FR2220950B1 - - Google Patents

Info

Publication number: FR2220950B1
Authority: FR; France
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

FR7405723A

Other languages

Other versions

FR2220950A1 (de

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.)

Siemens Corp

Original Assignee

Siemens Corp

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.)

1973-03-07

Filing date

1974-02-20

Publication date

1981-10-09

1974-02-20 Application filed by Siemens Corp filed Critical Siemens Corp

1974-10-04 Publication of FR2220950A1 publication Critical patent/FR2220950A1/fr

1981-10-09 Application granted granted Critical

1981-10-09 Publication of FR2220950B1 publication Critical patent/FR2220950B1/fr

Status Expired legal-status Critical Current

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)
Closed-Circuit Television Systems (AREA)

FR7405723A 1973-03-07 1974-02-20 Expired FR2220950B1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19732311210 DE2311210C2 (de)	1973-03-07	1973-03-07	Anordnung zum automatischen Konstanthalten des Spitzenwertes der Bildhelligkeit einer Fernseh-Bildwiedergaberöhre

Publications (2)

Publication Number	Publication Date
FR2220950A1 FR2220950A1 (de)	1974-10-04
FR2220950B1 true FR2220950B1 (de)	1981-10-09

Family

ID=5873996

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7405723A Expired FR2220950B1 (de)	1973-03-07	1974-02-20

Country Status (3)

Country	Link
BE (1)	BE811459A (de)
DE (1)	DE2311210C2 (de)
FR (1)	FR2220950B1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2846540C2 (de) *	1978-10-26	1986-04-03	Philips Patentverwaltung Gmbh, 2000 Hamburg	Anordnung zur Bildschirmfotografie für Wiedergabegeräte mit kreisförmiger Bildaustastung
US4530011A (en) *	1981-06-19	1985-07-16	Loge/Dunn Instruments, Inc.	Apparatus for maintaining of a cathode ray tube image within the light acceptance range of a photographic film
DE3235659A1 (de) *	1982-09-27	1984-03-29	Siemens AG, 1000 Berlin und 8000 München	Vorrichtung zur aufnahme von fernsehbildern auf einem photographischen film
US4679087A (en) *	1984-03-12	1987-07-07	Loge/Dunn Instruments, Inc.	Method and apparatus for photographing video images of either polarity without CRT brightness or contrast readjustment
US4731662A (en) *	1985-03-21	1988-03-15	Canon Kabushiki Kaisha	Image processing method for processing an image signal differently depending on the range of an image characteristic thereof relative to the range within which an output device can reproduce the image characteristic
DE19508623A1 (de) *	1995-03-10	1996-09-12	Sel Alcatel Ag	Schaltungsanordnung zur Anzeige und zur Regelung von Umgebungslichtverhältnissen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1241869B (de) *	1962-05-12	1967-06-08	Fernseh Gmbh	Schaltungsanordnung zur Verbesserung der Detailerkennbarkeit eines Fernsehbildes
DE1537424B2 (de) *	1967-12-02	1973-08-09	Siemens AG, 1000 Berlin u. 8000 München	Roentgenfernseheinrichtung
US3649755A (en) *	1970-06-01	1972-03-14	Bendix Corp	Method and means for providing a lighted display having a constant contrast ratio

1973
- 1973-03-07 DE DE19732311210 patent/DE2311210C2/de not_active Expired
1974
- 1974-02-20 FR FR7405723A patent/FR2220950B1/fr not_active Expired
- 1974-02-22 BE BE141289A patent/BE811459A/xx unknown

Also Published As

Publication number	Publication date
DE2311210A1 (de)	1974-09-12
DE2311210C2 (de)	1982-06-24
BE811459A (fr)	1974-06-17
FR2220950A1 (de)	1974-10-04

Publication	Publication Date	Title
AR201758A1 (de)	1975-04-15
AU476761B2 (de)	1976-09-30
AR201235Q (de)	1975-02-21
AU474593B2 (de)	1976-07-29
AU474511B2 (de)	1976-07-22
AU474838B2 (de)	1976-08-05
AU476714B2 (de)	1976-09-30
FR2220950B1 (de)	1981-10-09
AR201229Q (de)	1975-02-21
AU476696B2 (de)	1976-09-30
AR199451A1 (de)	1974-08-30
AU472848B2 (de)	1976-06-03
AU477823B2 (de)	1975-06-19
AU477824B2 (de)	1975-07-17
AU447540B2 (de)	1974-03-25
AR200256A1 (de)	1974-10-31
AR201432A1 (de)	1975-03-14
AR200885A1 (de)	1974-12-27
AR195948A1 (de)	1973-11-15
AU476873B1 (de)	1975-01-09
AR210729A1 (de)	1977-09-15
AR196123Q (de)	1973-11-30
AU1891376A (de)	1977-01-20
CH559310A5 (de)	1975-02-28
AU479562A (de)	1975-01-09

Legal Events

Date	Code	Title	Description
1987-12-24	ST	Notification of lapse