GB528354A - Improvements in or relating to television transmitters - Google Patents

Improvements in or relating to television transmitters

Info

Publication number
GB528354A
GB528354A GB13401/39A GB1340139A GB528354A GB 528354 A GB528354 A GB 528354A GB 13401/39 A GB13401/39 A GB 13401/39A GB 1340139 A GB1340139 A GB 1340139A GB 528354 A GB528354 A GB 528354A
Authority
GB
United Kingdom
Prior art keywords
illuminated
cell
light
television transmitters
relating
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
GB13401/39A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
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 Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB528354A publication Critical patent/GB528354A/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
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

528,354. Television transmitters. PHILIPS LAMPS, Ltd. May 4, 1939, No. 13401. Convention date, May 7, 1938. [Class 40 (iii)] Undesired signal components due to the object being illuminated from a source energized by alternating current are eliminated by mixing with the picture signals the output of a light-cell illuminated by the same source. The scene may be imaged as a whole on the light-cell, or the cell may be illuminated by light reflected from the screen of the transmitting cathode-ray tube.
GB13401/39A 1938-05-07 1939-05-04 Improvements in or relating to television transmitters Expired GB528354A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL528354X 1938-05-07

Publications (1)

Publication Number Publication Date
GB528354A true GB528354A (en) 1940-10-28

Family

ID=19787099

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13401/39A Expired GB528354A (en) 1938-05-07 1939-05-04 Improvements in or relating to television transmitters

Country Status (2)

Country Link
FR (1) FR854326A (en)
GB (1) GB528354A (en)

Also Published As

Publication number Publication date
FR854326A (en) 1940-04-10

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