JPS5690690A - Automatic regulator of color television receiver - Google Patents

Automatic regulator of color television receiver

Info

Publication number
JPS5690690A
JPS5690690A JP16795879A JP16795879A JPS5690690A JP S5690690 A JPS5690690 A JP S5690690A JP 16795879 A JP16795879 A JP 16795879A JP 16795879 A JP16795879 A JP 16795879A JP S5690690 A JPS5690690 A JP S5690690A
Authority
JP
Japan
Prior art keywords
circuit
luminance
signal
automatic
chromaticity
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
JP16795879A
Other languages
Japanese (ja)
Other versions
JPS6217919B2 (en
Inventor
Takafumi Okada
Atsushi Matsuzaki
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 JP16795879A priority Critical patent/JPS5690690A/en
Publication of JPS5690690A publication Critical patent/JPS5690690A/en
Publication of JPS6217919B2 publication Critical patent/JPS6217919B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To use the black and white levels of any video signal to the best representing performance of a cathode-ray tube by using an existing semiconductor integrated circuit for luminance-chromaticity processing and then by providing a gain control circuit in front of it. CONSTITUTION:Through gain control circuit 71 havig an automatic pedestal clamping circuit for a luminance signal and level control circuit for luminance and chromaticity signals, a composite color video signal is inputted to band-pass filter 73 and trapping circuit 72. Then, the chromaticity signal and the luminance signal passed through automatic black level regulator A are inputted to the existing integrated circuit B for luminance-chromaticity processing semiconductor whose control voltage supplied to screen control terminal 69 is made constant and the output signal of OR circuit 29 of a combinational circuit for automatic luminance regulation and automatic mean-value luminance limitation is supplied to adding circuit 76, whose signal is supplied to circuit 71. Consequently, the gain control range is widened, so that black and white levels of any video signal is used to the best representing performance of an in-use cathode-ray tube.
JP16795879A 1979-12-24 1979-12-24 Automatic regulator of color television receiver Granted JPS5690690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16795879A JPS5690690A (en) 1979-12-24 1979-12-24 Automatic regulator of color television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16795879A JPS5690690A (en) 1979-12-24 1979-12-24 Automatic regulator of color television receiver

Publications (2)

Publication Number Publication Date
JPS5690690A true JPS5690690A (en) 1981-07-22
JPS6217919B2 JPS6217919B2 (en) 1987-04-20

Family

ID=15859190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16795879A Granted JPS5690690A (en) 1979-12-24 1979-12-24 Automatic regulator of color television receiver

Country Status (1)

Country Link
JP (1) JPS5690690A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127495A (en) * 1982-01-26 1983-07-29 Mitsubishi Electric Corp Television video chroma circuit
JPS5950169U (en) * 1982-09-24 1984-04-03 シャープ株式会社 automatic picture tube protection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0543912U (en) * 1991-11-21 1993-06-15 ユニチカユーエムグラス株式会社 Folding umbrella

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58127495A (en) * 1982-01-26 1983-07-29 Mitsubishi Electric Corp Television video chroma circuit
JPS5950169U (en) * 1982-09-24 1984-04-03 シャープ株式会社 automatic picture tube protection device

Also Published As

Publication number Publication date
JPS6217919B2 (en) 1987-04-20

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