JPS561683A - Color signal processing circuit - Google Patents

Color signal processing circuit

Info

Publication number
JPS561683A
JPS561683A JP7660079A JP7660079A JPS561683A JP S561683 A JPS561683 A JP S561683A JP 7660079 A JP7660079 A JP 7660079A JP 7660079 A JP7660079 A JP 7660079A JP S561683 A JPS561683 A JP S561683A
Authority
JP
Japan
Prior art keywords
circuit
color
amplifier
burst
signal
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
JP7660079A
Other languages
Japanese (ja)
Inventor
Yukio Okabe
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP7660079A priority Critical patent/JPS561683A/en
Publication of JPS561683A publication Critical patent/JPS561683A/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
    • H04N9/70—Circuits for processing colour signals for colour killing

Landscapes

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

Abstract

PURPOSE:To apply the input to the amplifier when the color broadcast is received and thus prevent occurrence of the color noise, by installing the input signal gate circuit which is controlled by the output of the color killer circuit and the burst gate pulse between the input terminal and the 1st amplifier. CONSTITUTION:Input signal gate circuit 8 is installed between carrier chrominance signal input terminal 1 and the 1st band amplifier 2, and the burst gate pulse sent from burst gate pulse input terminal 9 is applied to circuit 8 along with the output supplied from color killer circuit 7. Then circuit 8 is opened when the color broadcast is received, and the input signal is supplied directly to amplifier 2. While circuit 8 is opened only for the burst signal output period in the case of the black- and-white broadcast, and the input signal is supplied to amplifier 2 only for the signal output period in order to prepare for the color boradcast reception. Thus the burst signal is extracted in the burst gate period and simultaneously with switching to the color boradcast. and burst gate circuit 5 is actuated, and the 2nd band amplifier 3 is turned off via circuit 7. As a result, the occurrence of the color noise can be prevented.
JP7660079A 1979-06-18 1979-06-18 Color signal processing circuit Pending JPS561683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7660079A JPS561683A (en) 1979-06-18 1979-06-18 Color signal processing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7660079A JPS561683A (en) 1979-06-18 1979-06-18 Color signal processing circuit

Publications (1)

Publication Number Publication Date
JPS561683A true JPS561683A (en) 1981-01-09

Family

ID=13609805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7660079A Pending JPS561683A (en) 1979-06-18 1979-06-18 Color signal processing circuit

Country Status (1)

Country Link
JP (1) JPS561683A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676694A (en) * 1979-11-28 1981-06-24 Nec Corp Chroma signal processing circuit
JPS59172890A (en) * 1983-03-22 1984-09-29 Canon Inc Picture reproducing system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5676694A (en) * 1979-11-28 1981-06-24 Nec Corp Chroma signal processing circuit
JPH021435B2 (en) * 1979-11-28 1990-01-11 Nippon Electric Co
JPS59172890A (en) * 1983-03-22 1984-09-29 Canon Inc Picture reproducing system
JPH0527314B2 (en) * 1983-03-22 1993-04-20 Canon Kk

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