GB626592A - Improvements relating to the transmission of television signals on ultra-short waves - Google Patents

Improvements relating to the transmission of television signals on ultra-short waves

Info

Publication number
GB626592A
GB626592A GB21429/47A GB2142947A GB626592A GB 626592 A GB626592 A GB 626592A GB 21429/47 A GB21429/47 A GB 21429/47A GB 2142947 A GB2142947 A GB 2142947A GB 626592 A GB626592 A GB 626592A
Authority
GB
United Kingdom
Prior art keywords
transmission
ultra
guide
short waves
television signals
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
GB21429/47A
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.)
Thales SA
Original Assignee
CSF Compagnie Generale de Telegraphie sans Fil 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 CSF Compagnie Generale de Telegraphie sans Fil SA filed Critical CSF Compagnie Generale de Telegraphie sans Fil SA
Publication of GB626592A publication Critical patent/GB626592A/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
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards
    • H04N5/40—Modulation circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/28—Amplitude modulation by means of transit-time tube
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/38—Transmitter circuitry for the transmission of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Television Systems (AREA)

Abstract

626,592. Television. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 6, 1947, No. 21429. Convention date, Aug. 9, 1946. [Class 40 (iii)] [Also in Group XL (c)] Ultra-short waves propagated through a wave-guide B are modulated separately by the synchronizing signals and the image signals of a television transmission, the synchronizing signals being applied through a phase-shifter D to the control grid C of a klystron generator A feeding the guide, and the image signals being fed to the control element of a modulating valve C (e.g. a magnetron) which acts as a variable capacity and varies the transmission of the waves along the guide in the manner described in Specification 611,931, [Group XL (c)].
GB21429/47A 1946-08-09 1947-08-06 Improvements relating to the transmission of television signals on ultra-short waves Expired GB626592A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR832776X 1946-08-09

Publications (1)

Publication Number Publication Date
GB626592A true GB626592A (en) 1949-07-18

Family

ID=9296163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21429/47A Expired GB626592A (en) 1946-08-09 1947-08-06 Improvements relating to the transmission of television signals on ultra-short waves

Country Status (4)

Country Link
BE (1) BE473816A (en)
DE (1) DE832776C (en)
FR (1) FR932114A (en)
GB (1) GB626592A (en)

Also Published As

Publication number Publication date
DE832776C (en) 1952-02-28
FR932114A (en) 1948-03-12
BE473816A (en)

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