FR1066763A - Method and device for automatically adjusting the brightness of a television receiver as a function of the intensity of ambient light - Google Patents

Method and device for automatically adjusting the brightness of a television receiver as a function of the intensity of ambient light

Info

Publication number
FR1066763A
FR1066763A FR1066763DA FR1066763A FR 1066763 A FR1066763 A FR 1066763A FR 1066763D A FR1066763D A FR 1066763DA FR 1066763 A FR1066763 A FR 1066763A
Authority
FR
France
Prior art keywords
brightness
intensity
function
ambient light
television receiver
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
Other languages
French (fr)
Inventor
Jean Lamare
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 filed Critical
Application granted granted Critical
Publication of FR1066763A publication Critical patent/FR1066763A/en
Expired 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)
FR1066763D 1952-11-22 1952-11-22 Method and device for automatically adjusting the brightness of a television receiver as a function of the intensity of ambient light Expired FR1066763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1066763T 1952-11-22

Publications (1)

Publication Number Publication Date
FR1066763A true FR1066763A (en) 1954-06-09

Family

ID=9602874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1066763D Expired FR1066763A (en) 1952-11-22 1952-11-22 Method and device for automatically adjusting the brightness of a television receiver as a function of the intensity of ambient light

Country Status (1)

Country Link
FR (1) FR1066763A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076736B (en) * 1958-04-29 1960-03-03 Philips Patentverwaltung Circuit arrangement for automatic, room-light-dependent readjustment of the basic brightness and contrast of a television receiver
DE1118251B (en) * 1959-03-17 1961-11-30 Philips Patentverwaltung TV receiver with automatic room light dependent contrast and basic brightness control
DE1124995B (en) * 1958-08-15 1962-03-08 Loewe Opta Ag Circuit arrangement for a brightness control of a television picture which is automatically dependent on the room light
FR2284835A1 (en) * 1974-09-10 1976-04-09 Floret Francis Solar heating system using vacuum insulation - has cellular structure between transparent sheets or tubes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076736B (en) * 1958-04-29 1960-03-03 Philips Patentverwaltung Circuit arrangement for automatic, room-light-dependent readjustment of the basic brightness and contrast of a television receiver
DE1124995B (en) * 1958-08-15 1962-03-08 Loewe Opta Ag Circuit arrangement for a brightness control of a television picture which is automatically dependent on the room light
DE1118251B (en) * 1959-03-17 1961-11-30 Philips Patentverwaltung TV receiver with automatic room light dependent contrast and basic brightness control
FR2284835A1 (en) * 1974-09-10 1976-04-09 Floret Francis Solar heating system using vacuum insulation - has cellular structure between transparent sheets or tubes

Similar Documents

Publication Publication Date Title
FR1065708A (en) Method and device for remote control of an aerial mobile
FR1066763A (en) Method and device for automatically adjusting the brightness of a television receiver as a function of the intensity of ambient light
FR1076737A (en) Device for adjusting the gradation of an image signal
FR1038366A (en) Advertising device using the power of the wind for its operation
CH324921A (en) Automatic synchronization device for television surveillance installation
FR1050183A (en) Automatic intensity control device in a television receiver
FR63040E (en) Anti-glare lighting method and device for vehicles
FR62227E (en) Anti-glare lighting method and device for vehicles
FR1054338A (en) Method and device for obtaining crimped yarns
FR1089774A (en) Automatic decompression and purge device for air compressor
FR1081729A (en) Device in particular for the lighting of airfields
FR1064552A (en) Assembly method and device for tubular constructions
FR1050618A (en) Automatic frequency adjustment device of an oscillator
FR1079576A (en) Automatic winding device for watch mechanisms
FR1075866A (en) Device for amplifying the light intensity of an optically projected image
FR1069183A (en) Automatic device for adjusting the tuning of an amplifier
FR1067937A (en) Automatic priming device for siphons
FR1085343A (en) Photo-electric lighting control device
FR1076186A (en) Lighting method and device with discharge tube
FR1059737A (en) Lighting device
FR1076834A (en) Lighting device
FR1084162A (en) Method and device for making nuts with fast threads
FR1069525A (en) Automatic tension adjustment device
FR63983E (en) Method and device for obtaining crimped yarns
FR1076984A (en) Device for automatic selection of an elevator