GB354572A - - Google Patents

Info

Publication number
GB354572A
GB354572A GB25761/30A GB2576130A GB354572A GB 354572 A GB354572 A GB 354572A GB 25761/30 A GB25761/30 A GB 25761/30A GB 2576130 A GB2576130 A GB 2576130A GB 354572 A GB354572 A GB 354572A
Authority
GB
United Kingdom
Prior art keywords
movement
scanning
television
disc
film
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
GB25761/30A
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.)
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
Publication of GB354572A publication Critical patent/GB354572A/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
    • H04N5/04—Synchronising
    • H04N5/06—Generation of synchronising signals
    • 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
    • H04N3/04—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving aperture also apertures covered by lenses
    • 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
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/30—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical otherwise than with constant velocity or otherwise than in pattern formed by unidirectional, straight, substantially horizontal or vertical lines
    • H04N3/34—Elemental scanning area oscillated rapidly in direction transverse to main scanning direction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Facsimiles In General (AREA)
  • Optical Communication System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

354,572. Television. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats-Unis, Montrouge, Seine, France. Aug. 28, 1930, No. 25761. Convention date, Sept. 25, 1929. [Class 40 (iii).] In television scanning consisting of two sweepings f1, f2 in opposite directions performed in less than one-tenth of a second to avoid the appearance of displacement of the bottom of the image caused if the slower component of the scanning movement is in one direction only, alternate bands of the object are transmitte d during one movement, and the bands omitted during the first movement are transmitted in the second movement. In the transmission of cinema films a scanning-disc is used with holes in two half spira s of different pitch and opposite sign, and the film is moved continuously. Alternatively the same scanning-disc is used as in ordinary television transmission, and the film is moved in jerks.
GB25761/30A 1929-09-25 1930-08-28 Expired GB354572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1928553X 1929-09-25

Publications (1)

Publication Number Publication Date
GB354572A true GB354572A (en) 1931-08-13

Family

ID=9682313

Family Applications (2)

Application Number Title Priority Date Filing Date
GB25761/30A Expired GB354572A (en) 1929-09-25 1930-08-28
GB10765/36A Expired GB471825A (en) 1929-09-25 1936-04-14 Improvements in or relating to television, telecinematograph and like devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB10765/36A Expired GB471825A (en) 1929-09-25 1936-04-14 Improvements in or relating to television, telecinematograph and like devices

Country Status (5)

Country Link
US (1) US1928553A (en)
BE (2) BE371729A (en)
DE (1) DE694830C (en)
FR (2) FR697932A (en)
GB (2) GB354572A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2804848A (en) * 1954-09-30 1957-09-03 Chicago Pneumatic Tool Co Drilling apparatus

Also Published As

Publication number Publication date
FR697932A (en) 1931-01-23
GB471825A (en) 1937-09-13
BE414981A (en)
FR46726E (en) 1936-08-10
US1928553A (en) 1933-09-26
DE694830C (en) 1940-08-09
BE371729A (en) 1930-08-30

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