JPS57197986A - Color signal processing circuit - Google Patents

Color signal processing circuit

Info

Publication number
JPS57197986A
JPS57197986A JP8302681A JP8302681A JPS57197986A JP S57197986 A JPS57197986 A JP S57197986A JP 8302681 A JP8302681 A JP 8302681A JP 8302681 A JP8302681 A JP 8302681A JP S57197986 A JPS57197986 A JP S57197986A
Authority
JP
Japan
Prior art keywords
circuit
output
delay line
amplifier
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.)
Pending
Application number
JP8302681A
Other languages
Japanese (ja)
Inventor
Yutaka Nakagawa
Nobuhiro Hori
Tadashi Hasegawa
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8302681A priority Critical patent/JPS57197986A/en
Publication of JPS57197986A publication Critical patent/JPS57197986A/en
Pending 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
    • H04N9/642—Multi-standard receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE:To control automatically whether a chrominance signal of the PAL system is switched to be supplied to a 1H delay line and an adding and subtracting circuit or not, by providing a switching circuit consisting of two transistors (TRs) in a chrominance processing circuit common to the NTSC system and the PAL system. CONSTITUTION:A switching circuit 63 controlled by the output of a discriminating circuit 62 of the video signal system is provided between an amplifier 10 of a common processing circuit for chrominance signals of color video signal of the PAL system and the NTSC system and a delay line 64 having a delay quantity of one horizontal period as well as an adding and subtracting circuit 65 to which the output the delay line 64 is supplied. The switching circuit 63 is provided with a TR Q2, which receives the chrominance signal from the amplifier 10 by the base and supplies the collector output to the delay line 64 and supplies the emitter output to the adding and subtracting circuit 65, and a TR Q1 which receives the chrominance signal from the amplifier 10 and the output of the circuit 52 by the base and has the emitter connected to the emitter of the TR Q2 and has the collector grounded, thus controlling automatically whether the chrominance signal of the PAL system from the amplifier 10 is switched to be supplied to the delay line 64 and the adding and subtracting circuit 65 or not.
JP8302681A 1981-05-29 1981-05-29 Color signal processing circuit Pending JPS57197986A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8302681A JPS57197986A (en) 1981-05-29 1981-05-29 Color signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8302681A JPS57197986A (en) 1981-05-29 1981-05-29 Color signal processing circuit

Publications (1)

Publication Number Publication Date
JPS57197986A true JPS57197986A (en) 1982-12-04

Family

ID=13790719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8302681A Pending JPS57197986A (en) 1981-05-29 1981-05-29 Color signal processing circuit

Country Status (1)

Country Link
JP (1) JPS57197986A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658284A (en) * 1984-01-11 1987-04-14 Canon Kabushiki Kaisha Image forming apparatus
JPH06886U (en) * 1991-11-12 1994-01-11 古河電気工業株式会社 Rigid train line mount connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658284A (en) * 1984-01-11 1987-04-14 Canon Kabushiki Kaisha Image forming apparatus
JPH06886U (en) * 1991-11-12 1994-01-11 古河電気工業株式会社 Rigid train line mount connection

Similar Documents

Publication Publication Date Title
MY105520A (en) Audio switching for an audio/video system having s-video capability
MY111827A (en) Reproduction circuit for skin color in video signals
ES408321A1 (en) Brightness control
JPS5498529A (en) Chrominance signal processor for color television receiver
ES8401702A1 (en) Automatic video signal peaking and color control
JPS57197986A (en) Color signal processing circuit
GB1503612A (en) Arrangements for keying video signals
JPS6460088A (en) Automatic white balance control circuit
JPS57192190A (en) Processing circuit for chrominance signal
JPS5762680A (en) Display controller
GB1511932A (en) Video recording apparatus
JPS5526784A (en) Video amplifier
JPS5471945A (en) Crt dispaly unit
FR2399172A1 (en) Demodulator switching in SECAM colour TV - is provided by gating control signal with horizontal synchronising signal
JPS53126817A (en) Level controller of video signal
JPS6451887A (en) Video signal processor
ES2023319A6 (en) Circuit for selectively converting a color bar pattern
JPS57203382A (en) Signal dropout compensating device
JPS6489887A (en) Composite video signal output circuit
JPS57204692A (en) Delaying device
JPS5479520A (en) Switching unit of color television receiver
JPS57199387A (en) Color video signal recording system and reproducing system
JPS5679593A (en) Color television receiver
JPS6468070A (en) Clamping circuit
MY116344A (en) Color signal processing system for a color television receiver