FR2369765A1 - Systeme de reglage automatique du gain des circuits de traitement de signaux de chrominance - Google Patents

Systeme de reglage automatique du gain des circuits de traitement de signaux de chrominance

Info

Publication number
FR2369765A1
FR2369765A1 FR7732113A FR7732113A FR2369765A1 FR 2369765 A1 FR2369765 A1 FR 2369765A1 FR 7732113 A FR7732113 A FR 7732113A FR 7732113 A FR7732113 A FR 7732113A FR 2369765 A1 FR2369765 A1 FR 2369765A1
Authority
FR
France
Prior art keywords
gain adjustment
coupled
amplifier
chrominance signal
amplifiers
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
FR7732113A
Other languages
English (en)
French (fr)
Other versions
FR2369765B1 (enExample
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 FR2369765A1 publication Critical patent/FR2369765A1/fr
Application granted granted Critical
Publication of FR2369765B1 publication Critical patent/FR2369765B1/fr
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)
FR7732113A 1976-10-28 1977-10-25 Systeme de reglage automatique du gain des circuits de traitement de signaux de chrominance Granted FR2369765A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/736,419 US4054905A (en) 1976-10-28 1976-10-28 Automatic chrominance gain control system

Publications (2)

Publication Number Publication Date
FR2369765A1 true FR2369765A1 (fr) 1978-05-26
FR2369765B1 FR2369765B1 (enExample) 1983-07-22

Family

ID=24959780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7732113A Granted FR2369765A1 (fr) 1976-10-28 1977-10-25 Systeme de reglage automatique du gain des circuits de traitement de signaux de chrominance

Country Status (14)

Country Link
US (1) US4054905A (enExample)
JP (1) JPS5354922A (enExample)
AT (1) AT374996B (enExample)
AU (1) AU506512B2 (enExample)
BE (1) BE860191A (enExample)
CA (1) CA1083708A (enExample)
DE (1) DE2748532C3 (enExample)
ES (1) ES463657A1 (enExample)
FI (1) FI62610C (enExample)
FR (1) FR2369765A1 (enExample)
GB (1) GB1587287A (enExample)
NL (1) NL186213C (enExample)
NZ (1) NZ185547A (enExample)
SE (1) SE438073B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5675788A (en) * 1979-11-26 1981-06-23 Sony Corp Processing circuit for chroma signal
JPS5752288A (en) * 1980-09-11 1982-03-27 Sanyo Electric Co Ltd Color gain variable circuit
US4630102A (en) * 1984-10-10 1986-12-16 Rca Corporation Digital chroma overload system
US4962417A (en) * 1988-05-12 1990-10-09 Rca Licensing Corporation Chroma overload detector using a differential amplifier
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
US7545937B2 (en) * 2001-12-12 2009-06-09 Thomson Licensing Chrominance processing arrangement having immunity to colorstripe encoding

Citations (2)

* 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
US3982273A (en) * 1975-05-27 1976-09-21 Rca Corporation Switching arrangement for flesh tone correction and chrominance overload control circuits

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5527755B2 (enExample) * 1973-03-20 1980-07-23

Patent Citations (2)

* 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
US3982273A (en) * 1975-05-27 1976-09-21 Rca Corporation Switching arrangement for flesh tone correction and chrominance overload control circuits

Also Published As

Publication number Publication date
JPS616589B2 (enExample) 1986-02-27
DE2748532B2 (de) 1979-12-06
NL186213C (nl) 1990-10-01
BE860191A (fr) 1978-02-15
DE2748532A1 (de) 1978-05-03
FI773137A7 (fi) 1978-04-29
SE7711847L (sv) 1978-04-29
FI62610C (fi) 1983-01-10
GB1587287A (en) 1981-04-01
AT374996B (de) 1984-06-25
FI62610B (fi) 1982-09-30
FR2369765B1 (enExample) 1983-07-22
AU506512B2 (en) 1980-01-10
AU2996677A (en) 1979-05-03
DE2748532C3 (de) 1980-08-14
CA1083708A (en) 1980-08-12
NZ185547A (en) 1980-11-14
JPS5354922A (en) 1978-05-18
NL7711801A (nl) 1978-05-03
ES463657A1 (es) 1978-07-16
SE438073B (sv) 1985-03-25
US4054905A (en) 1977-10-18
ATA774077A (de) 1983-10-15

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Legal Events

Date Code Title Description
TP Transmission of property