FR1237761A - Device for controlling the contrast and luminance of the background simultaneously in a television - Google Patents

Device for controlling the contrast and luminance of the background simultaneously in a television

Info

Publication number
FR1237761A
FR1237761A FR797347A FR797347A FR1237761A FR 1237761 A FR1237761 A FR 1237761A FR 797347 A FR797347 A FR 797347A FR 797347 A FR797347 A FR 797347A FR 1237761 A FR1237761 A FR 1237761A
Authority
FR
France
Prior art keywords
luminance
television
contrast
controlling
background simultaneously
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
FR797347A
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1237761A publication Critical patent/FR1237761A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Receiver Circuits (AREA)
FR797347A 1958-06-14 1959-06-12 Device for controlling the contrast and luminance of the background simultaneously in a television Expired FR1237761A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP20867A DE1259934B (en) 1958-06-14 1958-06-14 Television receiver circuit arrangement for the simultaneous control of contrast and basic brightness

Publications (1)

Publication Number Publication Date
FR1237761A true FR1237761A (en) 1960-08-05

Family

ID=7367979

Family Applications (1)

Application Number Title Priority Date Filing Date
FR797347A Expired FR1237761A (en) 1958-06-14 1959-06-12 Device for controlling the contrast and luminance of the background simultaneously in a television

Country Status (4)

Country Link
US (1) US3037565A (en)
DE (1) DE1259934B (en)
FR (1) FR1237761A (en)
GB (1) GB919128A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136849A (en) * 1961-03-14 1964-06-09 Philco Corp Television receiver
GB2057826B (en) * 1979-08-31 1983-01-12 Ibm Multibeam cathode ray tube apparatus
FR2651080A1 (en) * 1989-08-18 1991-02-22 Hewlett Packard France Sa GAIN CONTROL DEVICE FOR VIDEO MONITOR

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE721413C (en) * 1935-08-27 1942-06-04 Telefunken Gmbh TV receiver with Braunscher tube
US2194456A (en) * 1935-08-27 1940-03-19 Telefunken Gmbh Signaling apparatus
US2204992A (en) * 1937-08-20 1940-06-18 Rca Corp Television receiver
CH205697A (en) * 1937-08-20 1939-06-30 Rca Corp Television receiving circuit.
US2470048A (en) * 1946-05-31 1949-05-10 Bendix Aviat Corp Television receiver
US2672505A (en) * 1950-06-13 1954-03-16 Avco Mfg Corp Black level shift compensating amplifier
DE1729666U (en) * 1955-02-11 1956-09-13 Saba Gmbh DEVICES FOR TRANSFERRING AVERAGE PICTURE BRIGHTNESSES IN PICTURE RECEIVING DEVICES.
US2943145A (en) * 1956-03-30 1960-06-28 Louis W Parker Television tuning indicator
DE1014159B (en) * 1956-04-25 1957-08-22 Telefunken Gmbh Circuit arrangement for contrast control in television receivers

Also Published As

Publication number Publication date
US3037565A (en) 1962-06-05
GB919128A (en) 1963-02-20
DE1259934B (en) 1968-02-01

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