JPS61103389A - クロミナンス信号振幅制御装置 - Google Patents

クロミナンス信号振幅制御装置

Info

Publication number
JPS61103389A
JPS61103389A JP60238540A JP23854085A JPS61103389A JP S61103389 A JPS61103389 A JP S61103389A JP 60238540 A JP60238540 A JP 60238540A JP 23854085 A JP23854085 A JP 23854085A JP S61103389 A JPS61103389 A JP S61103389A
Authority
JP
Japan
Prior art keywords
signal
value
gain
counter
attenuation
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.)
Granted
Application number
JP60238540A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0575237B2 (https=
Inventor
トーマス　ビンセント　ボルガー
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.)
RCA Corp
Original Assignee
RCA 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 Corp filed Critical RCA Corp
Publication of JPS61103389A publication Critical patent/JPS61103389A/ja
Publication of JPH0575237B2 publication Critical patent/JPH0575237B2/ja
Granted 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
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
JP60238540A 1984-10-24 1985-10-23 クロミナンス信号振幅制御装置 Granted JPS61103389A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/664,332 US4635102A (en) 1984-10-24 1984-10-24 Chroma signal amplitude control apparatus
US664332 1984-10-24

Publications (2)

Publication Number Publication Date
JPS61103389A true JPS61103389A (ja) 1986-05-21
JPH0575237B2 JPH0575237B2 (https=) 1993-10-20

Family

ID=24665559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60238540A Granted JPS61103389A (ja) 1984-10-24 1985-10-23 クロミナンス信号振幅制御装置

Country Status (10)

Country Link
US (1) US4635102A (https=)
JP (1) JPS61103389A (https=)
KR (1) KR930011972B1 (https=)
CN (1) CN1003625B (https=)
AU (1) AU591639B2 (https=)
CA (1) CA1230673A (https=)
DE (1) DE3537746C2 (https=)
FR (1) FR2572236B1 (https=)
GB (1) GB2166310B (https=)
HK (1) HK90493A (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703340A (en) * 1986-05-02 1987-10-27 Rca Corporation Frequency division multiplexed analog to digital converter
US5063580A (en) * 1990-05-07 1991-11-05 Thomson Consumer Electronics, Inc. Apparatus for conditioning a control signal
US6188788B1 (en) * 1997-12-09 2001-02-13 Texas Instruments Incorporated Automatic color saturation control in video decoder using recursive algorithm
FR2778054B1 (fr) 1998-04-23 2000-07-07 Sgs Thomson Microelectronics Dispositif de regulation de l'amplitude du signal chrominance
US6177962B1 (en) 1999-06-30 2001-01-23 Thomson Licensing S.A. Apparatus and method for preventing oversaturation of chrominance signals
US6947099B2 (en) * 2000-12-21 2005-09-20 Thomson Licensing Automatic chroma control circuit with controlled saturation reduction

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3740462A (en) * 1972-04-10 1973-06-19 Rca Corp Automatic chroma gain control system
US3764734A (en) * 1972-06-07 1973-10-09 Gte Sylvania Inc Automatic peak color control
JPS5527755B2 (https=) * 1973-03-20 1980-07-23
US3943560A (en) * 1974-05-10 1976-03-09 General Electric Company Picture level control with compatible automatic chroma control
US4106054A (en) * 1977-01-19 1978-08-08 Zenith Radio Corporation Automatic chroma level system
US4106055A (en) * 1977-07-05 1978-08-08 Gte Sylvania Incorporated Automatic color level control system with threshold tracking
US4183047A (en) * 1977-12-08 1980-01-08 General Electric Company Chroma level stabilizer
JPS604637B2 (ja) * 1980-06-02 1985-02-05 日本ビクター株式会社 テレビジヨンカメラにおける自動白色調節回路
JPS56128084A (en) * 1980-03-12 1981-10-07 Hitachi Ltd Color signal gain control circuit
DE3123038A1 (de) * 1981-06-10 1982-12-30 Siemens AG, 1000 Berlin und 8000 München Verfahren und anordnung zur regelung des digitalen chrominanzssignales eines farbfernsehempfaengers
US4434439A (en) * 1982-02-22 1984-02-28 Rca Corporation Digital television AGC arrangement
US4502078A (en) * 1982-02-22 1985-02-26 Rca Corporation Digital television receivers
US4447826A (en) * 1982-03-18 1984-05-08 Rca Corporation Digital television receiver automatic chroma control system
US4602276A (en) * 1984-04-12 1986-07-22 Rca Corporation Digital signal level overload system

Also Published As

Publication number Publication date
GB2166310A (en) 1986-04-30
US4635102A (en) 1987-01-06
FR2572236B1 (fr) 1988-10-28
AU591639B2 (en) 1989-12-14
CN85108289A (zh) 1986-08-27
FR2572236A1 (fr) 1986-04-25
DE3537746A1 (de) 1986-04-24
AU4881385A (en) 1986-05-01
KR860003740A (ko) 1986-05-28
CA1230673A (en) 1987-12-22
HK90493A (en) 1993-09-10
DE3537746C2 (de) 1995-10-12
CN1003625B (zh) 1989-03-15
KR930011972B1 (ko) 1993-12-23
GB8525643D0 (en) 1985-11-20
JPH0575237B2 (https=) 1993-10-20
GB2166310B (en) 1988-07-20

Similar Documents

Publication Publication Date Title
KR100276369B1 (ko) 화상성분 분석을 이용한 비선형 영상 신호 프로세서
EP0222508B1 (en) Video level control
GB2102651A (en) Noise reduction system for color television signal
GB2256770A (en) Monitoring noise in a video signal
EP0720391B1 (en) Digital processing apparatus
US4523223A (en) Method and apparatus for controlling the digital chrominance signals of a color television receiver
US7139035B2 (en) Video noise floor estimator with impulse noise detection
JPS61103389A (ja) クロミナンス信号振幅制御装置
CA1189960A (en) Television signal amplitude detection circuit
US4581642A (en) Televison noise reduction system for a signal source having variable picture repetition
KR950011820B1 (ko) 디지탈 비데오 신호의 주파수 스펙트럼의 고주파수 부분을 피킹하는 장치
EP0391643B1 (en) Digital signal clamp circuitry
JPH02223869A (ja) 雑音測定装置
US4217574A (en) Analog to digital converter having nonlinear amplitude transformation
CN110753195B (zh) 一种高稳定性的视频触发方法及数字示波器
EP0914747B1 (en) Black level detecting circuit of video signal
KR930011970B1 (ko) 색도 과부하 제어 시스템
GB2110490A (en) Adaptive analog-to-digital conversion method and system
EP0561253A1 (en) Method and apparatus for automatic loop control
JP3101852B2 (ja) テレビジョン画像信号変換装置
DE10013935B4 (de) Vorrichtung zum Erzeugen eines auf einen Referenztakt synchronisierten Taktsignals
JP2929920B2 (ja) レベルディテクタ回路
JPS6093891A (ja) テレビジヨン文字多重デ−タ・スライス回路
EP0596743A1 (en) Programmable HDTV format trigger
SU599374A1 (ru) Устройство стабилизации уровн "белого" в видеосигнале