FR634793A - Perfectionnements à la télégraphie des images et analogues - Google Patents

Perfectionnements à la télégraphie des images et analogues

Info

Publication number
FR634793A
FR634793A FR634793DA FR634793A FR 634793 A FR634793 A FR 634793A FR 634793D A FR634793D A FR 634793DA FR 634793 A FR634793 A FR 634793A
Authority
FR
France
Prior art keywords
telegraphy
images
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
English (en)
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR634793A publication Critical patent/FR634793A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners
    • H04N1/0621—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction
    • H04N1/0635—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction using oscillating or rotating mirrors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/06—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using cylindrical picture-bearing surfaces, i.e. scanning a main-scanning line substantially perpendicular to the axis and lying in a curved cylindrical surface
    • H04N1/0607—Scanning a concave surface, e.g. with internal drum type scanners

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Communication System (AREA)
  • Mechanical Optical Scanning Systems (AREA)
FR634793D 1926-04-21 1927-04-12 Perfectionnements à la télégraphie des images et analogues Expired FR634793A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10557/26A GB276399A (en) 1926-04-21 1926-04-21 Improvements in or relating to picture telegraphy and the like

Publications (1)

Publication Number Publication Date
FR634793A true FR634793A (fr) 1928-02-25

Family

ID=9970030

Family Applications (1)

Application Number Title Priority Date Filing Date
FR634793D Expired FR634793A (fr) 1926-04-21 1927-04-12 Perfectionnements à la télégraphie des images et analogues

Country Status (5)

Country Link
US (1) US1740490A (fr)
BE (1) BE341615A (fr)
DE (1) DE535262C (fr)
FR (1) FR634793A (fr)
GB (1) GB276399A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2001314A1 (fr) * 1968-02-05 1969-09-26 Xerox Corp Appareil explorateur d'image a trajet unique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532799A (en) * 1944-08-01 1950-12-05 Rca Corp Facsimile system having rotating scanner moving longitudinally within stationary transparent drum
US2989586A (en) * 1956-07-09 1961-06-20 Honeywell Regulator Co Facsimile systems
US3988537A (en) * 1974-06-14 1976-10-26 Cooley Austin G Illuminating and transmitting system
US4357633A (en) * 1979-07-11 1982-11-02 Buechler Lester W Engraving apparatus and method
US4275960A (en) * 1979-08-13 1981-06-30 International Business Machines Corporation System for enhanced light uniformity in a document scanning system
DK2399673T3 (da) 2010-06-24 2013-05-27 Metso Brasil Ind E Com Ltda Valse til højtryksvalsemøller, valsemølle og fremgangsmåde til at samle en valse til en valsemølle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2001314A1 (fr) * 1968-02-05 1969-09-26 Xerox Corp Appareil explorateur d'image a trajet unique

Also Published As

Publication number Publication date
GB276399A (en) 1927-08-22
US1740490A (en) 1929-12-24
BE341615A (fr)
DE535262C (de) 1931-10-08

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