US1800000A - Wireless picture transmission - Google Patents

Wireless picture transmission Download PDF

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Publication number
US1800000A
US1800000A US361900A US36190029A US1800000A US 1800000 A US1800000 A US 1800000A US 361900 A US361900 A US 361900A US 36190029 A US36190029 A US 36190029A US 1800000 A US1800000 A US 1800000A
Authority
US
United States
Prior art keywords
light
picture
rays
shaft
picture transmission
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 - Lifetime
Application number
US361900A
Other languages
English (en)
Inventor
Vladimir K Zworykin
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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
Priority to BE370175D priority Critical patent/BE370175A/xx
Application filed by Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Priority to US361900A priority patent/US1800000A/en
Priority to FR694777D priority patent/FR694777A/fr
Priority to DE1930570382D priority patent/DE570382C/de
Application granted granted Critical
Publication of US1800000A publication Critical patent/US1800000A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • gcephs ⁇ developed;loe-fere suchpioteres or document couldl beutlzed in e fecsimlesages or @nctureeepon lopeqlle .surfaces ⁇ may prevemengt over ⁇ .the inventolc ⁇ disclosed Ete 3?1 my bluntgeppleetonr end has, es ⁇ ceci of its objects, ⁇ ce proyde@5fecsiInile-transmite,l
  • p 1 maybe transmitted ⁇ without interrupting the devicewiblrnewmetter l(0r-1,stoppingcheres,"
  • transmitting device comprising a preferred.
  • FIG. 1 is a top plan view ofi-.facsimileembodiment of my invention.
  • Fig. 2 is a vertical .sectional viewof the apparatus, taken' along'a line corresponding to the line II-II ofFig. 1.
  • FIG. 3 isan end elevational vievv'of the apparatus, looking toward the left.
  • Fig. 4 is an end elevational view vtion of a receivingy device.
  • Fig. 5 is av vertical sectionalview, taken along a line corresponding to the lineVY ofFig. 4; and Y Fig. 6 is a'vertical sectionalview olf-'an alternative-form ⁇ of transmitting scanning device. f'
  • FIG. 1 The apparatusillustrated in Figs. 1 and 2-comprisesv a housing 1' wherein is disposed a -rotatingscann'ing device hereinafter'to be described indetail, 'a' housing V2l adapted to containa photo-electric cell 3 and a housing L4v adapted to'contain la light source 5.
  • a Means comprising aplurality of vendless cords', are'providedf'or conveying a'picture to be transmitted past the vrotating scanning device, each of the'said cords'exten'dingbef tween al pluralityof pulleys 7 and 8.
  • the motive power for; the cord-conveyor is sup; plied bya motori() connected, by appropriate gearing, to a'vertica'l spindle Y11 on which'the. pulleys 8 are mounted.
  • Motivepower forV the scanning device is provided by a separate electric inotor 12j i l Y i' will be more vclearly seen from anf'inspection of Fig. 2.
  • The'said device comprises ya holf i. low shaft 13 rotatably supportedin appropriate Ahearings l14 and having a pinion '15 mountedthereon'.
  • The'pinion is operatively connected to a wormwheel'nl mounted'upon theshaftof thejmotor12.' i
  • .a1-plurality of iense's'- 17 are' many die; posed withi'nithe hollowjshaftfl 'and serve to f'z'oncentratel li'ghtvfrom the" source y5, con-l tained within the housing 4, upon'a plurality offprismslS- that are affixed to the'end of the i hollow'shaf-tfarthest"from the light source.
  • Each''of the prisms l18 isso disposed with respect toa plurality of hollow arms 2.0 that' extendl'a'tright Vanglesto'the axis of the shaft-Y l'thatl light ,from the ysource 5 ,is :reflected from the'said prisms througha pluralityof lenses21-carried ⁇ bythe hollow.
  • ArmsV and '23 which of a piorf variations'inl the picture "or message.
  • Theshielding device is provided with an opening (not shown) through which the light passes to fall upon the picture.
  • each of the hollow extensions carrying the concentrating lenses 21 is provided with a coaxial parabolic mirror 24, the focus ofV which is coincident Vwith the point inthe plane of thefpaper at which-'the light' from the source is focused.
  • eachjof the saidextensions passes through a mirror 25 disposed at anangle of 45""tothe ax1sv'of the hollow shaft, 'which/mirror'gathers thelight from the parabolic mirror and reflects it toward the photocell mounted' in thek housing 2L
  • the housing'for the scanning device is'.y preferably provided with an eye,p1ece'26,
  • the means for providing a rotating beam of light comprises a driven shaft 30 to one end of which is affixed a hollow T-sliape extension 3l.
  • the glow tube or other appropriate light source, is connected to the output terminals of an amplifier (not shown) and the light therefrom isthus caused to vary in intensity proportionally to the incoming signal.
  • the photo-sensitive strip is caused to assume a cylindrical shape ⁇ by reason of the small rollers 23 and the shielding device 22, the rotating T-shape extension carrying the lenses 34 traces a series of parallel lines across the said photo-sensitive surface.
  • Vpicture will be received in the form of a plurality of fine lines, each ofl which varies throughout its length in accordance with the illumination furnished by the glow tube.
  • FIG. 6 An extremely important modification of my invention is illustrated in Fig. 6. This modification is, in many respects, ⁇ the "same Y as the embodiment shown in Figs. 1, 2 ⁇ and 3, with the exception that the lens-carrying extension 31 is disposed angularly with re. ⁇
  • a facsimile-transmitting-receiving system means for moving a light-receiving surface, and means for causing a plurality of rays of light to so rotate in proximity to said ice moving surface as to trace af pluralityof i .pathsthereom said light rays being angularly disposed with respect to their axes of rota-l tion and so spaced apart fromeach other in the direction ofsaid axes, andthe speed of movement of said surface being so correlated with the angular velocity of said rays, that each element of said surface is tracedby more than one of said rays.
  • a source of light for deriving from saidsource a plurality ofl ⁇ light-rays that diverge at differing ⁇ angles from a reference axis, means for causing said rays to rotate about said axis, and means for causing a light-receiving surface to so move in adirection parallel to said axis as to be cyclically subjecteu tothe action of said rays.
  • a source of light means ⁇ for deriving two diverging light rays from sai-d source, means for causing said light rays ies" rie
  • a facsimile-transmitting-receiving system means for moving a light-receiving surface, means for causing a plurality of an gularly separated rays oflight to so rotate in y proXimity't-o said' moving surface as to trace a l plurality of paths thereon transverse to the y direction of movement thereof, and a plurality of rotating reflecting devices, one foreach lightray,1for gathering light reflected from said surface and directing it along the axis of rotation of said rays.
  • Y Y 1 ⁇ 6 The combination 'called for by claim 5 Whereinthe reflectingy devices are eachroonstituted by a parabolic mirror and a plane mirror.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
US361900A 1929-05-10 1929-05-10 Wireless picture transmission Expired - Lifetime US1800000A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BE370175D BE370175A (fr) 1929-05-10
US361900A US1800000A (en) 1929-05-10 1929-05-10 Wireless picture transmission
FR694777D FR694777A (fr) 1929-05-10 1930-04-30 Perfectionnements dans les transmissions sans fil des images
DE1930570382D DE570382C (de) 1929-05-10 1930-05-02 Sende- und Empfangsvorrichtung fuer Bildtelegraphie unter Verwendung umlaufender Abtastvorrichtungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US361900A US1800000A (en) 1929-05-10 1929-05-10 Wireless picture transmission

Publications (1)

Publication Number Publication Date
US1800000A true US1800000A (en) 1931-04-07

Family

ID=23423855

Family Applications (1)

Application Number Title Priority Date Filing Date
US361900A Expired - Lifetime US1800000A (en) 1929-05-10 1929-05-10 Wireless picture transmission

Country Status (4)

Country Link
US (1) US1800000A (fr)
BE (1) BE370175A (fr)
DE (1) DE570382C (fr)
FR (1) FR694777A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435250A (en) * 1944-02-25 1948-02-03 Western Union Telegraph Co Inside scanning facsimile recorder
US3064077A (en) * 1959-01-29 1962-11-13 Technitrol Inc Indicia transfer system
US3100242A (en) * 1960-04-25 1963-08-06 Newspaper Entpr Ass Inc Multiple lens facsimile scanner
EP0282719A1 (fr) * 1987-02-17 1988-09-21 Siemens Aktiengesellschaft Appareil d'analyse pour feuilles lumineuses de stockage
US20110151050A1 (en) * 2004-05-11 2011-06-23 Kraft Foods Global Brands Llc Gum slab package with flap retention
US20110232235A1 (en) * 2004-05-11 2011-09-29 Kraft Foods Global Brands Llc Method for forming a package assembly for dispensing and retaining gum slabs with adhesive securement
US8607980B2 (en) 2009-02-02 2013-12-17 Kraft Foods Global Brands Llc Openable and reclosable sealed package for confectionery products

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435250A (en) * 1944-02-25 1948-02-03 Western Union Telegraph Co Inside scanning facsimile recorder
US3064077A (en) * 1959-01-29 1962-11-13 Technitrol Inc Indicia transfer system
US3100242A (en) * 1960-04-25 1963-08-06 Newspaper Entpr Ass Inc Multiple lens facsimile scanner
EP0282719A1 (fr) * 1987-02-17 1988-09-21 Siemens Aktiengesellschaft Appareil d'analyse pour feuilles lumineuses de stockage
US4827129A (en) * 1987-02-17 1989-05-02 Siemens Aktiengesellschaft Sweep device for a storage luminescent screen
US20110151050A1 (en) * 2004-05-11 2011-06-23 Kraft Foods Global Brands Llc Gum slab package with flap retention
US20110232235A1 (en) * 2004-05-11 2011-09-29 Kraft Foods Global Brands Llc Method for forming a package assembly for dispensing and retaining gum slabs with adhesive securement
US8252352B2 (en) 2004-05-11 2012-08-28 Kraft Foods Global Brands Llc Gum slab package with flap retention
US8607980B2 (en) 2009-02-02 2013-12-17 Kraft Foods Global Brands Llc Openable and reclosable sealed package for confectionery products

Also Published As

Publication number Publication date
BE370175A (fr)
FR694777A (fr) 1930-12-08
DE570382C (de) 1933-02-15

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