FR2126387A1 - - Google Patents

Info

Publication number
FR2126387A1
FR2126387A1 FR7206264A FR7206264A FR2126387A1 FR 2126387 A1 FR2126387 A1 FR 2126387A1 FR 7206264 A FR7206264 A FR 7206264A FR 7206264 A FR7206264 A FR 7206264A FR 2126387 A1 FR2126387 A1 FR 2126387A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7206264A
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.)
EMI Ltd
Original Assignee
EMI Ltd
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 EMI Ltd filed Critical EMI Ltd
Publication of FR2126387A1 publication Critical patent/FR2126387A1/fr
Withdrawn legal-status Critical Current

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
    • G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/03—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles
    • G11B11/06—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by deforming with non-mechanical means, e.g. laser, beam of particles with reproducing by mechanical sensing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/0057—Intermediate mediums, i.e. mediums provided with an information structure not specific to the method of reproducing or duplication such as matrixes for mechanical pressing of an information structure ; record carriers having a relief information structure provided with or included in layers not specific for a single reproducing method; apparatus or processes specially adapted for their manufacture
FR7206264A 1971-02-24 1972-02-24 Withdrawn FR2126387A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB529371A GB1389831A (en) 1971-02-24 1971-02-24 Production of records
GB3400071 1971-07-20
GB3674671 1971-08-05
GB5566271 1971-12-01
GB5989671 1971-12-23

Publications (1)

Publication Number Publication Date
FR2126387A1 true FR2126387A1 (fr) 1972-10-06

Family

ID=27515772

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7206264A Withdrawn FR2126387A1 (fr) 1971-02-24 1972-02-24

Country Status (5)

Country Link
DE (1) DE2209332A1 (fr)
FR (1) FR2126387A1 (fr)
GB (1) GB1389831A (fr)
IT (1) IT947823B (fr)
NL (1) NL7202468A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472243A1 (fr) * 1979-12-18 1981-06-26 Matsushita Electric Ind Co Ltd Dispositif d'enregistrement optique
FR2474222A1 (fr) * 1980-01-23 1981-07-24 Thomson Csf Procede d'inscription thermo-optique d'information et support d'information destine a la mise en oeuvre de ce procede
EP0033046B1 (fr) * 1980-01-23 1984-08-08 Thomson-Csf Procédé d'inscription thermo-optique d'information et support d'information destiné à la mise en oeuvre de ce procédé
EP0055439B1 (fr) * 1980-12-19 1986-11-12 Matsushita Electric Industrial Co., Ltd. Disques optiques et système d'enregistrement ou de reproduction les utilisant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021403B2 (ja) * 1979-10-18 1985-05-27 日本ビクター株式会社 光学的記録装置における集光状態の監視装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472243A1 (fr) * 1979-12-18 1981-06-26 Matsushita Electric Ind Co Ltd Dispositif d'enregistrement optique
FR2474222A1 (fr) * 1980-01-23 1981-07-24 Thomson Csf Procede d'inscription thermo-optique d'information et support d'information destine a la mise en oeuvre de ce procede
US4404656A (en) 1980-01-23 1983-09-13 Thomson-Csf Thermo-optical data writing process and data medium for performing this process
EP0033430B1 (fr) * 1980-01-23 1983-11-09 Thomson-Csf Procédé d'inscription thermo-optique d'information et support d'information destiné à la mise en oeuvre de ce procédé
EP0033046B1 (fr) * 1980-01-23 1984-08-08 Thomson-Csf Procédé d'inscription thermo-optique d'information et support d'information destiné à la mise en oeuvre de ce procédé
EP0055439B1 (fr) * 1980-12-19 1986-11-12 Matsushita Electric Industrial Co., Ltd. Disques optiques et système d'enregistrement ou de reproduction les utilisant

Also Published As

Publication number Publication date
DE2209332A1 (de) 1972-09-07
IT947823B (it) 1973-05-30
GB1389831A (en) 1975-04-09
NL7202468A (fr) 1972-08-28

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Legal Events

Date Code Title Description
ST Notification of lapse