JPS54105428A - Color television camera - Google Patents

Color television camera

Info

Publication number
JPS54105428A
JPS54105428A JP1286378A JP1286378A JPS54105428A JP S54105428 A JPS54105428 A JP S54105428A JP 1286378 A JP1286378 A JP 1286378A JP 1286378 A JP1286378 A JP 1286378A JP S54105428 A JPS54105428 A JP S54105428A
Authority
JP
Japan
Prior art keywords
color
luminance signal
signals
signal
chrominance
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
JP1286378A
Other languages
Japanese (ja)
Other versions
JPS6050110B2 (en
Inventor
Omichi Tanaka
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 JP53012863A priority Critical patent/JPS6050110B2/en
Publication of JPS54105428A publication Critical patent/JPS54105428A/en
Publication of JPS6050110B2 publication Critical patent/JPS6050110B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Color Television Image Signal Generators (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

PURPOSE: To make effective natural white clipping with a dynamic range widened by suppressing a chrominance-signal output, by correcting a color signal with a luminance signal when the quantity of the incident light of a vidicon increases.
CONSTITUTION: The output of vidicon 1 is supplied via amplifier 2 to low-pass filter 3, where a luminance signal is extracted, and then converted by band-pass filter 5 and separator circuit 6 into color signals of R and B, which are applied to expander circuits 7 and 8. At the time of the quantity of incident light when the increase ratio of the luminance signal level disagrees with that of the color signal level, non-linear circuit 4 controls expanders 7 and 8 by the luminance signal at that time to correct the color signal. Color signals are converted into chrominance signals by way of detectors 9 and 10, amplifiers 11 and 12, and encoder 13 and then outputted from mixer circuit 15 through suppressor 14. Non-linear circuit 4 allows suppressor 14 to suppress chrominance signals when the correction of color signals even by expanders 7 and 8 becomes impossible as the result of the increase in the incident- light quantity.
COPYRIGHT: (C)1979,JPO&Japio
JP53012863A 1978-02-06 1978-02-06 color television camera Expired JPS6050110B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53012863A JPS6050110B2 (en) 1978-02-06 1978-02-06 color television camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53012863A JPS6050110B2 (en) 1978-02-06 1978-02-06 color television camera

Publications (2)

Publication Number Publication Date
JPS54105428A true JPS54105428A (en) 1979-08-18
JPS6050110B2 JPS6050110B2 (en) 1985-11-06

Family

ID=11817242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53012863A Expired JPS6050110B2 (en) 1978-02-06 1978-02-06 color television camera

Country Status (1)

Country Link
JP (1) JPS6050110B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970389A (en) * 1982-10-15 1984-04-20 Nec Corp Color image pickup device
JPS6229295A (en) * 1985-07-29 1987-02-07 Toshiba Corp Image pickup device
JPS6229294A (en) * 1985-07-29 1987-02-07 Toshiba Corp Image pickup device
US4754323A (en) * 1982-12-29 1988-06-28 Canon Kabushiki Kaisha Color image pickup device in which the level of a sequential color-difference signal is controlled on the basis of the level of the luminance signal
US7446779B2 (en) * 2003-03-05 2008-11-04 Canon Kabushiki Kaisha Color signal correction apparatus, color signal correction method and image display apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970389A (en) * 1982-10-15 1984-04-20 Nec Corp Color image pickup device
US4754323A (en) * 1982-12-29 1988-06-28 Canon Kabushiki Kaisha Color image pickup device in which the level of a sequential color-difference signal is controlled on the basis of the level of the luminance signal
JPS6229295A (en) * 1985-07-29 1987-02-07 Toshiba Corp Image pickup device
JPS6229294A (en) * 1985-07-29 1987-02-07 Toshiba Corp Image pickup device
US7446779B2 (en) * 2003-03-05 2008-11-04 Canon Kabushiki Kaisha Color signal correction apparatus, color signal correction method and image display apparatus

Also Published As

Publication number Publication date
JPS6050110B2 (en) 1985-11-06

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