SE451224B - Optisk lesbar skivformad uppteckningsberare, samt apparat for avlesning av nemnda uppteckningsberare - Google Patents

Optisk lesbar skivformad uppteckningsberare, samt apparat for avlesning av nemnda uppteckningsberare

Info

Publication number
SE451224B
SE451224B SE8100030A SE8100030A SE451224B SE 451224 B SE451224 B SE 451224B SE 8100030 A SE8100030 A SE 8100030A SE 8100030 A SE8100030 A SE 8100030A SE 451224 B SE451224 B SE 451224B
Authority
SE
Sweden
Prior art keywords
signal
modulation
frequency
record carrier
information
Prior art date
Application number
SE8100030A
Other languages
English (en)
Swedish (sv)
Other versions
SE8100030L (sv
Inventor
Haan M R De
K Compaan
L H Hissel
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 SE8100030L publication Critical patent/SE8100030L/xx
Publication of SE451224B publication Critical patent/SE451224B/sv

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
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
    • 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
    • G11B7/0904—Dithered tracking 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
    • G11B7/24—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Rotational Drive Of Disk (AREA)
  • Manufacturing Optical Record Carriers (AREA)
SE8100030A 1980-01-09 1981-01-07 Optisk lesbar skivformad uppteckningsberare, samt apparat for avlesning av nemnda uppteckningsberare SE451224B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8000122A NL8000122A (nl) 1980-01-09 1980-01-09 Schijfvormige, optisch uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen en/of weergeven van datainformatie in c.q. van zo'n registratiedrager.

Publications (2)

Publication Number Publication Date
SE8100030L SE8100030L (sv) 1981-07-10
SE451224B true SE451224B (sv) 1987-09-14

Family

ID=19834643

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8100030A SE451224B (sv) 1980-01-09 1981-01-07 Optisk lesbar skivformad uppteckningsberare, samt apparat for avlesning av nemnda uppteckningsberare

Country Status (19)

Country Link
US (1) US4375088A (nl)
JP (3) JPS56137531A (nl)
AT (1) AT369915B (nl)
AU (1) AU535687B2 (nl)
BE (1) BE886993A (nl)
BR (1) BR8100043A (nl)
CA (1) CA1157946A (nl)
DD (1) DD157230A5 (nl)
DE (1) DE3100278A1 (nl)
DK (1) DK151990C (nl)
ES (1) ES8201337A1 (nl)
FR (1) FR2473770B1 (nl)
GB (1) GB2067313B (nl)
IT (1) IT1169006B (nl)
MX (1) MX153478A (nl)
NL (1) NL8000122A (nl)
NZ (1) NZ195971A (nl)
SE (1) SE451224B (nl)
ZA (1) ZA807714B (nl)

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JPH063648B2 (ja) * 1986-01-16 1994-01-12 松下電器産業株式会社 光学的情報再生装置
JP2565196B2 (ja) * 1986-09-30 1996-12-18 ソニー株式会社 記録装置及び記録方法
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JP2581786B2 (ja) * 1988-12-05 1997-02-12 パイオニア株式会社 記録情報再生方式
JPH03219426A (ja) * 1988-12-26 1991-09-26 Canon Inc 光学的情報記録媒体及び光学的情報記録再生装置及び方法
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JP2698784B2 (ja) * 1989-07-21 1998-01-19 シャープ株式会社 情報記録再生装置
JP2785369B2 (ja) * 1989-08-25 1998-08-13 ソニー株式会社 ディスク状記録媒体
JP2953710B2 (ja) * 1989-08-25 1999-09-27 ソニー株式会社 記録装置及び記録方法
JP2785368B2 (ja) * 1989-08-25 1998-08-13 ソニー株式会社 ディスク状記録媒体、ディスク状記録体の再生方法及び記録方法
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EP0419239B1 (en) * 1989-09-22 1995-11-15 Sony Corporation Information-recording method and medium
JP2953711B2 (ja) * 1989-09-22 1999-09-27 ソニー株式会社 光ディスクの記録方法及びその再生方法
US5235587A (en) * 1989-09-29 1993-08-10 The Regents Of The University Of California Optical data storage apparatus and method
US5204852A (en) * 1990-02-17 1993-04-20 Victor Company Of Japan, Ltd. Optical disc-like recoding medium and manufacturing method thereof
US5825733A (en) * 1990-07-31 1998-10-20 Sony Corporation Optical disc recording apparatus for recording data at a disc rotational speed selected from a range of disc rotational speeds
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JP3092756B2 (ja) * 1992-07-24 2000-09-25 ソニー株式会社 光デイスク装置
JP2692545B2 (ja) * 1993-09-27 1997-12-17 株式会社日立製作所 情報記録媒体の再生方法
JPH08321045A (ja) * 1995-05-23 1996-12-03 Sharp Corp 光ディスク装置
JP2738355B2 (ja) * 1995-08-09 1998-04-08 株式会社日立製作所 光学的情報記録再生方法
JP2800728B2 (ja) * 1995-08-09 1998-09-21 株式会社日立製作所 情報記録装置及び光学的情報記録媒体製造装置
JP3652017B2 (ja) * 1995-08-23 2005-05-25 三井化学株式会社 光記録媒体
US5809006A (en) * 1996-05-31 1998-09-15 Cagent Technologies, Inc. Optical disk with copy protection, and apparatus and method for recording and reproducing same
AU3460497A (en) * 1996-09-26 1998-04-17 Sanyo Electric Co., Ltd. Recording medium and its reproducer
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US6046968A (en) * 1997-07-24 2000-04-04 Hewlett-Packard Company Re-writable optical disk having reference clock information permanently formed on the disk
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
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Also Published As

Publication number Publication date
CA1157946A (en) 1983-11-29
ZA807714B (en) 1982-07-28
NZ195971A (en) 1984-07-06
DK151990C (da) 1988-06-20
ES498338A0 (es) 1981-12-01
AU6599181A (en) 1981-07-16
IT8119019A0 (it) 1981-01-06
MX153478A (es) 1986-01-30
JPH01194137A (ja) 1989-08-04
JPH038020B2 (nl) 1991-02-05
GB2067313A (en) 1981-07-22
FR2473770A1 (fr) 1981-07-17
DE3100278A1 (de) 1982-04-08
ATA5681A (de) 1982-06-15
AT369915B (de) 1983-02-10
BE886993A (fr) 1981-07-07
US4375088A (en) 1983-02-22
JPS56137531A (en) 1981-10-27
SE8100030L (sv) 1981-07-10
DK3681A (da) 1981-07-10
DE3100278C2 (nl) 1990-05-03
AU535687B2 (en) 1984-03-29
GB2067313B (en) 1983-11-30
JPH0118504B2 (nl) 1989-04-06
FR2473770B1 (fr) 1985-07-05
DK151990B (da) 1988-01-18
JPH038019B2 (nl) 1991-02-05
DD157230A5 (de) 1982-10-20
ES8201337A1 (es) 1981-12-01
NL8000122A (nl) 1981-08-03
BR8100043A (pt) 1981-07-21
IT1169006B (it) 1987-05-20
JPH01194138A (ja) 1989-08-04

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