ES450938A1 - Perfeccionamientos introducidos en un portador o soporte de registro junto con un aparato para leerlo. - Google Patents

Perfeccionamientos introducidos en un portador o soporte de registro junto con un aparato para leerlo.

Info

Publication number
ES450938A1
ES450938A1 ES450938A ES450938A ES450938A1 ES 450938 A1 ES450938 A1 ES 450938A1 ES 450938 A ES450938 A ES 450938A ES 450938 A ES450938 A ES 450938A ES 450938 A1 ES450938 A1 ES 450938A1
Authority
ES
Spain
Prior art keywords
read
tracks
spacing
recording carrier
trackwise
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
ES450938A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES450938A1 publication Critical patent/ES450938A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/005—Reproducing
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
    • G11C13/04—Digital 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
ES450938A 1975-08-26 1976-08-24 Perfeccionamientos introducidos en un portador o soporte de registro junto con un aparato para leerlo. Expired ES450938A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7510035A NL7510035A (nl) 1975-08-26 1975-08-26 Registratiedrager met een optisch uitleesbare, langs sporen gerangschikte, informatiestruktuur en inrichting voor het uitlezen daarvan.

Publications (1)

Publication Number Publication Date
ES450938A1 true ES450938A1 (es) 1977-12-01

Family

ID=19824353

Family Applications (1)

Application Number Title Priority Date Filing Date
ES450938A Expired ES450938A1 (es) 1975-08-26 1976-08-24 Perfeccionamientos introducidos en un portador o soporte de registro junto con un aparato para leerlo.

Country Status (17)

Country Link
JP (1) JPS5228303A (es)
AT (1) AT351819B (es)
AU (1) AU505280B2 (es)
BE (1) BE845468A (es)
CA (1) CA1082356A (es)
CH (1) CH612781A5 (es)
DE (1) DE2636464C2 (es)
DK (1) DK378976A (es)
ES (1) ES450938A1 (es)
FR (1) FR2322418A1 (es)
GB (1) GB1516285A (es)
IT (1) IT1071416B (es)
NL (1) NL7510035A (es)
NO (1) NO762892L (es)
NZ (1) NZ181831A (es)
SE (1) SE424235B (es)
ZA (1) ZA764771B (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122551A (en) * 1977-04-08 1978-10-24 Xerox Corporation Optical data storage and retrieval system
FR2396379A1 (fr) * 1977-07-01 1979-01-26 Thomson Brandt Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations
NL7811003A (nl) * 1978-11-06 1980-05-08 Philips Nv Schijfvormige, optisch uitleesbare registratiedrager, als opslagmedium voor data-informatie.
US4484319A (en) * 1980-09-19 1984-11-20 Matsushita Electric Industrial Co., Ltd. Apparatus for locating a track on disc-like optical information carriers
JPS57105828A (en) * 1980-12-19 1982-07-01 Matsushita Electric Ind Co Ltd Optical disk recording and reproducing system
WO1984001849A1 (en) * 1982-11-01 1984-05-10 Storage Technology Partners Fine and coarse servo system for access and tracking on an optical disk
US4805162A (en) * 1982-11-01 1989-02-14 Storage Technology Partners Ii Fine and coarse servo system for access and tracking on an optical disk
NL8503411A (nl) * 1985-12-11 1987-07-01 Philips Nv Inrichting voor het bepalen van een centreringsfout van een ronde spoorvormige informatiestruktuur in een optische registratiedrager ten opzichte van de draaiingsas van een draaitafel waarop de registratiedrager is aangebracht, alsmede een apparaat voorzien van een dergelijke inrichting en een registratiedrager geschikt voor gebruik in deze inrichting.
NL8600934A (nl) * 1986-04-14 1987-11-02 Optical Storage Int Optische registratiedrager en inrichting voor het uitlezen van de registratiedrager.
US4945476A (en) * 1988-02-26 1990-07-31 Elsevier Science Publishing Company, Inc. Interactive system and method for creating and editing a knowledge base for use as a computerized aid to the cognitive process of diagnosis
DE69233335T2 (de) * 1991-12-02 2005-02-10 Koninklijke Philips Electronics N.V. Geschlossenes Informationssystem mit Kopierschutz

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2037800A1 (de) * 1970-07-30 1972-02-03 Wittmoser Schall oder Bildplatte
NL7314267A (nl) * 1973-10-17 1975-04-21 Philips Nv Registratiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur.
NL7401858A (nl) * 1974-02-12 1975-08-14 Philips Nv Registratiedrager waarop informatie is aange- t in een optisch uitleesbare struktuur.

Also Published As

Publication number Publication date
CA1082356A (en) 1980-07-22
CH612781A5 (en) 1979-08-15
DE2636464A1 (de) 1977-03-03
DE2636464C2 (de) 1984-04-05
AU505280B2 (en) 1979-11-15
FR2322418B1 (es) 1981-09-25
AT351819B (de) 1979-08-10
JPS5228303A (en) 1977-03-03
IT1071416B (it) 1985-04-10
AU1708076A (en) 1978-03-02
BE845468A (fr) 1977-02-24
ATA626776A (de) 1979-01-15
NL7510035A (nl) 1977-03-01
SE424235B (sv) 1982-07-05
SE7609291L (sv) 1977-02-27
NZ181831A (en) 1980-09-12
FR2322418A1 (fr) 1977-03-25
NO762892L (es) 1977-03-01
ZA764771B (en) 1978-03-29
DK378976A (da) 1977-02-27
GB1516285A (en) 1978-07-05

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981001