IT1194113B - DATA RECORDING APPARATUS IN A DISK RECORDING MEDIA, OPTICALLY READABLE - Google Patents

DATA RECORDING APPARATUS IN A DISK RECORDING MEDIA, OPTICALLY READABLE

Info

Publication number
IT1194113B
IT1194113B IT25119/81A IT2511981A IT1194113B IT 1194113 B IT1194113 B IT 1194113B IT 25119/81 A IT25119/81 A IT 25119/81A IT 2511981 A IT2511981 A IT 2511981A IT 1194113 B IT1194113 B IT 1194113B
Authority
IT
Italy
Prior art keywords
optically readable
recording apparatus
data recording
recording media
disk
Prior art date
Application number
IT25119/81A
Other languages
Italian (it)
Other versions
IT8125119A0 (en
Inventor
Marino Giuseppe Carasso
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IT8125119A0 publication Critical patent/IT8125119A0/en
Application granted granted Critical
Publication of IT1194113B publication Critical patent/IT1194113B/en

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
    • G11B7/24073—Tracks
    • G11B7/24082—Meandering
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36—Monitoring, i.e. supervising the progress of recording or reproducing
    • 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
    • G11B7/0948—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 detection and avoidance or compensation of imperfections on the carrier, e.g. dust, scratches, dropouts
    • 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
IT25119/81A 1980-11-19 1981-11-16 DATA RECORDING APPARATUS IN A DISK RECORDING MEDIA, OPTICALLY READABLE IT1194113B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8006306A NL8006306A (en) 1980-11-19 1980-11-19 DISC-SHAPED, OPTICALLY READABLE RECORD CARRIER AS A STORAGE MEDIA FOR DATA INFORMATION, DEVICE FOR MANUFACTURING SUCH RECORD CARRIER AND DEVICE FOR RECORDING DATA INFORMATION IN SUCH RECORD CARRIAGE.

Publications (2)

Publication Number Publication Date
IT8125119A0 IT8125119A0 (en) 1981-11-16
IT1194113B true IT1194113B (en) 1988-09-14

Family

ID=19836204

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25119/81A IT1194113B (en) 1980-11-19 1981-11-16 DATA RECORDING APPARATUS IN A DISK RECORDING MEDIA, OPTICALLY READABLE

Country Status (7)

Country Link
JP (1) JPS57113426A (en)
DE (1) DE3145128A1 (en)
ES (1) ES8301044A1 (en)
FR (1) FR2494476A1 (en)
GB (1) GB2087628B (en)
IT (1) IT1194113B (en)
NL (1) NL8006306A (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8103117A (en) * 1981-06-29 1983-01-17 Philips Nv DEVICE FOR DESCRIBING AND / OR READING A RECORD CARRIER.
US4443870A (en) * 1981-10-15 1984-04-17 Burroughs Corporation Optical memory system providing track following
JPS58158038A (en) * 1982-03-15 1983-09-20 Toshiba Corp Optical disc device
JPS59227039A (en) * 1983-06-07 1984-12-20 Matsushita Electric Ind Co Ltd Recording and reproducing master disk preparing device
JPS6185653A (en) * 1984-10-02 1986-05-01 Sharp Corp Optical memory element
JPS63144454A (en) * 1986-12-08 1988-06-16 Alps Electric Co Ltd Information recording disk
JP3264385B2 (en) 1992-09-09 2002-03-11 ソニー株式会社 Optical disk recording / reproducing device
US7701836B2 (en) 2001-11-27 2010-04-20 Hewlett-Packard Development Company, L.P. Re-writable optical disk having reference clock information permanently formed on the disk
US6046968A (en) * 1997-07-24 2000-04-04 Hewlett-Packard Company Re-writable optical disk having reference clock information permanently formed on the disk
KR100416588B1 (en) * 2001-01-04 2004-02-05 삼성전자주식회사 Apparatus for detecting wobble defect and method thereof
JP2006527895A (en) * 2003-06-19 2006-12-07 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Apparatus and method for reducing crosstalk between data and push-pull

Also Published As

Publication number Publication date
JPS57113426A (en) 1982-07-14
IT8125119A0 (en) 1981-11-16
ES507205A0 (en) 1982-11-01
FR2494476A1 (en) 1982-05-21
ES8301044A1 (en) 1982-11-01
GB2087628A (en) 1982-05-26
GB2087628B (en) 1984-10-10
NL8006306A (en) 1982-06-16
DE3145128A1 (en) 1982-06-24

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