JPS5643893A - Color image pickup device - Google Patents

Color image pickup device

Info

Publication number
JPS5643893A
JPS5643893A JP11968679A JP11968679A JPS5643893A JP S5643893 A JPS5643893 A JP S5643893A JP 11968679 A JP11968679 A JP 11968679A JP 11968679 A JP11968679 A JP 11968679A JP S5643893 A JPS5643893 A JP S5643893A
Authority
JP
Japan
Prior art keywords
signal
converter
smoothed
output
control circuit
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
JP11968679A
Other languages
Japanese (ja)
Inventor
Yoshinori Kitamura
Shoji Nishikawa
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11968679A priority Critical patent/JPS5643893A/en
Publication of JPS5643893A publication Critical patent/JPS5643893A/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
    • H04N9/68—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)

Abstract

PURPOSE:To attain long-period storage and to make it possible to adjust white balance easily and accurately by storing a digital memory with the control signal of a gain control circuit that controls the gain of a color signal. CONSTITUTION:Color difference signal R-Y is smoothed by resistance 24 and capacitor 25 and comparator 26 decides the level and polarity of the smoothed color difference signal. Its decision signal is coded by A/D converting circuit 27, but can be stored for a long period by diodes 30 and 31 and battery 32 even with the main electric power source turned off. Then, D/A converter 29 D/A-converts the output of A/D converter 27 and with its output, gain control circuit 5 is controlled.
JP11968679A 1979-09-17 1979-09-17 Color image pickup device Pending JPS5643893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11968679A JPS5643893A (en) 1979-09-17 1979-09-17 Color image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11968679A JPS5643893A (en) 1979-09-17 1979-09-17 Color image pickup device

Publications (1)

Publication Number Publication Date
JPS5643893A true JPS5643893A (en) 1981-04-22

Family

ID=14767532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11968679A Pending JPS5643893A (en) 1979-09-17 1979-09-17 Color image pickup device

Country Status (1)

Country Link
JP (1) JPS5643893A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125094A (en) * 1983-12-09 1985-07-04 Matsushita Electric Ind Co Ltd Color picture reproducing device
JP2008095921A (en) * 2006-10-16 2008-04-24 Ntn Corp Idler pulley device for flat belt

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60125094A (en) * 1983-12-09 1985-07-04 Matsushita Electric Ind Co Ltd Color picture reproducing device
JP2008095921A (en) * 2006-10-16 2008-04-24 Ntn Corp Idler pulley device for flat belt

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