BE441060A - - Google Patents

Info

Publication number
BE441060A
BE441060A BE441060DA BE441060A BE 441060 A BE441060 A BE 441060A BE 441060D A BE441060D A BE 441060DA BE 441060 A BE441060 A BE 441060A
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.)
Filing date
Publication date
Application filed filed Critical
Publication of BE441060A publication Critical patent/BE441060A/xx

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/20—Prevention of damage to cathode-ray tubes in the event of failure of scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/16—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165—Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level to maintain the black level constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
BE441060D 1938-11-30 1941-04-02 BE441060A (xx)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US243134A US2255484A (en) 1938-11-30 1938-11-30 Automatic background control for television systems
US309443A US2255485A (en) 1938-11-30 1939-12-15 Television receiver

Publications (1)

Publication Number Publication Date
BE441060A true BE441060A (xx) 1941-05-31

Family

ID=26935609

Family Applications (1)

Application Number Title Priority Date Filing Date
BE441060D BE441060A (xx) 1938-11-30 1941-04-02

Country Status (3)

Country Link
US (2) US2255484A (xx)
BE (1) BE441060A (xx)
FR (2) FR861968A (xx)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2418133A (en) * 1943-06-18 1947-04-01 Western Electric Co Cathode-ray apparatus and method of controlling the ray
US2425330A (en) * 1943-06-22 1947-08-12 Sperry Gyroscope Co Inc Cathode-ray system with bright and dark marker indications
GB579090A (en) * 1944-05-11 1946-07-23 Standard Telephones Cables Ltd Improvements in or relating to radio systems for guiding aircraft
US2466065A (en) * 1944-09-08 1949-04-05 Tung Sol Lamp Works Inc Direct-current amplifier and circuit
US2430331A (en) * 1944-09-14 1947-11-04 Remington Rand Inc Automatic focus control for cathode-ray tubes
US2489155A (en) * 1944-12-30 1949-11-22 Allis Chalmcrs Mfg Company Electric control circuit
US2555147A (en) * 1945-09-14 1951-05-29 Ralph E Meagher Cathode-ray tube magnetic focusing
US2514112A (en) * 1945-12-28 1950-07-04 Rca Corp Response control for wide band amplifiers
US2559078A (en) * 1946-08-10 1951-07-03 Rca Corp Television system
US2458891A (en) * 1947-01-11 1949-01-11 Philips Lab Inc Cathode-ray tube focusing circuit
US2625265A (en) * 1947-04-01 1953-01-13 Electric Sorting Machine Compa Photoelectric sorting apparatus
US2550960A (en) * 1947-05-21 1951-05-01 Hazeltine Research Inc Television receiver contrast and brightness control
US2698400A (en) * 1947-06-03 1954-12-28 Sylvania Electric Prod Generator for dynamic focusing of cathode ray tubes
US2447804A (en) * 1947-08-14 1948-08-24 Paul F G Holst Electron beam focusing circuit
US2564554A (en) * 1947-10-09 1951-08-14 Rca Corp Background control and synchronizing signal separating circuit
US2577112A (en) * 1948-04-09 1951-12-04 Rca Corp High-voltage power supply regulation
US2800528A (en) * 1949-06-23 1957-07-23 Du Mont Allen B Lab Inc Video amplifier bridge circuit for minimizing supply voltage variations
US2567377A (en) * 1949-12-06 1951-09-11 Stromberg Carlson Co Automatic focus control means for cathode-ray tubes
US2617964A (en) * 1949-12-30 1952-11-11 Philco Corp Current-limiting circuit for cathode-ray tubes
US2611881A (en) * 1950-05-24 1952-09-23 Du Mont Allen B Lab Inc Television receiver
US2656486A (en) * 1950-09-28 1953-10-20 Du Mont Allen B Lab Inc Stabilized television circuit
US2677786A (en) * 1950-10-21 1954-05-04 Motorola Inc Television circuit
US2688712A (en) * 1950-10-28 1954-09-07 Samuel A Procter Television receiver
US2658164A (en) * 1950-11-03 1953-11-03 Du Mont Allen B Lab Inc Focus circuit for cathode-ray tubes
US2623195A (en) * 1951-01-04 1952-12-23 Nolan R Best Cathode-ray dynamic focusing circuit
US2628326A (en) * 1951-03-10 1953-02-10 Zenith Radio Corp Television apparatus
NL183119B (nl) * 1952-11-26 Norda Inc Werkwijze voor de bereiding van vrijstromende deeltjesvormige, aromastoffen houdende mengsels.
US2888604A (en) * 1955-09-22 1959-05-26 Westinghouse Electric Corp Circuit for increasing the usable light output of cathode ray tubes
US3163714A (en) * 1961-03-30 1964-12-29 Gen Electric Automatic brightness control

Also Published As

Publication number Publication date
FR861968A (fr) 1941-02-22
FR868097A (fr) 1941-12-15
US2255485A (en) 1941-09-09
US2255484A (en) 1941-09-09

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