BE476128A - - Google Patents

Info

Publication number
BE476128A
BE476128A BE476128DA BE476128A BE 476128 A BE476128 A BE 476128A BE 476128D A BE476128D A BE 476128DA BE 476128 A BE476128 A BE 476128A
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.)
Publication of BE476128A publication Critical patent/BE476128A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means
    • 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
BE476128D 1939-02-07 BE476128A (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB260215X 1939-02-07

Publications (1)

Publication Number Publication Date
BE476128A true BE476128A (xx)

Family

ID=10237115

Family Applications (1)

Application Number Title Priority Date Filing Date
BE476128D BE476128A (xx) 1939-02-07

Country Status (4)

Country Link
BE (1) BE476128A (xx)
CH (1) CH260215A (xx)
FR (1) FR862784A (xx)
GB (1) GB524672A (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH230613A (de) * 1939-11-08 1944-01-15 Ges Foerderung Forschung Technische Physik Eth Zuerich Anordnung zur Wiedergabe eines Fernsehbildes.
US2635141A (en) * 1949-11-30 1953-04-14 Rca Corp Color television receiver registration system
DE1000438B (de) * 1955-05-12 1957-01-10 Siemens Ag Schaltung zur Erzeugung einer von den Raumlichtverhaeltnissen abhaengigen Regelspannung fuer Fernsehempfaenger
DE1014159B (de) * 1956-04-25 1957-08-22 Telefunken Gmbh Schaltungsanordnung zur Kontrastregelung in Fernsehempfaengern
DE1027236B (de) * 1957-03-14 1958-04-03 Metz Transformatoren & App Lichtgesteuerte Fernsteuereinrichtung fuer ein Fernsehgeraet
DE1177675B (de) * 1958-01-25 1964-09-10 Saba Gmbh Anordnung zur selbsttaetigen, raumlicht-abhaengigen Regelung des Kontrastes und der Bildhelligkeit von Fernsehempfangsgeraeten
NL278224A (xx) * 1961-05-10
US8032084B2 (en) 2001-07-18 2011-10-04 Data Transfer & Communications Limited Data security device

Also Published As

Publication number Publication date
GB524672A (en) 1940-08-12
CH260215A (de) 1949-02-28
FR862784A (fr) 1941-03-14

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