FR809842A - Improvements to television transmission systems - Google Patents

Improvements to television transmission systems

Info

Publication number
FR809842A
FR809842A FR809842DA FR809842A FR 809842 A FR809842 A FR 809842A FR 809842D A FR809842D A FR 809842DA FR 809842 A FR809842 A FR 809842A
Authority
FR
France
Prior art keywords
transmission systems
television transmission
television
systems
transmission
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
Other languages
French (fr)
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of FR809842A publication Critical patent/FR809842A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/14Picture signal circuitry for video frequency region
    • H04N5/16Circuitry for reinsertion of dc and slowly varying components of signal; Circuitry for preservation of black or white level
    • H04N5/165Circuitry 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)
FR809842D 1935-11-30 1935-11-30 Improvements to television transmission systems Expired FR809842A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR809842T 1935-11-30

Publications (1)

Publication Number Publication Date
FR809842A true FR809842A (en) 1937-03-10

Family

ID=9253739

Family Applications (1)

Application Number Title Priority Date Filing Date
FR809842D Expired FR809842A (en) 1935-11-30 1935-11-30 Improvements to television transmission systems

Country Status (1)

Country Link
FR (1) FR809842A (en)

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