GB2079031B - Optical information record and a method of reversibly recording and erasing information thereon - Google Patents

Optical information record and a method of reversibly recording and erasing information thereon

Info

Publication number
GB2079031B
GB2079031B GB8114615A GB8114615A GB2079031B GB 2079031 B GB2079031 B GB 2079031B GB 8114615 A GB8114615 A GB 8114615A GB 8114615 A GB8114615 A GB 8114615A GB 2079031 B GB2079031 B GB 2079031B
Authority
GB
United Kingdom
Prior art keywords
erasing
information
optical information
reversibly recording
record
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
GB8114615A
Other versions
GB2079031A (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.)
RCA Corp
Original Assignee
RCA 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 filed by RCA Corp filed Critical RCA Corp
Publication of GB2079031A publication Critical patent/GB2079031A/en
Application granted granted Critical
Publication of GB2079031B publication Critical patent/GB2079031B/en
Priority to MY8700131A priority Critical patent/MY8700131A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/705—Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances, e.g. photodope systems
    • 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
    • G11B7/0055—Erasing
    • 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
    • G11B7/252—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of layers other than recording layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
GB8114615A 1980-05-14 1981-05-13 Optical information record and a method of reversibly recording and erasing information thereon Expired GB2079031B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MY8700131A MY8700131A (en) 1980-05-14 1987-12-30 Information record and a method of reversibly recording and erasing information thereon

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB8015932 1980-05-14
US17484480A 1980-08-04 1980-08-04
US25464981A 1981-04-16 1981-04-16

Publications (2)

Publication Number Publication Date
GB2079031A GB2079031A (en) 1982-01-13
GB2079031B true GB2079031B (en) 1984-08-08

Family

ID=27260916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8114615A Expired GB2079031B (en) 1980-05-14 1981-05-13 Optical information record and a method of reversibly recording and erasing information thereon

Country Status (4)

Country Link
DE (1) DE3118058A1 (en)
FR (1) FR2482756B1 (en)
GB (1) GB2079031B (en)
HK (1) HK78586A (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1983001701A1 (en) * 1981-11-09 1983-05-11 Burroughs Corp Archival recording media for digital data storage using low power radiation
JPS58501882A (en) * 1981-11-09 1983-11-04 バロ−ス・コ−ポレ−ション Archival data recording methods and related media
WO1983001704A1 (en) * 1981-11-09 1983-05-11 Burroughs Corp Archival recording media with improved information layer and associated substrate
JPS58501887A (en) * 1981-11-09 1983-11-04 バロ−ス・コ−ポレ−ション digital data record material
WO1983001699A1 (en) * 1981-11-09 1983-05-11 Burroughs Corp Archival data recording system using low power radiation and related media
WO1983001700A1 (en) * 1981-11-09 1983-05-11 Burroughs Corp Deposition techniques for archival recording media for digital data storage
DE3242315A1 (en) * 1981-11-23 1983-06-01 RCA Corp., 10020 New York, N.Y. OPTICAL STORAGE MEDIUM
GB2121227A (en) * 1982-05-11 1983-12-14 Nigel Geoffrey Ley Optical memory recording disc
JPS5936338A (en) * 1982-08-24 1984-02-28 Matsushita Electric Ind Co Ltd Optical disk recording and reproducing method
JPS5968844A (en) * 1982-10-14 1984-04-18 Matsushita Electric Ind Co Ltd Optical reversible recording and reproducing device
NL8204291A (en) * 1982-11-05 1984-06-01 Philips Nv OPTICAL REGISTRATION ELEMENT.
JPS60500329A (en) * 1982-12-31 1985-03-14 ミネソタ　マイニング　アンド　マニユフアクチユアリング　コンパニ− Recording medium for optical data storage
US4583102A (en) * 1983-05-04 1986-04-15 Matsushita Electric Industrial Co., Ltd. Optical disc and method of manufacturing
US4547444A (en) * 1983-12-23 1985-10-15 Minnesota Mining And Manufacturing Company Recording element for optical data storage
US4777068A (en) * 1984-08-10 1988-10-11 Canon Kabushiki Kaisha Optical recording medium
JPS6180640A (en) * 1984-09-28 1986-04-24 Canon Inc Optical recording medium
JPH0619856B2 (en) * 1984-11-09 1994-03-16 株式会社日立製作所 Information recording medium
DE3601265A1 (en) * 1985-01-18 1986-07-24 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa OPTICAL INFORMATION RECORDING SYSTEM
EP1047054A1 (en) * 1985-07-08 2000-10-25 Energy Conversion Devices, Inc. Data storage device
WO1987004843A1 (en) * 1986-02-07 1987-08-13 Institut Problem Modelirovania V Energetike Akadem Optical information carrier, method and optical memorization device for erasing the information therein
SU1628081A1 (en) * 1986-02-07 1991-02-15 Институт Проблем Моделирования В Энергетике Ан Усср Data medium for optical memories
US4839883A (en) * 1986-06-30 1989-06-13 Matsushita Electric Ind. Co., Ltd. Optical information recording medium
JP2512087B2 (en) * 1988-06-24 1996-07-03 株式会社日立製作所 Optical recording medium and optical recording method
JP2538647B2 (en) * 1988-07-22 1996-09-25 富士通株式会社 Optical disc media
US5090009A (en) * 1988-07-30 1992-02-18 Taiyo Yuden Co., Ltd. Optical information recording medium
US5155723A (en) * 1988-07-30 1992-10-13 Yuden Co., Ltd. Taiyo Optical information recording method and medium
US4940618A (en) * 1988-07-30 1990-07-10 Taiyo Yuden Company, Ltd. Optical information recording medium
US5191565A (en) * 1989-06-19 1993-03-02 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
DE3929699A1 (en) * 1989-09-07 1991-03-14 Basf Ag RECORDING MEDIA AND REVERSIBLE OPTICAL RECORDING METHOD
US5364829A (en) * 1991-08-30 1994-11-15 Matsushita Electric Industrial Co., Ltd. Rewritable recording medium and a method of recording in the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651281A (en) * 1969-06-06 1972-03-21 Carl H Becker Laser recording system using photomagnetically magnetizable storage medium
US3696344A (en) * 1970-02-19 1972-10-03 Energy Conversion Devices Inc Optical mass memory employing amorphous thin films
US3626386A (en) * 1970-03-05 1971-12-07 Energy Conversion Devices Inc Information storage systems
CH554582A (en) * 1973-03-30 1974-09-30 Ibm PROCESS AND DEVICE FOR OPTICAL STORAGE AND READOUT OF BINARY INFORMATION.
FR2271617B1 (en) * 1974-05-15 1976-10-15 Thomson Brandt
US4125860A (en) * 1975-06-16 1978-11-14 Nippon Telegraph And Telephone Public Corporation Reproducer for an eraseable videodisc
US4101907A (en) * 1977-08-29 1978-07-18 Rca Corporation Overcoat structure for optical video disc
US4189735A (en) * 1978-02-24 1980-02-19 Rca Corporation Record playback apparatus and information record therefor
JPS5528530A (en) * 1978-08-17 1980-02-29 Matsushita Electric Ind Co Ltd Optical information recording method
US4264986A (en) * 1979-03-12 1981-04-28 Willis Craig I Information-recording process & apparatus

Also Published As

Publication number Publication date
HK78586A (en) 1986-10-24
FR2482756A1 (en) 1981-11-20
FR2482756B1 (en) 1989-03-31
GB2079031A (en) 1982-01-13
DE3118058A1 (en) 1982-03-11
DE3118058C2 (en) 1989-05-18

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20010512