JPS6248948B2 - - Google Patents

Info

Publication number
JPS6248948B2
JPS6248948B2 JP55000295A JP29580A JPS6248948B2 JP S6248948 B2 JPS6248948 B2 JP S6248948B2 JP 55000295 A JP55000295 A JP 55000295A JP 29580 A JP29580 A JP 29580A JP S6248948 B2 JPS6248948 B2 JP S6248948B2
Authority
JP
Japan
Prior art keywords
alc
preset
threshold level
loop
level setting
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
Application number
JP55000295A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5698083A (en
Inventor
Yukio 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.)
HITACHI ELECTRONICS
Original Assignee
HITACHI ELECTRONICS
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 HITACHI ELECTRONICS filed Critical HITACHI ELECTRONICS
Priority to JP29580A priority Critical patent/JPS5698083A/ja
Publication of JPS5698083A publication Critical patent/JPS5698083A/ja
Publication of JPS6248948B2 publication Critical patent/JPS6248948B2/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
    • H04N5/58—Control of contrast or brightness in dependence upon ambient light

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Exposure Control For Cameras (AREA)
JP29580A 1980-01-08 1980-01-08 Automatic light volume controller Granted JPS5698083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29580A JPS5698083A (en) 1980-01-08 1980-01-08 Automatic light volume controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29580A JPS5698083A (en) 1980-01-08 1980-01-08 Automatic light volume controller

Publications (2)

Publication Number Publication Date
JPS5698083A JPS5698083A (en) 1981-08-07
JPS6248948B2 true JPS6248948B2 (enrdf_load_stackoverflow) 1987-10-16

Family

ID=11469903

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29580A Granted JPS5698083A (en) 1980-01-08 1980-01-08 Automatic light volume controller

Country Status (1)

Country Link
JP (1) JPS5698083A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846038C2 (de) * 1998-10-06 2000-09-21 Thomson Brandt Gmbh Fernsehgerät mit reduziertem Leistungsverbrauch

Also Published As

Publication number Publication date
JPS5698083A (en) 1981-08-07

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