CH554582A - Verfahren und einrichtung zum optischen speichern und auslesen binaerer information. - Google Patents

Verfahren und einrichtung zum optischen speichern und auslesen binaerer information.

Info

Publication number
CH554582A
CH554582A CH459073A CH459073A CH554582A CH 554582 A CH554582 A CH 554582A CH 459073 A CH459073 A CH 459073A CH 459073 A CH459073 A CH 459073A CH 554582 A CH554582 A CH 554582A
Authority
CH
Switzerland
Prior art keywords
readout
optical storage
binary information
binary
information
Prior art date
Application number
CH459073A
Other languages
English (en)
Original Assignee
Ibm
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 Ibm filed Critical Ibm
Priority to CH459073A priority Critical patent/CH554582A/de
Priority to FR7405844A priority patent/FR2223785B1/fr
Priority to DE19742408010 priority patent/DE2408010A1/de
Priority to JP49031109A priority patent/JPS49131041A/ja
Priority to GB12735/74A priority patent/GB1486271A/en
Publication of CH554582A publication Critical patent/CH554582A/de

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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/005—Programmed access to indexed parts of tracks of operating discs, by guiding the disc
    • 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • 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
    • G11C13/048—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 using other optical storage elements
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24302—Metals or metalloids
    • G11B2007/24316—Metals or metalloids group 16 elements (i.e. chalcogenides, Se, Te)
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B2007/24318—Non-metallic elements
    • G11B2007/24324—Sulfur
    • 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
    • G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
    • G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
    • G11B7/243—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials only, e.g. ablative layers
    • G11B7/2433—Metals or elements of Groups 13, 14, 15 or 16 of the Periodic Table, e.g. B, Si, Ge, As, Sb, Bi, Se or Te

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
CH459073A 1973-03-30 1973-03-30 Verfahren und einrichtung zum optischen speichern und auslesen binaerer information. CH554582A (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CH459073A CH554582A (de) 1973-03-30 1973-03-30 Verfahren und einrichtung zum optischen speichern und auslesen binaerer information.
FR7405844A FR2223785B1 (de) 1973-03-30 1974-02-13
DE19742408010 DE2408010A1 (de) 1973-03-30 1974-02-20 Einrichtung zum optischen speichern und auslesen binaerer information
JP49031109A JPS49131041A (de) 1973-03-30 1974-03-20
GB12735/74A GB1486271A (en) 1973-03-30 1974-03-21 Binary information storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH459073A CH554582A (de) 1973-03-30 1973-03-30 Verfahren und einrichtung zum optischen speichern und auslesen binaerer information.

Publications (1)

Publication Number Publication Date
CH554582A true CH554582A (de) 1974-09-30

Family

ID=4278925

Family Applications (1)

Application Number Title Priority Date Filing Date
CH459073A CH554582A (de) 1973-03-30 1973-03-30 Verfahren und einrichtung zum optischen speichern und auslesen binaerer information.

Country Status (5)

Country Link
JP (1) JPS49131041A (de)
CH (1) CH554582A (de)
DE (1) DE2408010A1 (de)
FR (1) FR2223785B1 (de)
GB (1) GB1486271A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118058A1 (de) * 1980-05-14 1982-03-11 RCA Corp., 10020 New York, N.Y. Aufzeichnungstraeger und verfahren zum schreiben einer informationsspur sowie zum loeschen einer in dem traeger gespeicherten information
JPS5911551A (ja) * 1982-07-12 1984-01-21 Toshiba Corp 光学式情報記憶媒体
US4637008A (en) * 1984-04-12 1987-01-13 Ltv Aerospace And Defense Optical erasable disk memory system utilizing duration modulated laser switching
JPS61110351A (ja) * 1984-11-05 1986-05-28 Fuji Photo Film Co Ltd 情報記録方法
EP0186911B1 (de) * 1984-12-28 1991-01-23 Kabushiki Kaisha Toshiba Auswechselbares Speichersystem
US4774702A (en) * 1986-04-03 1988-09-27 Ltv Aerospace And Defense Company Erasable optical memory employing a marmen alloy to effect phase-change erasing in a chalcogenide film
JPS6318541A (ja) * 1986-07-11 1988-01-26 Hitachi Ltd 電子線記録再生方法及びその装置

Also Published As

Publication number Publication date
DE2408010A1 (de) 1974-10-24
FR2223785B1 (de) 1976-04-30
FR2223785A1 (de) 1974-10-25
GB1486271A (en) 1977-09-21
JPS49131041A (de) 1974-12-16

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Legal Events

Date Code Title Description
PL Patent ceased