KR910004288B1 - 디지탈 텔레비젼 수상기용 자동 색도 제어 시스템 - Google Patents

디지탈 텔레비젼 수상기용 자동 색도 제어 시스템 Download PDF

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Publication number
KR910004288B1
KR910004288B1 KR1019830001093A KR830001093A KR910004288B1 KR 910004288 B1 KR910004288 B1 KR 910004288B1 KR 1019830001093 A KR1019830001093 A KR 1019830001093A KR 830001093 A KR830001093 A KR 830001093A KR 910004288 B1 KR910004288 B1 KR 910004288B1
Authority
KR
South Korea
Prior art keywords
signal
gain
color information
value
digital
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
KR1019830001093A
Other languages
English (en)
Korean (ko)
Other versions
KR840004651A (ko
Inventor
가턴 루이스 2세 헨리
마이클 에리스큐 스티븐
Original Assignee
알 씨 에이 코포레이션
글렌 에이취. 브르스틀
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 알 씨 에이 코포레이션, 글렌 에이취. 브르스틀 filed Critical 알 씨 에이 코포레이션
Publication of KR840004651A publication Critical patent/KR840004651A/ko
Application granted granted Critical
Publication of KR910004288B1 publication Critical patent/KR910004288B1/ko
Expired legal-status Critical Current

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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
    • 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
    • H04N9/70—Circuits for processing colour signals for colour killing
    • H04N9/71—Circuits for processing colour signals for colour killing combined with colour gain control
    • 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
    • H04N9/793—Processing of colour television signals in connection with recording for controlling the level of the chrominance signal, e.g. by means of automatic chroma control circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)
  • Color Television Systems (AREA)
KR1019830001093A 1982-03-18 1983-03-18 디지탈 텔레비젼 수상기용 자동 색도 제어 시스템 Expired KR910004288B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/359,433 US4447826A (en) 1982-03-18 1982-03-18 Digital television receiver automatic chroma control system
US359,433 1982-03-18

Publications (2)

Publication Number Publication Date
KR840004651A KR840004651A (ko) 1984-10-22
KR910004288B1 true KR910004288B1 (ko) 1991-06-25

Family

ID=23413773

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830001093A Expired KR910004288B1 (ko) 1982-03-18 1983-03-18 디지탈 텔레비젼 수상기용 자동 색도 제어 시스템

Country Status (11)

Country Link
US (1) US4447826A (enExample)
JP (1) JPH0669223B2 (enExample)
KR (1) KR910004288B1 (enExample)
AT (1) AT384705B (enExample)
AU (1) AU563598B2 (enExample)
CA (1) CA1195768A (enExample)
DE (1) DE3309680C3 (enExample)
ES (1) ES520501A0 (enExample)
FR (1) FR2523793B1 (enExample)
GB (1) GB2118800B (enExample)
IT (1) IT1167556B (enExample)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485396A (en) * 1982-09-16 1984-11-27 Ampex Corporation Automatic chroma filter
US4604645A (en) * 1983-09-30 1986-08-05 Rca Corporation Coarse/fine automatic chrominance gain control using a gain adjustable IF amplifier in a digital television receiver
US4573069A (en) * 1984-03-29 1986-02-25 Rca Corporation Chrominance fine gain control in a digital television receiver
US4602276A (en) * 1984-04-12 1986-07-22 Rca Corporation Digital signal level overload system
US4630102A (en) * 1984-10-10 1986-12-16 Rca Corporation Digital chroma overload system
US4635102A (en) * 1984-10-24 1987-01-06 Rca Corporation Chroma signal amplitude control apparatus
US4686560A (en) * 1986-05-30 1987-08-11 Rca Corporation Phase locked loop system including analog and digital components
US4731851A (en) * 1986-09-24 1988-03-15 Rca Corporation Digital signal gain control circuitry for varying digital signals in substantially equal db steps
FR2669170A1 (fr) * 1990-11-09 1992-05-15 Philips Electronics Nv Procede et dispositif pour le reglage de niveau de signaux video dans un appareil de reception de television.
JPH06243580A (ja) * 1993-02-15 1994-09-02 Hitachi Ltd Ａｇｃ回路
US6177962B1 (en) * 1999-06-30 2001-01-23 Thomson Licensing S.A. Apparatus and method for preventing oversaturation of chrominance signals

Family Cites Families (21)

* 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
JPS5534613B2 (enExample) * 1973-10-08 1980-09-08
US3943560A (en) * 1974-05-10 1976-03-09 General Electric Company Picture level control with compatible automatic chroma control
US3983381A (en) * 1974-12-18 1976-09-28 International Business Machines Corporation Digital automatic gain control circuit
IT1050574B (it) * 1975-07-01 1981-03-20 Indesit Perfezionamenti di sistemi di televisione a colori
JPS587117B2 (ja) * 1975-10-01 1983-02-08 ソニー株式会社 イロシンゴウシヨリカイロ
IT1055629B (it) * 1975-10-09 1982-01-11 Indesit Controllo automatico della saturazione in un ricevitore di televisione a colori
US4021652A (en) * 1975-12-11 1977-05-03 Northern Electric Company Limited Incrementally adjustable digital attenuator/amplifier
US4240106A (en) * 1976-10-14 1980-12-16 Micro Consultants, Limited Video noise reduction
US4240113A (en) * 1976-10-14 1980-12-16 Micro Consultants, Limited Picture manipulation in video systems
JPS5418102U (enExample) * 1977-07-08 1979-02-06
US4213097A (en) * 1978-10-19 1980-07-15 Racal-Milgo, Inc. Hybrid automatic gain control circuit
DE2854236C2 (de) * 1978-12-15 1982-06-09 Deutsche Itt Industries Gmbh, 7800 Freiburg Farbfernsehempfänger mit mindestens teilweise digitaler Signalverarbeitung und mit mindestens einer integrierten Schaltung für das Luminanzsignal und die Chrominanzsignale
US4191995A (en) * 1979-01-02 1980-03-04 Bell Telephone Laboratories, Incorporated Digital automatic gain control circuit
GB2042294B (en) * 1979-02-06 1983-08-17 Emi Ltd Automatic gain control
GB2052898B (en) * 1979-06-25 1983-09-28 Tokyo Shibaura Electric Co Digitally controlled signal level adjusting apparatus
US4272648A (en) * 1979-11-28 1981-06-09 International Telephone And Telegraph Corporation Gain control apparatus for digital telephone line circuits
EP0051075B1 (de) * 1980-10-30 1984-08-29 Deutsche ITT Industries GmbH Farbfernsehempfänger mit mindestens einer digitalen integrierten Schaltung zur Verarbeitung des Farb-Bild-Austast-Synchronsignal-Gemisches
US4396938A (en) * 1981-07-23 1983-08-02 Rca Corporation Controlled ram signal processor
US4415918A (en) * 1981-08-31 1983-11-15 Rca Corporation Digital color television signal demodulator
DE3136216A1 (de) * 1981-09-12 1983-03-31 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zum regeln der amplitude des farbsignals

Also Published As

Publication number Publication date
ATA96683A (de) 1987-05-15
GB2118800A (en) 1983-11-02
ES8403684A1 (es) 1984-03-16
IT1167556B (it) 1987-05-13
DE3309680C2 (enExample) 1992-05-14
JPH0669223B2 (ja) 1994-08-31
ES520501A0 (es) 1984-03-16
US4447826A (en) 1984-05-08
AU563598B2 (en) 1987-07-16
JPS58170291A (ja) 1983-10-06
KR840004651A (ko) 1984-10-22
IT8320004A0 (it) 1983-03-10
AU1239083A (en) 1983-09-22
GB8307377D0 (en) 1983-04-27
FR2523793B1 (fr) 1989-08-18
CA1195768A (en) 1985-10-22
IT8320004A1 (it) 1984-09-10
FR2523793A1 (fr) 1983-09-23
AT384705B (de) 1987-12-28
DE3309680A1 (de) 1983-10-06
DE3309680C3 (de) 1996-06-20
GB2118800B (en) 1986-04-03

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