FR1500698A - Système de commutation et suiveur optique - Google Patents

Système de commutation et suiveur optique

Info

Publication number
FR1500698A
FR1500698A FR8143A FR06008143A FR1500698A FR 1500698 A FR1500698 A FR 1500698A FR 8143 A FR8143 A FR 8143A FR 06008143 A FR06008143 A FR 06008143A FR 1500698 A FR1500698 A FR 1500698A
Authority
FR
France
Prior art keywords
switching system
optical tracker
tracker
optical
switching
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
Application number
FR8143A
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 granted granted Critical
Publication of FR1500698A publication Critical patent/FR1500698A/fr
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C13/00Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K11/00Methods or arrangements for graph-reading or for converting the pattern of mechanical parameters, e.g. force or presence, into electrical signal
    • G06K11/02Automatic curve followers, i.e. arrangements in which an exploring member or beam is forced to follow the curve
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00Head arrangements not specific to the method of recording or reproducing
    • G11B21/02Driving or moving of heads
    • G11B21/08Track changing or selecting during transducing operation
    • G11B21/081Access to indexed tracks or parts of continuous track
    • G11B21/086Access to indexed tracks or parts of continuous track on tapes
    • G11B21/088Access to indexed tracks or parts of continuous track on tapes with track following of accessed part
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/002Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0033Recording, reproducing or erasing systems characterised by the shape or form of the carrier with cards or other card-like flat carriers, e.g. flat sheets of optical film
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Analogue/Digital Conversion (AREA)
FR8143A 1965-11-22 1966-11-09 Système de commutation et suiveur optique Expired FR1500698A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US50908065A 1965-11-22 1965-11-22

Publications (1)

Publication Number Publication Date
FR1500698A true FR1500698A (fr) 1966-11-03

Family

ID=24025186

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8143A Expired FR1500698A (fr) 1965-11-22 1966-11-09 Système de commutation et suiveur optique

Country Status (4)

Country Link
US (1) US3480919A (fr)
DE (1) DE1499737C3 (fr)
FR (1) FR1500698A (fr)
GB (1) GB1161102A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278999A (en) * 1979-09-12 1981-07-14 The Mead Corporation Moving image scanner
US4839876A (en) * 1987-11-23 1989-06-13 International Business Machines Corporation Track seeking using a track following loop

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575445A (en) * 1948-10-01 1951-11-20 Anthony E Neidt Scanning of sound records
US2843841A (en) * 1954-09-20 1958-07-15 Internat Telemeter Corp Information storage system
US3292168A (en) * 1962-08-13 1966-12-13 Sperry Rand Corp High resolution, head positioner system

Also Published As

Publication number Publication date
DE1499737C3 (de) 1973-11-22
US3480919A (en) 1969-11-25
DE1499737A1 (de) 1970-09-24
GB1161102A (en) 1969-08-13
DE1499737B2 (de) 1973-04-12

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