GB321750A - Improvements in or relating to television or like systems and apparatus therefor - Google Patents

Improvements in or relating to television or like systems and apparatus therefor

Info

Publication number
GB321750A
GB321750A GB24757/28A GB2475728A GB321750A GB 321750 A GB321750 A GB 321750A GB 24757/28 A GB24757/28 A GB 24757/28A GB 2475728 A GB2475728 A GB 2475728A GB 321750 A GB321750 A GB 321750A
Authority
GB
United Kingdom
Prior art keywords
television
grid
valve
relating
systems
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
GB24757/28A
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.)
Universal & General Radio Comp
Original Assignee
Universal & General Radio Comp
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 Universal & General Radio Comp filed Critical Universal & General Radio Comp
Priority to GB24757/28A priority Critical patent/GB321750A/en
Publication of GB321750A publication Critical patent/GB321750A/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
    • H04N5/30—Transforming light or analogous information into electric information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

321,750. Universal & General Radio Co., Ltd., and Myers, L. M. Aug. 28, 1928. No Patent granted (Sealing fee not paid]. Television.-In order that the picture current emitted by a television transmitter may be an alternating current whose amplitude varies in accordance with the brightness of the picture elements, the voltages derived from the usual photo-electric cell 2 are applied, after amplification by the valve 2a, to one grid 3 of a tetrode valve 4, the other grid 5 of which is subjected to alternating potential through the transformer 7. The grid bias is such that the normal plate current is approximately zero.
GB24757/28A 1928-08-28 1928-08-28 Improvements in or relating to television or like systems and apparatus therefor Expired GB321750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24757/28A GB321750A (en) 1928-08-28 1928-08-28 Improvements in or relating to television or like systems and apparatus therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24757/28A GB321750A (en) 1928-08-28 1928-08-28 Improvements in or relating to television or like systems and apparatus therefor

Publications (1)

Publication Number Publication Date
GB321750A true GB321750A (en) 1929-11-21

Family

ID=10216768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24757/28A Expired GB321750A (en) 1928-08-28 1928-08-28 Improvements in or relating to television or like systems and apparatus therefor

Country Status (1)

Country Link
GB (1) GB321750A (en)

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