GB348414A - Improvements in or relating to picture telegraph, television and like systems - Google Patents

Improvements in or relating to picture telegraph, television and like systems

Info

Publication number
GB348414A
GB348414A GB16802/30A GB1680230A GB348414A GB 348414 A GB348414 A GB 348414A GB 16802/30 A GB16802/30 A GB 16802/30A GB 1680230 A GB1680230 A GB 1680230A GB 348414 A GB348414 A GB 348414A
Authority
GB
United Kingdom
Prior art keywords
picture
effected
mirror
wheel
light
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
GB16802/30A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB348414A publication Critical patent/GB348414A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
    • H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

348,414. Television. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. May 30, 1930, No. 16802. Convention date, June 8, 1929. [Class 40 (iii).] In a system in which the scanning at the transmitting or receiving station is effected by a " Weiller " mirror-wheel in conjunction with two or more light sources so arranged that they scan different parts of the object, the light beams are brought into operation cyclically after each complete revolution of the mirror wheel so that the complete scanning of the picture is effected in a number of revolutions equal to the number of the light sources. The received signals are applied to Kerr cells K1, K2, operating in conjunction with a constant light source B, during successive rotation of the mirrorwheel S. The change-over is effected by a rotating switch U suitably geared to the mirror-wheel S. The light-sources L1, L2 (Fig. 2) may be arranged so that the points l1, l2 scan adjacent areas I, II of a picture surface P. Alternatively, Fig. 3 (not shown) the points l1, l2 may describe alternate lines on the picture area. The Kerr cells or glow lamps may be formed by a number of electrodes or cathodes respectively in a single cell construction or gas chamber. The Specification as open to inspection under Sect. 91 (3) (a) states that the light beams may simultaneously scan different parts of the picture surface. This subject-matter does not appear in the Specification as accepted.
GB16802/30A 1929-06-08 1930-05-30 Improvements in or relating to picture telegraph, television and like systems Expired GB348414A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE348414X 1929-06-08

Publications (1)

Publication Number Publication Date
GB348414A true GB348414A (en) 1931-05-14

Family

ID=6257312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16802/30A Expired GB348414A (en) 1929-06-08 1930-05-30 Improvements in or relating to picture telegraph, television and like systems

Country Status (1)

Country Link
GB (1) GB348414A (en)

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