CA1230673A - Chroma signal amplitude control apparatus - Google Patents

Chroma signal amplitude control apparatus

Info

Publication number
CA1230673A
CA1230673A CA000493659A CA493659A CA1230673A CA 1230673 A CA1230673 A CA 1230673A CA 000493659 A CA000493659 A CA 000493659A CA 493659 A CA493659 A CA 493659A CA 1230673 A CA1230673 A CA 1230673A
Authority
CA
Canada
Prior art keywords
signal
burst
values
predetermined
gain
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
Application number
CA000493659A
Other languages
English (en)
French (fr)
Inventor
Thomas V. Bolger
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
Application granted granted Critical
Publication of CA1230673A publication Critical patent/CA1230673A/en
Expired 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)
CA000493659A 1984-10-24 1985-10-23 Chroma signal amplitude control apparatus Expired CA1230673A (en)

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
US664,332 1984-10-24

Publications (1)

Publication Number Publication Date
CA1230673A true CA1230673A (en) 1987-12-22

Family

ID=24665559

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000493659A Expired CA1230673A (en) 1984-10-24 1985-10-23 Chroma signal amplitude control apparatus

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
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
JPH0575237B2 (https=) 1993-10-20
GB2166310B (en) 1988-07-20

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Legal Events

Date Code Title Description
MKEX Expiry