JPS55136778A - Color television camera - Google Patents

Color television camera

Info

Publication number
JPS55136778A
JPS55136778A JP4455879A JP4455879A JPS55136778A JP S55136778 A JPS55136778 A JP S55136778A JP 4455879 A JP4455879 A JP 4455879A JP 4455879 A JP4455879 A JP 4455879A JP S55136778 A JPS55136778 A JP S55136778A
Authority
JP
Japan
Prior art keywords
signal
luminance
gain control
control circuit
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
JP4455879A
Other languages
Japanese (ja)
Inventor
Yuji Sagara
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4455879A priority Critical patent/JPS55136778A/en
Publication of JPS55136778A publication Critical patent/JPS55136778A/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
    • H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
    • H04N23/12—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths with one sensor only

Landscapes

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

Abstract

PURPOSE:To suppress the production of color error at the part having no vertical corelativity, by separating the color signal through the removal of factors of fluctuation of modulation color component due to luminance and adding again the component luminance after separation. CONSTITUTION:The signal from the pick up tube 11 having the stripe filter is separated for the luminance signal component at LPF13, and it is fed to the non-linear circuit 18, and the output of the non-linear circuit 18 is the control signal of the gain control circuit 17. On the other hand, the high band modulation component including chroma signal is separated from HPF16 and it is the input signal of the gain control circuit 17. The modulation component removed with the factors of variation due to luminance level is obtained from the output of the gain control circuit 17 and it is inputted to the delay circuit 19. Further, the non-delay signal and delay signal are operated at the adder 20 and substractor 21, and envelope detection is made at the detection circuits 22 and 23. After that, chroma signal is picked up at LPFs 24, 25 and it is fed to the gain control circuit 26 in non-linear control.
JP4455879A 1979-04-12 1979-04-12 Color television camera Pending JPS55136778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4455879A JPS55136778A (en) 1979-04-12 1979-04-12 Color television camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4455879A JPS55136778A (en) 1979-04-12 1979-04-12 Color television camera

Publications (1)

Publication Number Publication Date
JPS55136778A true JPS55136778A (en) 1980-10-24

Family

ID=12694820

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4455879A Pending JPS55136778A (en) 1979-04-12 1979-04-12 Color television camera

Country Status (1)

Country Link
JP (1) JPS55136778A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939581U (en) * 1982-09-02 1984-03-13 三洋電機株式会社 White balance correction circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5939581U (en) * 1982-09-02 1984-03-13 三洋電機株式会社 White balance correction circuit
JPH0422616Y2 (en) * 1982-09-02 1992-05-25

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