JPS57138280A - Color image pickup device - Google Patents

Color image pickup device

Info

Publication number
JPS57138280A
JPS57138280A JP56023389A JP2338981A JPS57138280A JP S57138280 A JPS57138280 A JP S57138280A JP 56023389 A JP56023389 A JP 56023389A JP 2338981 A JP2338981 A JP 2338981A JP S57138280 A JPS57138280 A JP S57138280A
Authority
JP
Japan
Prior art keywords
output
signal
converter
supplied
white balance
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
JP56023389A
Other languages
Japanese (ja)
Inventor
Takashi Asaida
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 JP56023389A priority Critical patent/JPS57138280A/en
Publication of JPS57138280A publication Critical patent/JPS57138280A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H04N23/88—Camera processing pipelines; Components thereof for processing colour signals for colour balance, e.g. white-balance circuits or colour temperature control

Landscapes

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

Abstract

PURPOSE:To obtain an output with excellent white balance by providing a reference signal generating circuit composed of a register and a D/A converter for A/D conversion of a color-multiplied image pickup output, and controlling it manually or automatically. CONSTITUTION:An output signal Si consisting of dot-seriated primary color signals G-B is obtained from a CCD1 and supplied to an A/D converter 12. An output signal Sd is supplied to a process amplifier 13 and a matrix circuit 14 to generate a corrected luminance signal Y and a couple of color difference signals R-Y and B-Y, which are mixed with a digital modulation output at a part 16, thus generating a TV signal Sod. During white balance adjustment, part of the signal Sd is stored in input registers 21G-21B and further sent to and processed by an AAU22; and it is also stored in output registers 23G-23B, and a reference signal is processed by D/A conversion 25 and supplied to a converter 12 to obtain an output Sod with excellent white balance. On the other hand, manual setting is possible without using the registers 21G-21B and AAU22.
JP56023389A 1981-02-19 1981-02-19 Color image pickup device Pending JPS57138280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023389A JPS57138280A (en) 1981-02-19 1981-02-19 Color image pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023389A JPS57138280A (en) 1981-02-19 1981-02-19 Color image pickup device

Publications (1)

Publication Number Publication Date
JPS57138280A true JPS57138280A (en) 1982-08-26

Family

ID=12109156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023389A Pending JPS57138280A (en) 1981-02-19 1981-02-19 Color image pickup device

Country Status (1)

Country Link
JP (1) JPS57138280A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970091A (en) * 1982-10-13 1984-04-20 Nippon Kogaku Kk <Nikon> Electronic still camera
EP0159853A2 (en) * 1984-04-09 1985-10-30 Nec Corporation Color imaging apparatus
EP0357054A2 (en) * 1988-08-31 1990-03-07 Canon Kabushiki Kaisha Color image reading apparatus
US5185659A (en) * 1988-08-31 1993-02-09 Canon Kabushiki Kaisha Color image reading apparatus having common circuitry for the color component signals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970091A (en) * 1982-10-13 1984-04-20 Nippon Kogaku Kk <Nikon> Electronic still camera
JPH0514478B2 (en) * 1982-10-13 1993-02-25 Nippon Kogaku Kk
EP0159853A2 (en) * 1984-04-09 1985-10-30 Nec Corporation Color imaging apparatus
EP0357054A2 (en) * 1988-08-31 1990-03-07 Canon Kabushiki Kaisha Color image reading apparatus
US5185659A (en) * 1988-08-31 1993-02-09 Canon Kabushiki Kaisha Color image reading apparatus having common circuitry for the color component signals

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