FR2346777A1 - Document reader with row of photodetectors - uses accelerometer and includes two integrators to provide pulse signal - Google Patents

Document reader with row of photodetectors - uses accelerometer and includes two integrators to provide pulse signal

Info

Publication number
FR2346777A1
FR2346777A1 FR7609054A FR7609054A FR2346777A1 FR 2346777 A1 FR2346777 A1 FR 2346777A1 FR 7609054 A FR7609054 A FR 7609054A FR 7609054 A FR7609054 A FR 7609054A FR 2346777 A1 FR2346777 A1 FR 2346777A1
Authority
FR
France
Prior art keywords
photodetectors
row
integrators
document reader
pulse signal
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.)
Granted
Application number
FR7609054A
Other languages
French (fr)
Other versions
FR2346777B3 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7609054A priority Critical patent/FR2346777A1/en
Publication of FR2346777A1 publication Critical patent/FR2346777A1/en
Application granted granted Critical
Publication of FR2346777B3 publication Critical patent/FR2346777B3/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10881—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices constructional details of hand-held scanners
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/01—Details
    • G06K7/016—Synchronisation of sensing process
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/10—Image acquisition

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Facsimile Heads (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

The optical document reader uses a row of photodetectors (8), a light source (4) and means supplying sampling pulses for the row of photodetectors (8), with an analogue/digital conveter (9) for the video signal. An inertial accelerometer (1) and two integrators (2, 3) used to provide the sampling pulses, supplied to a signal processing circuit (14) for cyclic sampling of the video output signals from the photodetectors (8). Pref. channel switching means (12, 13) are controlled by the signal processing circuit (14) for modifying the sampling cycle for the row of photodetectors (8).
FR7609054A 1976-03-29 1976-03-29 Document reader with row of photodetectors - uses accelerometer and includes two integrators to provide pulse signal Granted FR2346777A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7609054A FR2346777A1 (en) 1976-03-29 1976-03-29 Document reader with row of photodetectors - uses accelerometer and includes two integrators to provide pulse signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7609054A FR2346777A1 (en) 1976-03-29 1976-03-29 Document reader with row of photodetectors - uses accelerometer and includes two integrators to provide pulse signal

Publications (2)

Publication Number Publication Date
FR2346777A1 true FR2346777A1 (en) 1977-10-28
FR2346777B3 FR2346777B3 (en) 1978-12-22

Family

ID=9171075

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7609054A Granted FR2346777A1 (en) 1976-03-29 1976-03-29 Document reader with row of photodetectors - uses accelerometer and includes two integrators to provide pulse signal

Country Status (1)

Country Link
FR (1) FR2346777A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031502A2 (en) * 1979-12-31 1981-07-08 International Business Machines Corporation Hand-held apparatus for sensing non-coded images

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031502A2 (en) * 1979-12-31 1981-07-08 International Business Machines Corporation Hand-held apparatus for sensing non-coded images
EP0031502A3 (en) * 1979-12-31 1982-03-24 International Business Machines Corporation Hand-held apparatus for sensing non-coded images

Also Published As

Publication number Publication date
FR2346777B3 (en) 1978-12-22

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Legal Events

Date Code Title Description
ST Notification of lapse