JPS57201381A - Digital television set - Google Patents

Digital television set

Info

Publication number
JPS57201381A
JPS57201381A JP56085576A JP8557681A JPS57201381A JP S57201381 A JPS57201381 A JP S57201381A JP 56085576 A JP56085576 A JP 56085576A JP 8557681 A JP8557681 A JP 8557681A JP S57201381 A JPS57201381 A JP S57201381A
Authority
JP
Japan
Prior art keywords
circuit
signal
control signal
latch
luminance
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
JP56085576A
Other languages
Japanese (ja)
Inventor
Tomio Minami
Naoyuki Kokado
Yukinori Kudo
Susumu Suzuki
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 JP56085576A priority Critical patent/JPS57201381A/en
Publication of JPS57201381A publication Critical patent/JPS57201381A/en
Pending 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)
  • Picture Signal Circuits (AREA)

Abstract

PURPOSE:To reduce a control signal inputting circuit, by selectively A/D converting plural picture quality control signals, storing this converted signal in a latching circuit corresponding to the input, and supplying it to a processing circuit. CONSTITUTION:Each controller 18-21 of luminance, contract, depth of color and hue is constituted of a potentiometer by an electric power supply 35. When luminance control voltage 18 has been selected by an analog multiplexer 26, a latch pulse generating circuit 25 is inputted to a luminance control signal latch 31 after an A/D converter 29 has outputted a digital luminance control signal 30 completely, and a timing signal 61 is sent out. The latch 31 is operated by this signal 61, stores a signal 30, and also supplies it to a processing circuit. After that, in the same way, as to contrast, depth of color and hue, too, a digital control signal is written in each latching circuit 32-34 by time division, and is sent out to the processing circuit. According to this constitution, one A/D converting circuit will do, and also the number of pins can be reduced remarkably.
JP56085576A 1981-06-05 1981-06-05 Digital television set Pending JPS57201381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56085576A JPS57201381A (en) 1981-06-05 1981-06-05 Digital television set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56085576A JPS57201381A (en) 1981-06-05 1981-06-05 Digital television set

Publications (1)

Publication Number Publication Date
JPS57201381A true JPS57201381A (en) 1982-12-09

Family

ID=13862633

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56085576A Pending JPS57201381A (en) 1981-06-05 1981-06-05 Digital television set

Country Status (1)

Country Link
JP (1) JPS57201381A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09294230A (en) * 1996-12-18 1997-11-11 Pioneer Electron Corp Image quality and sound quality adjustment device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09294230A (en) * 1996-12-18 1997-11-11 Pioneer Electron Corp Image quality and sound quality adjustment device

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