US1928553A - Method of scanning images in television - Google Patents

Method of scanning images in television Download PDF

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Publication number
US1928553A
US1928553A US481493A US48149330A US1928553A US 1928553 A US1928553 A US 1928553A US 481493 A US481493 A US 481493A US 48149330 A US48149330 A US 48149330A US 1928553 A US1928553 A US 1928553A
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US
United States
Prior art keywords
television
scanning
image
scanned
scanning 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 - Lifetime
Application number
US481493A
Other languages
English (en)
Inventor
Barthelemy Rene
Roses Fontenay Aux
Duc Jean Le
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
Application granted granted Critical
Publication of US1928553A publication Critical patent/US1928553A/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
    • 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

Definitions

  • the present invention isconcerned with a sysend.
  • the holes will be distributed tem that obviates this drawback, and gives the over two semi-spirals not only of differentkbut observer an impression of fixedness of the backalso of contrary pitch.
  • the receiving. disc will 1 ground of the reconstituted image. not be changed whether television or" telecine- "(s,
  • the image matography be involved and this is the essential is scanned twice, in opposite directions, in less practical condition.
  • y y l I a T 6 o a S fi b at the sending and at v The same disc can likewise be used for send I the receiving end in order toavoid the illusion of mg cinematographic and lined images or even the displacement of the background of theimage for the television of animated subjects andthe in a fixed direction.
  • teleprinting of documents; to this end; in the I The invention has been illustrated diagramcase of cinematography and even in the case of matically in. the accompanying drawings, in teleprinting, an intermittent movement will be which: I imparted to the film as is accomplished in or- Fig.
  • Fig. 1 shows the image being scanned in one dinary moving picture technique andjadvantage direction and f v c will be taken of theinstant ofdwell ofisaidfilm
  • Fig. 2 shows the image being scanned in the opto scan the image just as if a fixed image were posite direction.
  • a concerned. v v Fig. 3 shows a scanning disc the holes of which The novel result will be to simplify the trans- 3 lie on two semi-spirals. mitting mechanism by making it more general Instead of sending out successively the contiguin character and by increasing the rapidityof ous modulated luminousbands resulting from the the teleprinting processes. l ordinary scanning operation, only half these Y We claim: p bands, for x mpl r n in n y ne 1.
  • the oth half of the bands Will be xp o y one twentieth of a second, the whole image being Sca i the'image in the pp t d tion, scanned in less than one tenth of a second,iand i. e. f2 and gives the result illustrated in Fig. 2. in then traversing said image in the opposite

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Facsimiles In General (AREA)
  • Optical Communication System (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
US481493A 1929-09-25 1930-09-12 Method of scanning images in television Expired - Lifetime US1928553A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
US1928553A true US1928553A (en) 1933-09-26

Family

ID=9682313

Family Applications (1)

Application Number Title Priority Date Filing Date
US481493A Expired - Lifetime US1928553A (en) 1929-09-25 1930-09-12 Method of scanning images in television

Country Status (5)

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

Cited By (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

Cited By (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
FR46726E (fr) 1936-08-10
DE694830C (de) 1940-08-09
BE371729A (enrdf_load_stackoverflow) 1930-08-30
FR697932A (fr) 1931-01-23
BE414981A (enrdf_load_stackoverflow)
GB471825A (en) 1937-09-13
GB354572A (enrdf_load_stackoverflow) 1931-08-13

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