JPS5717291A - High level chroma killer system for color television camera - Google Patents

High level chroma killer system for color television camera

Info

Publication number
JPS5717291A
JPS5717291A JP4731881A JP4731881A JPS5717291A JP S5717291 A JPS5717291 A JP S5717291A JP 4731881 A JP4731881 A JP 4731881A JP 4731881 A JP4731881 A JP 4731881A JP S5717291 A JPS5717291 A JP S5717291A
Authority
JP
Japan
Prior art keywords
chroma signal
circuit
luminance
television camera
color television
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.)
Granted
Application number
JP4731881A
Other languages
Japanese (ja)
Other versions
JPS6052630B2 (en
Inventor
Seiji Matsumoto
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP56047318A priority Critical patent/JPS6052630B2/en
Publication of JPS5717291A publication Critical patent/JPS5717291A/en
Publication of JPS6052630B2 publication Critical patent/JPS6052630B2/en
Expired 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

Abstract

PURPOSE:To improve the video quality at high light, by removing the green color of a color reproduced picture due to shortage of beam of the objective at light part, in a simple type color television camera of frequency separation system. CONSTITUTION:A black level of a luminance signal inputted at an input terminal B is fixed at a clamp circuit 8 and applied to a chroma signal gate circuit 10 through a delay circuit 9 for phase mathcing with chroma signal, and the chroma signal given from an input terminal A is divided into two, one is applied to a chroma signal gate circuit 10 and another is applied to a subtraction circuit 11. The chroma signal applied to the chroma signal gate circuit 10 is picked up with gating if the luminance level is more than the reference level and applied to the subtraction circuit 11 and it is subtracted with the chroma signal of others. Thus, from the subtraction circuit 11, the chroma signal erased with the chroma signal for the higher luminance more than the reference level of the luminance signal can be obtained.
JP56047318A 1981-04-01 1981-04-01 High-level chroma killer method for color television cameras Expired JPS6052630B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56047318A JPS6052630B2 (en) 1981-04-01 1981-04-01 High-level chroma killer method for color television cameras

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56047318A JPS6052630B2 (en) 1981-04-01 1981-04-01 High-level chroma killer method for color television cameras

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP50039054A Division JPS6019189B2 (en) 1975-04-02 1975-04-02 High-level chroma killer method for color television cameras

Publications (2)

Publication Number Publication Date
JPS5717291A true JPS5717291A (en) 1982-01-28
JPS6052630B2 JPS6052630B2 (en) 1985-11-20

Family

ID=12771929

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56047318A Expired JPS6052630B2 (en) 1981-04-01 1981-04-01 High-level chroma killer method for color television cameras

Country Status (1)

Country Link
JP (1) JPS6052630B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419524A (en) * 1987-01-30 1989-01-23 Fuji Photo Film Co Ltd Magnetic recording medium
US5049989A (en) * 1990-01-04 1991-09-17 Olympus Optical Co., Ltd. Method and circuit for reducing the influence of a bright image area in an endoscope image signal
US5068719A (en) * 1989-06-07 1991-11-26 Olympus Optical Co., Ltd. Endoscope photometric apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6419524A (en) * 1987-01-30 1989-01-23 Fuji Photo Film Co Ltd Magnetic recording medium
US5068719A (en) * 1989-06-07 1991-11-26 Olympus Optical Co., Ltd. Endoscope photometric apparatus
US5049989A (en) * 1990-01-04 1991-09-17 Olympus Optical Co., Ltd. Method and circuit for reducing the influence of a bright image area in an endoscope image signal

Also Published As

Publication number Publication date
JPS6052630B2 (en) 1985-11-20

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