JPH0575237B2 - - Google Patents

Info

Publication number
JPH0575237B2
JPH0575237B2 JP60238540A JP23854085A JPH0575237B2 JP H0575237 B2 JPH0575237 B2 JP H0575237B2 JP 60238540 A JP60238540 A JP 60238540A JP 23854085 A JP23854085 A JP 23854085A JP H0575237 B2 JPH0575237 B2 JP H0575237B2
Authority
JP
Japan
Prior art keywords
signal
gain
value
counter
chrominance
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
JP60238540A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61103389A (ja
Inventor
Binsento Borugaa Toomasu
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 Licensing Corp
Original Assignee
RCA 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 Licensing Corp filed Critical RCA Licensing 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 JPS61103389A (ja) 1986-05-21
JPH0575237B2 true 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
JPS61103389A (ja) 1986-05-21
KR930011972B1 (ko) 1993-12-23
GB8525643D0 (en) 1985-11-20
GB2166310B (en) 1988-07-20

Similar Documents

Publication Publication Date Title
US4242704A (en) Noise reduction system for color television signal
US4064530A (en) Noise reduction system for color television
EP0361452B1 (en) Digital automatic gain control apparatus and method
US5559559A (en) Transmitting a secondary signal with dynamic injection level control
US4819098A (en) Method and apparatus for clustering modifications made to a video signal to inhibit the making of acceptable videotape recordings
JPH0812979B2 (ja) 自動利得制御装置
EP0222508B1 (en) Video level control
US5661801A (en) Method and apparatus for stabilizing and brightening prerecorded TV signals encoded with copy protection
US4523223A (en) Method and apparatus for controlling the digital chrominance signals of a color television receiver
JPH0575237B2 (https=)
US4107739A (en) System utilizing integration and motion evaluation for reducing noise in video signal
EP0078976A2 (en) Dynamic video scrambling
CA1189960A (en) Television signal amplitude detection circuit
CA1169928A (en) Electrical data pulse processing
US3914536A (en) Identifier for a pulse code modulated signal
EP0914747B1 (en) Black level detecting circuit of video signal
US4630102A (en) Digital chroma overload system
GB2110490A (en) Adaptive analog-to-digital conversion method and system
JP2991549B2 (ja) 映像信号処理装置
JP4182262B2 (ja) 許容できるビデオテープ記録の作成を禁止するためビデオ信号に修正を加える方法及び装置
EP0833524A2 (en) Method and device for improving the picture reproduction quality in a wide-screen television receiver
JPS6093891A (ja) テレビジヨン文字多重デ−タ・スライス回路
JPS61102871A (ja) 画像ａ／ｄ変換回路
JP2585404B2 (ja) 可変等化器の増幅率設定装置
JPH0580865B2 (https=)