FR2188231A1 - - Google Patents

Info

Publication number
FR2188231A1
FR2188231A1 FR7315079A FR7315079A FR2188231A1 FR 2188231 A1 FR2188231 A1 FR 2188231A1 FR 7315079 A FR7315079 A FR 7315079A FR 7315079 A FR7315079 A FR 7315079A FR 2188231 A1 FR2188231 A1 FR 2188231A1
Authority
FR
France
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Withdrawn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
FR7315079A
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.)
Ampex Corp
Original Assignee
Ampex 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 Ampex Corp filed Critical Ampex Corp
Publication of FR2188231A1 publication Critical patent/FR2188231A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06K7/015—Aligning or centering of the sensing device with respect to the record carrier
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
    • G06V30/10—Character recognition
    • G06V30/14—Image acquisition
    • G06V30/146—Aligning or centring of the image pick-up or image-field
    • G06V30/1475—Inclination or skew detection or correction of characters or of image to be recognised
    • G06V30/1478—Inclination or skew detection or correction of characters or of image to be recognised of characters or characters lines
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/60—Guiding record carrier
    • G11B15/602—Guiding record carrier for track selection, acquisition or following
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Multimedia (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
FR7315079A 1972-05-01 1973-04-26 Withdrawn FR2188231A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24920272A 1972-05-01 1972-05-01

Publications (1)

Publication Number Publication Date
FR2188231A1 true FR2188231A1 (fr) 1974-01-18

Family

ID=22942460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7315079A Withdrawn FR2188231A1 (fr) 1972-05-01 1973-04-26

Country Status (5)

Country Link
US (1) US3739154A (fr)
JP (1) JPS4942304A (fr)
DE (1) DE2320857A1 (fr)
FR (1) FR2188231A1 (fr)
NL (1) NL7304615A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392464A1 (fr) * 1977-05-23 1978-12-22 Dbx Appareil et procede de reproduction de sons a partir de signaux sonores enregistres optiquement
FR2514913A1 (fr) * 1981-10-16 1983-04-22 Cii Honeywell Bull Dispositif opto-electronique de lecture d'informations contenues sur un support magnetique

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851335A (en) * 1973-07-30 1974-11-26 Ibm Buffer systems
EP0076347B1 (fr) * 1974-10-21 1987-02-04 Drc-Soundstream Inc. Appareil d'interception de segment de piste optique
US4536866A (en) * 1978-11-30 1985-08-20 Videonics Of Hawaii, Inc. Information retrieval system and apparatus
JPS55142424A (en) * 1979-04-18 1980-11-07 Ibm Sensor for optical data memory
JPS5667277A (en) * 1979-11-05 1981-06-06 Canon Inc Laser recording device
US4588882A (en) * 1984-06-06 1986-05-13 Drexler Technology Corporation Skew detection system for optically read data
US4937810A (en) * 1986-04-23 1990-06-26 Drexler Technology Corporation Optical recording tape with continuous prerecorded tracks
DE4233655A1 (de) * 1992-10-07 1994-04-14 Futurum X Unternehmungsberatun Verfahren zur Langzeitspeicherung elektronischer Daten auf einem optisch auslesbaren Trägermedium
US6929184B2 (en) * 2003-11-05 2005-08-16 Symbol Technologies, Inc. Monitoring bi-directional motor drive failure in electro-optical reader

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2392464A1 (fr) * 1977-05-23 1978-12-22 Dbx Appareil et procede de reproduction de sons a partir de signaux sonores enregistres optiquement
FR2514913A1 (fr) * 1981-10-16 1983-04-22 Cii Honeywell Bull Dispositif opto-electronique de lecture d'informations contenues sur un support magnetique
EP0077693A1 (fr) * 1981-10-16 1983-04-27 Bull S.A. Dispositif opto-électronique de lecture d'informations contenues sur un support magnétique

Also Published As

Publication number Publication date
NL7304615A (fr) 1973-11-05
US3739154A (en) 1973-06-12
DE2320857A1 (de) 1973-11-15
JPS4942304A (fr) 1974-04-20

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Legal Events

Date Code Title Description
ST Notification of lapse