WO1988004824A3 - Distribution of clock indicia for a quasi-constant linear-velocity disk - Google Patents

Distribution of clock indicia for a quasi-constant linear-velocity disk Download PDF

Info

Publication number
WO1988004824A3
WO1988004824A3 PCT/US1987/003217 US8703217W WO8804824A3 WO 1988004824 A3 WO1988004824 A3 WO 1988004824A3 US 8703217 W US8703217 W US 8703217W WO 8804824 A3 WO8804824 A3 WO 8804824A3
Authority
WO
WIPO (PCT)
Prior art keywords
zone
disk
quasi
distribution
track
Prior art date
Application number
PCT/US1987/003217
Other languages
French (fr)
Other versions
WO1988004824A2 (en
Inventor
James Arthur Barnard
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of WO1988004824A2 publication Critical patent/WO1988004824A2/en
Publication of WO1988004824A3 publication Critical patent/WO1988004824A3/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
    • G11B7/24085—Pits
    • 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
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1258—Formatting, e.g. arrangement of data block or words on the record carriers on discs where blocks are arranged within multiple radial zones, e.g. Zone Bit Recording or Constant Density Recording discs, MCAV discs, MCLV discs

Abstract

A disk (10) (magnetic, magneto-optical or optical) includes information-bearing tracks (12) having prerecorded indicia, preferably tracking pads (30), distributed uniformly along each track for phase locking a write clock (55) so as to write user data subsequently between the tracking pads, in the presence of random fluctuations in disk speed. The tracks are grouped into a plurality of annular zones (16) encircling the center of the disk, wherein the ratio of the inner radius (or outer radius) of a given zone to the corresponding radius of the adjacent inner zone is a rational number, n/d, which is the same for each adjacent pair of zones. Each track within a given zone, i, has a fixed number of radially aligned tracking pads, Pi, calculated from: Pi = (n/d)i-1 x (d)N-1 where i is 1 for the innermost zone and is N for the outermost zone.
PCT/US1987/003217 1986-12-19 1987-12-07 Distribution of clock indicia for a quasi-constant linear-velocity disk WO1988004824A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/943,396 US4819218A (en) 1986-12-19 1986-12-19 Quasi-constant linear-velocity disk having corresponding radii of adjacent annular zones related by a rational number for distributing prerecorded indicia to form a coherent write clock signal
US943,396 1986-12-19

Publications (2)

Publication Number Publication Date
WO1988004824A2 WO1988004824A2 (en) 1988-06-30
WO1988004824A3 true WO1988004824A3 (en) 1988-07-14

Family

ID=25479573

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/003217 WO1988004824A2 (en) 1986-12-19 1987-12-07 Distribution of clock indicia for a quasi-constant linear-velocity disk

Country Status (4)

Country Link
US (1) US4819218A (en)
EP (1) EP0293468A1 (en)
JP (1) JPH01501662A (en)
WO (1) WO1988004824A2 (en)

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JP2655682B2 (en) * 1988-06-08 1997-09-24 株式会社日立製作所 Magneto-optical information recording / reproducing device
FR2635401B1 (en) * 1988-08-12 1991-10-31 Atg Sa METHOD OF RECORDING INFORMATION ON A DISC TYPE MEDIUM, RECORDING MEDIUM OF RECORDED INFORMATION AND RECORDING-READING DEVICE FOR IMPLEMENTING THE METHOD
JPH0646487B2 (en) * 1989-03-31 1994-06-15 キヤノン株式会社 Information recording / reproducing method, information recording / reproducing apparatus, and information recording carrier
CA2022192C (en) * 1989-08-04 1995-03-21 Shigemi Maeda Optical disk recording/reproducing device
US5182741A (en) * 1989-08-25 1993-01-26 Sharp Kabushiki Kaisha Optical disk recording/reproducing device utilizing a constant angular velocity method with a constant linear velocity formatted optical disk
JP3034268B2 (en) * 1990-02-19 2000-04-17 株式会社日立製作所 Disk-shaped recording medium and recording / reproducing device
DE69127951T2 (en) * 1990-05-25 1998-04-09 Hitachi Ltd OPTICAL INFORMATION RECORDING / PLAYBACK DEVICE WITH PITS TRANSITION RECORDING SYSTEM
JPH0434764A (en) * 1990-05-28 1992-02-05 Internatl Business Mach Corp <Ibm> Magnetic disc
JP2583645B2 (en) * 1990-06-13 1997-02-19 シャープ株式会社 Information recording / reproducing device
CA2054880C (en) † 1990-11-09 1997-07-08 Shigemi Maeda Information recording and reproducing device
US5258695A (en) * 1990-12-19 1993-11-02 Integral Peripherals, Inc. Spin motor control system for a hard disk assembly
EP0563230B1 (en) * 1990-12-19 2000-02-16 Mobile Storage Technology Inc. Miniature hard disk drive for portable computer
EP0544017B1 (en) * 1991-06-17 2001-03-14 Sony Corporation Method for recording on disc
JP3277517B2 (en) * 1991-06-17 2002-04-22 ソニー株式会社 Method of reproducing disc-shaped recording medium
JPH0541046A (en) * 1991-08-02 1993-02-19 Canon Inc Information recording and reproducing device
US5345435A (en) * 1991-08-30 1994-09-06 Sony Corporation Optical disc and method for recording on optical disc
JP3078686B2 (en) * 1992-10-05 2000-08-21 三菱電機株式会社 Optical disk, optical disk drive, and optical disk write / read method
US6529451B2 (en) 1992-10-05 2003-03-04 Mitsubishi Denki Kabushiki Kaisha Optical disk and optical disk drive device
US7548497B2 (en) * 1992-10-05 2009-06-16 Mitsubishi Denki Kabushiki Kaisha Optical disk and optical disk drive device
JPH06309801A (en) * 1993-04-28 1994-11-04 Toshiba Corp Disk recording and reproducing system
JP3240762B2 (en) * 1993-07-26 2001-12-25 ソニー株式会社 Optical recording medium reproducing method and reproducing apparatus
US5654948A (en) * 1993-09-07 1997-08-05 Sony Corporation Disc apparatus for recording/reproducing with zone constant angular velocity
JPH07130092A (en) * 1993-11-05 1995-05-19 Sony Corp Disk recording device, disk reproducing device and disk type recording medium
CA2138301C (en) * 1994-01-21 1998-12-15 Hal Hjalmar Ottesen Apparatus and method for providing multimedia data
EP1008985A2 (en) 1994-08-25 2000-06-14 Sony Corporation Optical disk
SG103868A1 (en) 1998-04-20 2004-05-26 Samsung Electronics Co Ltd Defect management method and method of recording data
US7514037B2 (en) * 2002-08-08 2009-04-07 Kobe Steel, Ltd. AG base alloy thin film and sputtering target for forming AG base alloy thin film

Citations (9)

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FR2397037A1 (en) * 1977-07-08 1979-02-02 Ibm VIDEO RECORDING ON DISC AND PLAYBACK DEVICE WITH APPLICATION
US4357635A (en) * 1979-03-20 1982-11-02 Ricoh Company, Ltd. Disc memory apparatus
FR2508218A1 (en) * 1981-06-18 1982-12-24 Tokyo Shibaura Electric Co OPTICAL DISK AND OPTICAL DISC APPARATUS FOR USE THEREOF
EP0080256A2 (en) * 1981-11-20 1983-06-01 Kabushiki Kaisha Toshiba Information recording/reproducing apparatus
GB2113891A (en) * 1981-12-07 1983-08-10 Pioneer Video Corp Method for recording information on a recording disc
EP0089263A1 (en) * 1982-03-12 1983-09-21 Thomson-Csf Pre-engraved movable record carrier and tracking device therefor
DE3604916A1 (en) * 1985-02-18 1986-08-21 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa Recording carrier
FR2578346A1 (en) * 1985-01-23 1986-09-05 Canon Kk Apparatus for recording/reproducing information
WO1988001786A1 (en) * 1986-08-25 1988-03-10 Eastman Kodak Company Data recording format for an information-bearing disk

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US3185972A (en) * 1961-10-10 1965-05-25 Ibm Transducer positioning system utilizing record with interspersed data and positioning information
US3351920A (en) * 1964-01-02 1967-11-07 Xerox Corp Thermoplastic computer memory storage system
FR2452838A1 (en) * 1979-03-30 1980-10-24 Thomson Csf Video disc sound recording - uses TDM to separate sounds recorded on different channels and subcarrier reference signals to discriminate between sounds
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DE3172850D1 (en) * 1980-12-17 1985-12-12 Matsushita Electric Ind Co Ltd Optical disk having an index mark
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US4519054A (en) * 1982-06-03 1985-05-21 News Log International, Inc. Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby
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CA1219367A (en) * 1983-05-25 1987-03-17 Tadashi Motoyama Video signal recording and reproducing apparatus

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2397037A1 (en) * 1977-07-08 1979-02-02 Ibm VIDEO RECORDING ON DISC AND PLAYBACK DEVICE WITH APPLICATION
US4357635A (en) * 1979-03-20 1982-11-02 Ricoh Company, Ltd. Disc memory apparatus
FR2508218A1 (en) * 1981-06-18 1982-12-24 Tokyo Shibaura Electric Co OPTICAL DISK AND OPTICAL DISC APPARATUS FOR USE THEREOF
EP0080256A2 (en) * 1981-11-20 1983-06-01 Kabushiki Kaisha Toshiba Information recording/reproducing apparatus
GB2113891A (en) * 1981-12-07 1983-08-10 Pioneer Video Corp Method for recording information on a recording disc
EP0089263A1 (en) * 1982-03-12 1983-09-21 Thomson-Csf Pre-engraved movable record carrier and tracking device therefor
FR2578346A1 (en) * 1985-01-23 1986-09-05 Canon Kk Apparatus for recording/reproducing information
DE3604916A1 (en) * 1985-02-18 1986-08-21 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa Recording carrier
WO1988001786A1 (en) * 1986-08-25 1988-03-10 Eastman Kodak Company Data recording format for an information-bearing disk

Also Published As

Publication number Publication date
EP0293468A1 (en) 1988-12-07
WO1988004824A2 (en) 1988-06-30
JPH01501662A (en) 1989-06-08
US4819218A (en) 1989-04-04

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