FR2336766A1 - RECORDING MEDIA, ITS MANUFACTURING AND APPLICATION - Google Patents

RECORDING MEDIA, ITS MANUFACTURING AND APPLICATION

Info

Publication number
FR2336766A1
FR2336766A1 FR7639100A FR7639100A FR2336766A1 FR 2336766 A1 FR2336766 A1 FR 2336766A1 FR 7639100 A FR7639100 A FR 7639100A FR 7639100 A FR7639100 A FR 7639100A FR 2336766 A1 FR2336766 A1 FR 2336766A1
Authority
FR
France
Prior art keywords
manufacturing
application
recording media
recording
media
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.)
Granted
Application number
FR7639100A
Other languages
French (fr)
Other versions
FR2336766B1 (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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of FR2336766A1 publication Critical patent/FR2336766A1/en
Application granted granted Critical
Publication of FR2336766B1 publication Critical patent/FR2336766B1/fr
Granted 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • 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
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • 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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0953—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for eccentricity of the disc or disc tracks
FR7639100A 1975-12-26 1976-12-24 RECORDING MEDIA, ITS MANUFACTURING AND APPLICATION Granted FR2336766A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50157200A JPS5280007A (en) 1975-12-26 1975-12-26 Video disc

Publications (2)

Publication Number Publication Date
FR2336766A1 true FR2336766A1 (en) 1977-07-22
FR2336766B1 FR2336766B1 (en) 1984-09-14

Family

ID=15644380

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639100A Granted FR2336766A1 (en) 1975-12-26 1976-12-24 RECORDING MEDIA, ITS MANUFACTURING AND APPLICATION

Country Status (6)

Country Link
JP (1) JPS5280007A (en)
CA (1) CA1085050A (en)
DE (1) DE2658677A1 (en)
FR (1) FR2336766A1 (en)
GB (1) GB1565829A (en)
NL (1) NL7614450A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414237A1 (en) * 1976-03-31 1979-08-03 Jacobs Eli S OPTICAL INFORMATION READING DEVICE
EP0023767A1 (en) * 1979-07-16 1981-02-11 Discovision Associates Video player/recorder for recording on a blank disk and method for home recording

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57130240A (en) * 1981-02-05 1982-08-12 Olympus Optical Co Ltd Optical information recording and reproducing device and information recording medium for it
US4424539A (en) * 1981-12-23 1984-01-03 International Business Machines Corporation Magnetic disk-control track read through envelope
GB2188474A (en) * 1986-03-27 1987-09-30 Philips Electronic Associated Electronic digital storage apparatus
GB8624444D0 (en) * 1986-10-11 1986-11-12 London Weekend Television Ltd Optical disc
JPH04305821A (en) * 1991-04-02 1992-10-28 Sony Corp Disk reproducing device
JP3063230B2 (en) * 1991-05-31 2000-07-12 ソニー株式会社 Rewritable disk and disk device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183948B (en) * 1961-01-12 1964-12-23 Telefunken Patent Memories, especially micro memories for information
DE1499773A1 (en) * 1962-05-07 1970-08-20 Minnesota Mining & Mfg Device for recording image and sound information on a disk-shaped storage medium
FR2217761A1 (en) * 1973-02-09 1974-09-06 Philips Nv
FR2251021A1 (en) * 1973-11-09 1975-06-06 Hitachi Ltd Automatic focussing system for laser beam on to moving object - has out of focus detector of beam of surface producing signal in feedback to correct
FR2315142A1 (en) * 1975-06-17 1977-01-14 Pyral Soc Transducer head guide system - using additional guide track associated with magnetic recording track

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3479664A (en) * 1965-12-28 1969-11-18 Data Products Corp Servo positioning system
US3881184A (en) * 1974-05-28 1975-04-29 Ibm Adaptive digital servo system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183948B (en) * 1961-01-12 1964-12-23 Telefunken Patent Memories, especially micro memories for information
DE1499773A1 (en) * 1962-05-07 1970-08-20 Minnesota Mining & Mfg Device for recording image and sound information on a disk-shaped storage medium
FR2217761A1 (en) * 1973-02-09 1974-09-06 Philips Nv
FR2251021A1 (en) * 1973-11-09 1975-06-06 Hitachi Ltd Automatic focussing system for laser beam on to moving object - has out of focus detector of beam of surface producing signal in feedback to correct
FR2315142A1 (en) * 1975-06-17 1977-01-14 Pyral Soc Transducer head guide system - using additional guide track associated with magnetic recording track

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414237A1 (en) * 1976-03-31 1979-08-03 Jacobs Eli S OPTICAL INFORMATION READING DEVICE
EP0023767A1 (en) * 1979-07-16 1981-02-11 Discovision Associates Video player/recorder for recording on a blank disk and method for home recording

Also Published As

Publication number Publication date
GB1565829A (en) 1980-04-23
DE2658677A1 (en) 1977-07-14
CA1085050A (en) 1980-09-02
JPS5280007A (en) 1977-07-05
NL7614450A (en) 1977-06-28
FR2336766B1 (en) 1984-09-14

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Legal Events

Date Code Title Description
ST Notification of lapse