FR2436540A1 - Generateur de signal video et dispositif de traitement video, notamment pour dispositif de lecture d'informations enregistrees sur film - Google Patents

Generateur de signal video et dispositif de traitement video, notamment pour dispositif de lecture d'informations enregistrees sur film

Info

Publication number
FR2436540A1
FR2436540A1 FR7929701A FR7929701A FR2436540A1 FR 2436540 A1 FR2436540 A1 FR 2436540A1 FR 7929701 A FR7929701 A FR 7929701A FR 7929701 A FR7929701 A FR 7929701A FR 2436540 A1 FR2436540 A1 FR 2436540A1
Authority
FR
France
Prior art keywords
film
information recorded
signal generator
video signal
reading information
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.)
Withdrawn
Application number
FR7929701A
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.)
Computer Microfilm International Corp
Original Assignee
Computer Microfilm International Corp
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 Computer Microfilm International Corp filed Critical Computer Microfilm International Corp
Publication of FR2436540A1 publication Critical patent/FR2436540A1/fr
Withdrawn legal-status Critical Current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
    • H04N1/047—Detection, control or error compensation of scanning velocity or position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0016—Selecting or retrieving of images by means of their associated code-marks, e.g. coded microfilm or microfiche
    • 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
    • H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
    • 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
    • H04N1/00567—Handling of original or reproduction media, e.g. cutting, separating, stacking
    • H04N1/0057—Conveying sheets before or after scanning
    • 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
    • H04N1/10—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 flat picture-bearing surfaces
    • H04N1/1004—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 flat picture-bearing surfaces using two-dimensional electrical scanning, e.g. cathode-ray tubes
    • 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
    • H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
    • H04N1/3872—Repositioning or masking
    • H04N1/3873—Repositioning or masking defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming
    • H04N1/3875—Repositioning or masking defined only by a limited number of coordinate points or parameters, e.g. corners, centre; for trimming combined with enlarging or reducing
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0404—Scanning transparent media, e.g. photographic film
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0404—Scanning transparent media, e.g. photographic film
    • H04N2201/041—Scanning microfilms or microfiches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
    • H04N2201/0432—Adjusting the orientation of the scanning elements relative to the scanned sheet, e.g. changing from longitudinal to lateral scanning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04703—Detection of scanning velocity or position using the scanning elements as detectors, e.g. by performing a prescan
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04715—Detection of scanning velocity or position by detecting marks or the like, e.g. slits
    • H04N2201/04717—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on the scanned sheet, e.g. a reference sheet
    • H04N2201/04718—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on the scanned sheet, e.g. a reference sheet outside the image area
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04701—Detection of scanning velocity or position
    • H04N2201/04732—Detecting at infrequent intervals, e.g. once or twice per line for main-scan control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Input (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

L'invention concerne la génération d'un signal vidéo dans lequel une image est éclairée par une source lumineuse et la lumière émise est échantillonnée. On prévoit des moyens qui font varier la sensibilité de l'élément de détection en fonction des caractéristiques optiques de l'image Application à la lecture d'informations enregistrées sur film, notamment sous forme de cartes ou fiches.
FR7929701A 1978-04-10 1979-12-03 Generateur de signal video et dispositif de traitement video, notamment pour dispositif de lecture d'informations enregistrees sur film Withdrawn FR2436540A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/895,153 US4271430A (en) 1978-04-10 1978-04-10 Microfilm display apparatus

Publications (1)

Publication Number Publication Date
FR2436540A1 true FR2436540A1 (fr) 1980-04-11

Family

ID=25404083

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7929701A Withdrawn FR2436540A1 (fr) 1978-04-10 1979-12-03 Generateur de signal video et dispositif de traitement video, notamment pour dispositif de lecture d'informations enregistrees sur film
FR7929702A Withdrawn FR2436439A1 (fr) 1978-04-10 1979-12-03 Dispositif destine a presenter des affichages simultanes de plusieurs images pour un systeme de selection et d'affichage d'information enregistree sur film

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR7929702A Withdrawn FR2436439A1 (fr) 1978-04-10 1979-12-03 Dispositif destine a presenter des affichages simultanes de plusieurs images pour un systeme de selection et d'affichage d'information enregistree sur film

Country Status (4)

Country Link
US (1) US4271430A (fr)
JP (1) JPS5588180A (fr)
CA (1) CA1114752A (fr)
FR (2) FR2436540A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571638A (en) * 1983-05-02 1986-02-18 Datacopy Corporation Random-access electronic camera
US4616263A (en) * 1985-02-11 1986-10-07 Gte Corporation Video subsystem for a hybrid videotex facility
US4996714A (en) * 1990-05-23 1991-02-26 Frisco Bay Industries Of Canada Limited Computerized filing and retrieval system for signature and pictorial documentation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697746A (en) * 1951-05-24 1954-12-21 Rca Corp Television program signal distribution system
US3047741A (en) * 1959-05-01 1962-07-31 Mechron Multiple channel electronic switching circuit
US3117183A (en) * 1961-01-16 1964-01-07 Minnesota Mining & Mfg Flying spot scanner with beam centering circuit
GB974441A (en) * 1962-06-20 1964-11-04 Marconi Instruments Ltd Improvements in or relating to television cameras and the like
US3539715A (en) * 1964-02-26 1970-11-10 Jerome H Lemelson Information storage and reproduction system
US3803350A (en) * 1969-03-17 1974-04-09 J Lemelson Record card scanning apparatus
US3612762A (en) * 1969-03-26 1971-10-12 Itt Automatic gain control system for camera tube
US3702898A (en) * 1970-08-04 1972-11-14 Nasa Electronic video editor
US4021841A (en) * 1975-12-31 1977-05-03 Ralph Weinger Color video synthesizer with improved image control means
FR2337907A1 (fr) * 1976-01-08 1977-08-05 Richard Pierre Maxence Systeme de gestion automatique de micro-images

Also Published As

Publication number Publication date
JPS5588180A (en) 1980-07-03
CA1114752A (fr) 1981-12-22
US4271430A (en) 1981-06-02
FR2436439A1 (fr) 1980-04-11

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