BE578175A - - Google Patents

Info

Publication number: BE578175A
Authority: BE; Belgium

Application number

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.)

1958-04-29

Publication of BE578175A publication Critical patent/BE578175A/xx

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

BE578175D 1958-04-29 BE578175A (xx)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DEP20593A DE1076736B (de)	1958-04-29	1958-04-29	Schaltungsanordnung zur selbsttaetigen raumlichtabhaengigen Nachregelung der Grundhelligkeit und des Kontrastes eines Fernsehempfaengers

Publications (1)

Publication Number	Publication Date
BE578175A true BE578175A (xx)

Family

ID=7367901

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE578175D BE578175A (xx)	1958-04-29

Country Status (6)

Country	Link
US (1)	US3025345A (xx)
BE (1)	BE578175A (xx)
DE (1)	DE1076736B (xx)
FR (1)	FR1223058A (xx)
GB (1)	GB921014A (xx)
NL (1)	NL238629A (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1093814B (de) *	1959-04-07	1960-12-01	Standard Elektrik Lorenz Ag	Verfahren zur automatischen Kontrastregelung von Fernsehgeraeten
US3293483A (en) *	1962-01-08	1966-12-20	Siemens Ag	Radiation controlled electron radiation source
DE1249325B (de) *	1960-12-30	1967-09-07	Radio Corporation Of America, New York, N. Y. (V. St. A.)	Schaltungsanordnung :ur raumlichtabhängigen Steuerung des Contrastes und der Helligkeit in einem ernsehempfänger
US3147341A (en) *	1961-04-24	1964-09-01	Gen Electric	Automatic brightness-contrast control using photoresistive element to control brightness and agc voltages in response to ambinent light
US3165582A (en) *	1961-12-29	1965-01-12	Magnavox Co	Automatic contrast and brilliance control system for television receivers
US3214517A (en) *	1962-08-06	1965-10-26	Wells Gardner Electronics	Automatic control circuit for television receivers
US3258532A (en) *	1963-03-12	1966-06-28	Hazeltine Research Inc	Automatic-picture-control circuit for a television receiver
DE1207431B (de) *	1963-10-18	1965-12-23	Philips Patentverwaltung	Geraet zur Wiedergabe farbiger Bilder
US3441663A (en) *	1965-05-04	1969-04-29	Photo Electronics Corp	Non-linear amplifiers and systems
US3813686A (en) *	1972-11-27	1974-05-28	Magnovox Co	Ambient light responsive control of brightness, contrast and color saturation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2264172A (en) *	1939-08-25	1941-11-25	John C Batchelor	Television receiver
FR1066763A (fr) *	1952-11-22	1954-06-09		Procédé et dispositif pour le réglage automatique de la luminosité d'un récepteur de télévision en fonction de l'intensité de la lumière ambiante
DE1764663U (de) *	1958-01-25	1958-04-10	Saba Gmbh	Anordnung zur selbsttaetigen lichtabhaengigen regelung mittels fotoleitern.

0
- NL NL238629D patent/NL238629A/xx unknown
- BE BE578175D patent/BE578175A/xx unknown
1958
- 1958-04-29 DE DEP20593A patent/DE1076736B/de active Pending
1959
- 1959-03-26 US US802166A patent/US3025345A/en not_active Expired - Lifetime
- 1959-04-24 GB GB14068/59A patent/GB921014A/en not_active Expired
- 1959-04-29 FR FR793546A patent/FR1223058A/fr not_active Expired

Also Published As

Publication number	Publication date
NL238629A (xx)
FR1223058A (fr)	1960-06-15
DE1076736B (de)	1960-03-03
GB921014A (en)	1963-03-13
US3025345A (en)	1962-03-13

Publication	Publication Date	Title
FR517M (xx)	1961-05-15
AT217439B (xx)	1961-10-10
AT221043B (xx)	1962-04-25
FR459M (xx)	1961-04-24
JPS3820472Y1 (xx)	1963-10-03
AT213316B (xx)	1961-02-10
AT213446B (xx)	1961-02-27
AT213337B (xx)	1961-02-10
AT217982B (xx)	1961-11-10
AT219815B (xx)	1962-02-26
AT216612B (xx)	1961-08-10
AT219868B (xx)	1962-02-26
AT213313B (xx)	1961-02-10
BE562866A (xx)
BE543812A (xx)
BE582855A (xx)
BE575778A (xx)
BE575341A (xx)
BE573146A (xx)
BE567989A (xx)	1958-06-14
BE563683A (xx)
BE563346A (xx)
BE563272A (xx)	1958-01-15
BE563232A (xx)
CH7642159A4 (xx)	1965-10-30