JPH0229274B2 - - Google Patents

Info

Publication number
JPH0229274B2
JPH0229274B2 JP58001490A JP149083A JPH0229274B2 JP H0229274 B2 JPH0229274 B2 JP H0229274B2 JP 58001490 A JP58001490 A JP 58001490A JP 149083 A JP149083 A JP 149083A JP H0229274 B2 JPH0229274 B2 JP H0229274B2
Authority
JP
Japan
Prior art keywords
rgb
level
contrast
circuit
automatic brightness
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.)
Expired - Lifetime
Application number
JP58001490A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59126384A (ja
Inventor
Takafumi Konishi
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 JP58001490A priority Critical patent/JPS59126384A/ja
Publication of JPS59126384A publication Critical patent/JPS59126384A/ja
Publication of JPH0229274B2 publication Critical patent/JPH0229274B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • H04N5/59—Control of contrast or brightness in dependence upon beam current of cathode ray tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
  • Controls And Circuits For Display Device (AREA)
JP58001490A 1983-01-07 1983-01-07 自動輝度制限装置 Granted JPS59126384A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58001490A JPS59126384A (ja) 1983-01-07 1983-01-07 自動輝度制限装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58001490A JPS59126384A (ja) 1983-01-07 1983-01-07 自動輝度制限装置

Publications (2)

Publication Number Publication Date
JPS59126384A JPS59126384A (ja) 1984-07-20
JPH0229274B2 true JPH0229274B2 (fr) 1990-06-28

Family

ID=11502887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58001490A Granted JPS59126384A (ja) 1983-01-07 1983-01-07 自動輝度制限装置

Country Status (1)

Country Link
JP (1) JPS59126384A (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53160318U (fr) * 1977-05-20 1978-12-15

Also Published As

Publication number Publication date
JPS59126384A (ja) 1984-07-20

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