JPS55143891A - Color video output drive adjusting circuit - Google Patents

Color video output drive adjusting circuit

Info

Publication number
JPS55143891A
JPS55143891A JP5183979A JP5183979A JPS55143891A JP S55143891 A JPS55143891 A JP S55143891A JP 5183979 A JP5183979 A JP 5183979A JP 5183979 A JP5183979 A JP 5183979A JP S55143891 A JPS55143891 A JP S55143891A
Authority
JP
Japan
Prior art keywords
signal
reference pulse
adjusted
terminal
video output
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
JP5183979A
Other languages
Japanese (ja)
Other versions
JPS6136431B2 (en
Inventor
Kazuo Koizumi
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 JP5183979A priority Critical patent/JPS55143891A/en
Publication of JPS55143891A publication Critical patent/JPS55143891A/en
Publication of JPS6136431B2 publication Critical patent/JPS6136431B2/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
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase

Landscapes

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

Abstract

PURPOSE:To make it possible to adjust drive well, by inserting a reference pulse signal into a part of the horizontal blanking period of the video signal and by comparing the reference pulse level and respective detection levels with each other to control the gain. CONSTITUTION:The red video signal, reference pulse signal Sa and luminance adjustment signal 9a are supplied to terminal 1, terminal 7, and terminal 9 respectively to obtain a signal, where luminance adjustment signal 9a and reference pulse signal Sa are superposed during the horizontal blanking period of the video signal, in the collector of transistor 2. This signal is supplied to Braun tube 15 through clamp circuit 11. Consequently, luminance can be adjusted by adjusting luminance adjustment signal 9a. Background can be adjusted by adjusting variable resistance 27. Further, the white level can be adjusted by adjusting variable resistor 38.
JP5183979A 1979-04-26 1979-04-26 Color video output drive adjusting circuit Granted JPS55143891A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5183979A JPS55143891A (en) 1979-04-26 1979-04-26 Color video output drive adjusting circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5183979A JPS55143891A (en) 1979-04-26 1979-04-26 Color video output drive adjusting circuit

Publications (2)

Publication Number Publication Date
JPS55143891A true JPS55143891A (en) 1980-11-10
JPS6136431B2 JPS6136431B2 (en) 1986-08-18

Family

ID=12898020

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5183979A Granted JPS55143891A (en) 1979-04-26 1979-04-26 Color video output drive adjusting circuit

Country Status (1)

Country Link
JP (1) JPS55143891A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504538A (en) * 1992-09-01 1996-04-02 Matsushita Electric Industrial Co., Ltd. Video signal processor for controlling the brightness and contrast of a display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5504538A (en) * 1992-09-01 1996-04-02 Matsushita Electric Industrial Co., Ltd. Video signal processor for controlling the brightness and contrast of a display device

Also Published As

Publication number Publication date
JPS6136431B2 (en) 1986-08-18

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