SE8002228L - Uppteckningsberare med en optiskt lesbar informationsstruktur - Google Patents

Uppteckningsberare med en optiskt lesbar informationsstruktur

Info

Publication number
SE8002228L
SE8002228L SE8002228A SE8002228A SE8002228L SE 8002228 L SE8002228 L SE 8002228L SE 8002228 A SE8002228 A SE 8002228A SE 8002228 A SE8002228 A SE 8002228A SE 8002228 L SE8002228 L SE 8002228L
Authority
SE
Sweden
Prior art keywords
information
optically readable
areas
information structure
readable information
Prior art date
Application number
SE8002228A
Other languages
Unknown language ( )
English (en)
Inventor
J J M Braat
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of SE8002228L publication Critical patent/SE8002228L/sv

Links

Classifications

    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24085—Pits
    • 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
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • G11B7/2407—Tracks or pits; Shape, structure or physical properties thereof
    • G11B7/24073—Tracks
    • G11B7/24079—Width or depth

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
SE8002228A 1979-03-27 1980-03-24 Uppteckningsberare med en optiskt lesbar informationsstruktur SE8002228L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7902363A NL7902363A (nl) 1979-03-27 1979-03-27 Registratiedrager met een optisch uitleesbare informa- tiestruktuur.

Publications (1)

Publication Number Publication Date
SE8002228L true SE8002228L (sv) 1980-09-28

Family

ID=19832872

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002228A SE8002228L (sv) 1979-03-27 1980-03-24 Uppteckningsberare med en optiskt lesbar informationsstruktur

Country Status (13)

Country Link
US (1) US4499574A (sv)
JP (1) JPS55132538A (sv)
AT (1) AT368311B (sv)
AU (1) AU535939B2 (sv)
BE (1) BE882425A (sv)
CA (1) CA1164558A (sv)
DE (1) DE3011176A1 (sv)
ES (1) ES8100519A1 (sv)
FR (1) FR2452759A1 (sv)
GB (1) GB2045997B (sv)
IT (1) IT1128073B (sv)
NL (1) NL7902363A (sv)
SE (1) SE8002228L (sv)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3172850D1 (en) * 1980-12-17 1985-12-12 Matsushita Electric Ind Co Ltd Optical disk having an index mark
EP0081138B1 (en) * 1981-12-01 1987-10-21 Matsushita Electric Industrial Co., Ltd. Optical recording and reproducing disc
JPS5919250A (ja) * 1982-07-21 1984-01-31 Hitachi Ltd 情報の記録再生装置
NL8500152A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van vooraf aangebrachte en optisch detekteerbare servospoorgedeelten en sektoradressen.
NL8500153A (nl) * 1985-01-22 1986-08-18 Philips Nv Registratiedragerlichaam voorzien van een reliefstruktuur van optisch detekteerbare servospoorgedeelten en sektoradressen en inrichting voor het aanbrengen van deze struktuur.
SE447313B (sv) * 1985-03-19 1986-11-03 Ericsson Telefon Ab L M Databerare i form av ett foretredesvis rektangulert kort med ett cirkulert omrade for tet optisk registrering av data
JPS6410463A (en) * 1987-07-01 1989-01-13 Sony Corp Magnetic disk
JPS648514A (en) * 1987-07-01 1989-01-12 Canon Kk Method and device for reproducing optical information and optical information recording medium
JPS6474411A (en) * 1987-09-16 1989-03-20 Yamaha Corp Position detector
JPH0253237A (ja) * 1988-08-16 1990-02-22 Ricoh Co Ltd 光学式情報記録媒体
US5229901A (en) * 1991-06-28 1993-07-20 Digital Equipment Corporation Side-by-side read/write heads with rotary positioner
US5452285A (en) * 1993-09-30 1995-09-19 Polaroid Corporation Uniformly distributed servo data for optical information storage medium
JP2003248168A (ja) * 2001-12-21 2003-09-05 Konica Corp 光ピックアップ装置、および光学素子

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7212015A (sv) * 1972-09-04 1974-03-06
NL172111C (nl) * 1973-07-02 1983-07-01 Philips Nv Registratiedrager waarop informatie is vastgelegd in een optische struktuur en inrichting voor het inschrijven van een dergelijke registratiedrager.
US4118734A (en) * 1974-02-14 1978-10-03 U.S. Philips Corporation Optical videodisc with variable width tracks
FR2330108A1 (fr) * 1975-10-31 1977-05-27 Hitachi Ltd Appareil de restitution d'informations
JPS5369006A (en) * 1976-11-30 1978-06-20 Sony Corp Reproducer of disc form signal recording media
US4157460A (en) * 1977-09-22 1979-06-05 Cbs Inc. Apparatus for cutting audio disks
NL187413C (nl) * 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.

Also Published As

Publication number Publication date
FR2452759A1 (fr) 1980-10-24
IT1128073B (it) 1986-05-28
IT8067451A0 (it) 1980-03-24
GB2045997A (en) 1980-11-05
AU535939B2 (en) 1984-04-12
ATA159880A (de) 1982-01-15
GB2045997B (en) 1982-12-01
AU5671980A (en) 1980-10-02
AT368311B (de) 1982-10-11
ES489885A0 (es) 1980-11-01
BE882425A (fr) 1980-09-25
FR2452759B1 (sv) 1983-03-25
CA1164558A (en) 1984-03-27
JPS55132538A (en) 1980-10-15
NL7902363A (nl) 1980-09-30
DE3011176A1 (de) 1980-10-09
ES8100519A1 (es) 1980-11-01
DE3011176C2 (sv) 1989-06-15
JPH0356037B2 (sv) 1991-08-27
US4499574A (en) 1985-02-12

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