CA924810A - Optical mass memory employing amorphous thin films - Google Patents

Optical mass memory employing amorphous thin films

Info

Publication number
CA924810A
CA924810A CA102272A CA102272A CA924810A CA 924810 A CA924810 A CA 924810A CA 102272 A CA102272 A CA 102272A CA 102272 A CA102272 A CA 102272A CA 924810 A CA924810 A CA 924810A
Authority
CA
Canada
Prior art keywords
thin films
mass memory
amorphous thin
optical mass
memory employing
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
CA102272A
Other languages
English (en)
Other versions
CA102272S (en
Inventor
Feinleib Julius
F. Shaw Robert
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.)
Energy Conversion Devices Inc
Original Assignee
Energy Conversion Devices Inc
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 Energy Conversion Devices Inc filed Critical Energy Conversion Devices Inc
Application granted granted Critical
Publication of CA924810A publication Critical patent/CA924810A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00454—Recording involving phase-change effects
    • 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
    • G11B7/006—Overwriting
    • G11B7/0062—Overwriting strategies, e.g. recording pulse sequences with erasing level used for phase-change media
    • 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
    • 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)

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Optical Recording Or Reproduction (AREA)
CA102272A 1970-02-19 1971-01-08 Optical mass memory employing amorphous thin films Expired CA924810A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1262270A 1970-02-19 1970-02-19

Publications (1)

Publication Number Publication Date
CA924810A true CA924810A (en) 1973-04-17

Family

ID=21755858

Family Applications (1)

Application Number Title Priority Date Filing Date
CA102272A Expired CA924810A (en) 1970-02-19 1971-01-08 Optical mass memory employing amorphous thin films

Country Status (7)

Country Link
US (1) US3696344A (en, 2012)
JP (1) JPS549008B1 (en, 2012)
CA (1) CA924810A (en, 2012)
DE (1) DE2102215C2 (en, 2012)
FR (1) FR2080607B1 (en, 2012)
GB (1) GB1342421A (en, 2012)
NL (1) NL7101355A (en, 2012)

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US5432526A (en) * 1970-12-28 1995-07-11 Hyatt; Gilbert P. Liquid crystal display having conductive cooling
US5398041A (en) * 1970-12-28 1995-03-14 Hyatt; Gilbert P. Colored liquid crystal display having cooling
US4739396C1 (en) * 1970-12-28 2002-07-09 Gilbert P Hyatt Projection display system
US4672457A (en) * 1970-12-28 1987-06-09 Hyatt Gilbert P Scanner system
US4471385A (en) * 1970-12-28 1984-09-11 Hyatt Gilbert P Electro-optical illumination control system
DE2304182A1 (de) * 1972-02-01 1973-08-09 Erik Gerhard Natana Westerberg Vorrichtung zum lichtelektrischen abtasten von datenaufzeichnungstraegern
NL161284C (nl) * 1972-09-02 1980-01-15 Philips Nv Weergavestelsel voor een optisch uitleesbare informatie- structuur, alsmede registratiedrager voor gebruik daarin.
US4225873A (en) * 1978-03-27 1980-09-30 Mca Disco-Vision, Inc. Recording and playback system
DE2462514C3 (de) 1973-02-20 1979-10-31 Mca Disco-Vision, Inc., Universal City, Calif. (V.St.A.) Vorrichtung zum Lesen von Information auf einer Videoplatte
US4611318A (en) * 1973-02-20 1986-09-09 Discovision Associates Method and apparatus for monitoring the storage of information on a storage medium
US4583210A (en) * 1973-02-20 1986-04-15 Discovision Associates Method and apparatus for storing and retrieving information
CA1013854A (en) * 1973-02-20 1977-07-12 John S. Winslow Videodisc mastering system
US4342906A (en) * 1973-06-04 1982-08-03 Hyatt Gilbert P Pulse width modulated feedback arrangement for illumination control
SE7405076L (sv) * 1974-04-16 1975-10-17 Erik Gerhard Natanel Westberg Optiskt massdataminne.
NL7506495A (nl) * 1975-06-02 1976-12-06 Philips Nv Inrichting voor het uitlezen van een registratie- drager.
US4125860A (en) * 1975-06-16 1978-11-14 Nippon Telegraph And Telephone Public Corporation Reproducer for an eraseable videodisc
US4410968A (en) * 1977-03-24 1983-10-18 Thomas Lee Siwecki Method and apparatus for recording on a disk supported deformable metallic film
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.
US4456914A (en) * 1978-03-27 1984-06-26 Discovision Associates Method and apparatus for storing information on a storage medium
GB2040539B (en) * 1978-12-27 1983-01-26 Hitachi Ltd Optical information recording apparatus
US4264986A (en) * 1979-03-12 1981-04-28 Willis Craig I Information-recording process & apparatus
US4496957A (en) * 1979-07-02 1985-01-29 Xerox Corporation Optical disk
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
JPS5819744A (ja) * 1981-07-24 1983-02-04 Sony Corp 光学式記録再生装置
US4545111A (en) * 1983-01-18 1985-10-08 Energy Conversion Devices, Inc. Method for making, parallel preprogramming or field programming of electronic matrix arrays
JPS6089840A (ja) * 1983-10-22 1985-05-20 Olympus Optical Co Ltd 自動焦点引込み装置
US4638335A (en) * 1983-12-29 1987-01-20 Xerox Corporation Optical recording member
FR2584223B1 (fr) * 1985-06-28 1994-06-17 Thomson Alcatel Gigadisc Memoire optique a suivi de piste echantillonne pour support d'information pregrave.
DE3524184A1 (de) * 1985-07-05 1987-01-15 Max Planck Gesellschaft Optisch lesbarer aufzeichnungstraeger
EP0460708B1 (en) * 1985-07-08 1997-10-15 Energy Conversion Devices, Inc. Data storage device and method of data processing
US4744055A (en) * 1985-07-08 1988-05-10 Energy Conversion Devices, Inc. Erasure means and data storage system incorporating improved erasure means
SU1602406A3 (ru) * 1985-08-06 1990-10-23 Плесси Оверсиз Лимитед (Фирма) Оптическое резонансное устройство
US4803660A (en) * 1986-02-28 1989-02-07 Kabushiki Kaisha Toshiba Optical recording medium
US4806952A (en) * 1986-07-04 1989-02-21 Hitachi, Ltd. Information recording apparatus for recording/reproducing information by irradiating an information recording medium with an energy beam
US4760567A (en) * 1986-08-11 1988-07-26 Electron Beam Memories Electron beam memory system with ultra-compact, high current density electron gun
US4754446A (en) * 1987-01-23 1988-06-28 General Electric Company Optical recording system using refracted write beam for erasing
US4908815A (en) * 1988-02-22 1990-03-13 Gregg David P Optical recording system utilizing proportional real-time feedback control of recording beam intensity
JPH0249225A (ja) * 1988-05-27 1990-02-19 Canon Inc 光学的情報記録再生装置
JP3076412B2 (ja) * 1991-07-24 2000-08-14 松下電器産業株式会社 光学的情報記録媒体および光学的情報記録再生方法
US5606541A (en) * 1992-11-13 1997-02-25 International Business Machines Corporation Switchable filter for modulating laser intensity and reducing laser feedback in an optical disk device
US6441940B1 (en) * 1998-10-09 2002-08-27 Agere Systems Guardian Corp. Wavelength stabilization of light emitting components

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174140A (en) * 1959-07-01 1965-03-16 Ibm Magneto-optical recording and readout device
US3185026A (en) * 1961-05-22 1965-05-25 Ncr Co Method and apparatus employing metachromatic material for forming a plurality of individual micro-images
US3253497A (en) * 1961-10-30 1966-05-31 Polacoat Inc Information storage device
US3365706A (en) * 1964-04-15 1968-01-23 Gilbert W. King Photo-optical data storage and retrieval system employing error detection and error location identification components
US3452332A (en) * 1965-01-05 1969-06-24 Ibm Memory device and method of information handling utilizing charge transfer between rare earth ions
US3466616A (en) * 1965-10-22 1969-09-09 Ibm Memory device and method using dichroic defects
US3475736A (en) * 1965-12-23 1969-10-28 Bell Telephone Labor Inc Lamellate optically responsive memory arrangement
US3440621A (en) * 1966-02-11 1969-04-22 Carson Lab Inc Color center information storage and retrieval system
US3506929A (en) * 1967-02-13 1970-04-14 Bell Telephone Labor Inc Litao3 electro-optic modulator
US3530441A (en) * 1969-01-15 1970-09-22 Energy Conversion Devices Inc Method and apparatus for storing and retrieving information

Also Published As

Publication number Publication date
JPS549008B1 (en, 2012) 1979-04-20
US3696344A (en) 1972-10-03
GB1342421A (en) 1974-01-03
FR2080607B1 (en, 2012) 1976-04-16
DE2102215A1 (de) 1971-08-26
FR2080607A1 (en, 2012) 1971-11-19
NL7101355A (en, 2012) 1971-08-23
DE2102215C2 (de) 1982-09-16

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