitsubishi Denki Kabushiki Kaisha Magnetic recording and reproducing apparatus and method of recording and reproducing
US5745314A (en) * 1989-09-27 1998-04-28 Canon Kabushiki Kaisha Clock generating circuit by using the phase difference between a burst signal and the oscillation signal
US5325093A (en) * 1991-05-08 1994-06-28 Sony Corporation Analog-to-digital converter for composite video signals
JP2734806B2 (ja) * 1991-06-04 1998-04-02 松下電器産業株式会社 カラーバースト信号位相誤差検出回路
US5459524A (en) * 1991-11-18 1995-10-17 Cooper; J. Carl Phase modulation demodulator apparatus and method
US5379077A (en) * 1991-12-12 1995-01-03 Brooktree Corporation System for and method of, operating upon NTSC and PAL signals
US5495202A (en) * 1993-06-30 1996-02-27 Hughes Aircraft Company High spectral purity digital waveform synthesizer
KR0134309B1 (ko) * 1994-03-11 1998-04-23 김광호 디지탈 주파수 자동조절회로
US5790566A (en) * 1994-08-31 1998-08-04 Hughes Electronics Method and device for depuncturing data
US5566189A (en) * 1994-08-31 1996-10-15 Hughes Aircraft Co. Method and device for puncturing data
US5600379A (en) * 1994-10-13 1997-02-04 Yves C. Faroudia Television digital signal processing apparatus employing time-base correction
US6836295B1 (en) 1995-12-07 2004-12-28 J. Carl Cooper Audio to video timing measurement for MPEG type television systems
US6380980B1 (en) * 1997-08-25 2002-04-30 Intel Corporation Method and apparatus for recovering video color subcarrier signal
US7365796B1 (en) 2003-05-20 2008-04-29 Pixelworks, Inc. System and method for video signal decoding using digital signal processing
US7304688B1 (en) 2003-05-20 2007-12-04 Pixelworks, Inc. Adaptive Y/C separator
US7532254B1 (en) 2003-05-20 2009-05-12 Pixelworks, Inc. Comb filter system and method
US7420625B1 (en) 2003-05-20 2008-09-02 Pixelworks, Inc. Fuzzy logic based adaptive Y/C separation system and method
US7605867B1 (en) 2003-05-20 2009-10-20 Pixelworks, Inc. Method and apparatus for correction of time base errors
US7701512B1 (en) 2003-05-20 2010-04-20 Pixelworks, Inc. System and method for improved horizontal and vertical sync pulse detection and processing
JP4679872B2 (ja) * 2004-10-13 2011-05-11 パナソニック株式会社 クロック発生装置
KR20060091655A (ko) * 2005-02-16 2006-08-21 삼성전자주식회사 영상 신호 주사방법 및 장치
US7649569B2 (en) * 2005-05-24 2010-01-19 Texas Instruments Incorporated Time base correction in video systems
US9369263B1 (en) 2015-06-30 2016-06-14 International Business Machines Corporation Calibration of sampling phase and aperature errors in multi-phase sampling systems

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578902A (en) * 1968-08-28 1971-05-18 Rca Corp Apparatus for synchronized generation of a signal from a composite color video signal subjected to signal perturbations
US4107736A (en) * 1971-12-20 1978-08-15 Image Transform, Inc. Noise reduction system for video signals
US3860952B2 (en) * 1973-07-23 1996-05-07 Harris Corp Video time base corrector
US4212027A (en) * 1974-04-25 1980-07-08 Ampex Corporation Time base compensator
US4018990A (en) * 1975-02-13 1977-04-19 Consolidated Video Systems, Inc. Digital video synchronizer
JPS5821872B2 (ja) * 1975-02-17 1983-05-04 ソニー株式会社 パルスハツセイカイロ
US4081826A (en) * 1975-05-15 1978-03-28 Sony Corporation Video time base corrector
JPS51147121A (en) * 1975-06-12 1976-12-17 Sony Corp Clock pulse generator
US4109276A (en) * 1976-03-19 1978-08-22 Rca Corporation Memory read/write organization for a television signal processor
US4120000A (en) * 1976-07-08 1978-10-10 Sony Corporation Video time base corrector
US4119999A (en) * 1977-01-28 1978-10-10 Ampex Corporation Apparatus for inserting a digital sync word, phase-synchronized to the color subcarrier, in place of the horizontal sync signal
JPS53148317A (en) * 1977-05-31 1978-12-23 Sony Corp Error correction unit for time axis
JPS6043707B2 (ja) * 1978-03-08 1985-09-30 株式会社東京放送 位相変換装置
US4373168A (en) * 1979-03-30 1983-02-08 Nippon Electric Co., Ltd. Digital time-base corrector having a wide correction range
US4291332A (en) * 1980-04-10 1981-09-22 Tokyo Shibaura Denki Kabushiki Kaisha Phase-locked circuit
US4404531A (en) * 1980-06-05 1983-09-13 Motorola, Inc. Frequency scanning apparatus wherein a single knob controls both step size and direction of change
JPS57106285A (en) * 1980-12-22 1982-07-02 Sony Corp Time base collector
JPS5835703A (ja) * 1981-08-24 1983-03-02 Asahi Optical Co Ltd 記録情報の再生装置
DE3136522A1 (de) 1981-09-15 1983-03-24 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur digitalen regelung der phase des systemtaktes eines digitalen signalverarbeitungssystems
US4563657A (en) * 1982-03-15 1986-01-07 Codex Corporation Frequency synthesizer and digital phase lock loop
US4463371A (en) * 1982-05-28 1984-07-31 Rca Corporation Clock generation apparatus for a digital television system
JPS6080387A (ja) * 1983-10-11 1985-05-08 Sony Corp カラ−ビデオ信号のデイジタル化回路
US4612568A (en) * 1984-11-05 1986-09-16 Rca Corporation Burst-to-line-locked clock digital video signal sample rate conversion apparatus
US4633298A (en) * 1984-11-30 1986-12-30 Rca Corporation Digitally controlled phase locked loop system having coarse and fine locking modes

Also Published As

Publication number Publication date
ATE59125T1 (de) 1990-12-15
JPS6277792A (ja) 1987-04-09
CA1275497C (en) 1990-10-23
EP0217647A3 (en) 1989-05-10
JPH0691670B2 (ja) 1994-11-14
EP0217647B1 (de) 1990-12-12
EP0217647A2 (de) 1987-04-08
US4675724A (en) 1987-06-23

Similar Documents

Publication Publication Date Title
DE3676149D1 (de) Korrektion von zeitbasisfehlern in fernsehsignalen.
ATE91832T1 (de) Phasenregelkreissystem.
DE3786938D1 (de) Pll-stabilisierungsschaltung.
ES8407633A1 (es) Perfeccionamientos introducidos en un aparato de conversion de analogico a digital en un receptor de television
FI871245A (fi) Stabiliseringskrets foer en digital faslaost slinga.
BR9305988A (pt) Demodulator para usos de consumidor
EP0373750A3 (de) Schaltung zur Erzeugung eines phasenverschobenen Signals
GB1419817A (en) Reducing or eliminating timing errors in a colour video signal derived from a record
DE69114411D1 (de) Schaltung zur Erzeugung eines Taktsignals, das auf einer spezifischen Phase eines in einem Videosignal enthaltenen Farbsynchronsignals synchronisiert ist.
EP0395347A3 (de) System zur Wiedergewinnung der Abtastfrequenz
FI861268A0 (fi) Avlaenkningssystem med dubbel slinga.
FI870294A0 (fi) Avstaemningssystem foer en television med automatisk finavstaemning.
YU137588A (en) Digital time extractor of phase locked loop for bipolar signals
DE3870856D1 (de) Digitalschaltung eines videobandrecorders.
DE3373768D1 (en) Analog to digital converting system for a video signal
GB1484280A (en) System for recording and reproducing a colour television signal
GB2247590A (en) Correcting burst phase when replaying a recorded colour signal
KR910016209A (ko) 영상 신호의 시간차 보정 장치
JPS647556B2 (de)
EP0251722A3 (de) Digitales Filter für eine Zeitbasis-Fehlerkorrekturschleife eines Videoplattenspielers
KR910005536Y1 (ko) 비데오신호 디코딩회로
JPS5730484A (en) Compensation system for speed error of reproduced video signal
JPS6449495A (en) System for controlling sampling clock phase
JPS642484A (en) Clock synchronizing circuit of sampling rate converting circuit
JPS5789388A (en) Color video signal recording system and recording and reproducing system

Legal Events

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