GB308695A - Improvements relating to the electric transmission of pictures - Google Patents

Improvements relating to the electric transmission of pictures

Info

Publication number
GB308695A
GB308695A GB9733/29A GB973329A GB308695A GB 308695 A GB308695 A GB 308695A GB 9733/29 A GB9733/29 A GB 9733/29A GB 973329 A GB973329 A GB 973329A GB 308695 A GB308695 A GB 308695A
Authority
GB
United Kingdom
Prior art keywords
sheet
copying
fed
replaced
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
GB9733/29A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB308695A publication Critical patent/GB308695A/en
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
    • H04N1/0628—Scanning a concave surface, e.g. with internal drum type scanners using a picture-bearing surface stationary in the main-scanning direction using several scanning heads circumferentially spaced from one another and circumferentially aligned, e.g. mounted on a rotating disk
    • 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
    • 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
    • H04N1/12—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 the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Discharge By Other Means (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

308,695. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W.). March 26, 1928, [Convention date]. Copying-telegraphs.-A copying-telegraph includes means 1, 2 to support or guide a picture or sensitive sheet 3 and a rotatable member 11 with means 5, 7 for projecting light on the sheet.. At the transmitter the reflected light is collected by a lens 16 or 18 also mounted on the rotating hollow shaft 11 and is reflected by prisms 15, 17 through the centre of the shaft and the teeth of a rotating disc 9 to a light sensitive cell 8. At the receiver the cell is replaced by a lightsource, and the interrupting disc and lenses 5. 7 are dispensed with (Fig. 2, not shown). The sheet is fed to the apparatus by endless bands (Fig. 3, not shown). According to modifications : the guides 1, 2 are replaced by a movable support with a T-shaped member moving in a stationary guide (Fig. 4, not shown); the sheet is fed through a semi-cirular slot in the bottom of a containing cabinet (Fig. 5, not shown).
GB9733/29A 1928-03-26 1929-03-26 Improvements relating to the electric transmission of pictures Expired GB308695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US264714A US1792264A (en) 1928-03-26 1928-03-26 Transmission of pictures

Publications (1)

Publication Number Publication Date
GB308695A true GB308695A (en) 1930-09-26

Family

ID=23007293

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9733/29A Expired GB308695A (en) 1928-03-26 1929-03-26 Improvements relating to the electric transmission of pictures

Country Status (3)

Country Link
US (1) US1792264A (en)
GB (1) GB308695A (en)
NL (1) NL26337C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567307A (en) * 1946-06-12 1951-09-11 Western Union Telegraph Co System and apparatus involving optical scanning
US2930668A (en) * 1955-07-16 1960-03-29 Askania Werke Ag Position indicator
US4212037A (en) * 1969-03-17 1980-07-08 Lemelson Jerome H Method for scanning a card with video signal
US4084198A (en) * 1964-12-10 1978-04-11 Lemelson Jerome H Card scanning video system
US3314074A (en) * 1965-01-22 1967-04-11 Prec Instr Company Coherent light beam recorder
US3427631A (en) * 1967-02-01 1969-02-11 Rca Corp Light beam recorder using vibrated lens system
US3488658A (en) * 1967-12-27 1970-01-06 Schlumberger Technology Corp Methods and apparatus for recording well logging signals
US4322759A (en) * 1970-03-27 1982-03-30 Zenzefilis George E Method and apparatus for recording and reproducing video
JPS5651406B2 (en) * 1972-12-23 1981-12-05
US4262594A (en) * 1978-12-22 1981-04-21 Logescan Systems, Inc. Method and apparatus for manipulating and transporting image media
US4334770A (en) * 1978-12-22 1982-06-15 Logetronics, Inc. Method and apparatus for manipulating and transporting image media
CA2146052A1 (en) * 1994-04-07 1995-10-08 Mervin Leon Gangstead Optical scanning system
DE69706600T2 (en) * 1996-04-30 2002-06-06 Agfa Corp Imager with virtual drum recording inside and capstan drive
US6396042B1 (en) 1999-10-19 2002-05-28 Raytheon Company Digital laser image recorder including delay lines

Also Published As

Publication number Publication date
US1792264A (en) 1931-02-10
NL26337C (en)

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