IT8221490A0 - Apparecchiature per incidere e/oppure leggere una portante di registrazione. - Google Patents

Apparecchiature per incidere e/oppure leggere una portante di registrazione.

Info

Publication number
IT8221490A0
IT8221490A0 IT8221490A IT2149082A IT8221490A0 IT 8221490 A0 IT8221490 A0 IT 8221490A0 IT 8221490 A IT8221490 A IT 8221490A IT 2149082 A IT2149082 A IT 2149082A IT 8221490 A0 IT8221490 A0 IT 8221490A0
Authority
IT
Italy
Prior art keywords
engraving
reading
equipment
recording carrier
recording
Prior art date
Application number
IT8221490A
Other languages
English (en)
Other versions
IT1151247B (it
Inventor
Kurt Walter Getreuer
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 IT8221490A0 publication Critical patent/IT8221490A0/it
Application granted granted Critical
Publication of IT1151247B publication Critical patent/IT1151247B/it

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
    • G11B7/08—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
    • G11B7/0938—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 servo format, e.g. guide tracks, pilot signals
    • 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
IT21490/82A 1981-05-29 1982-05-26 Apparecchiature per incidere e/oppure leggere una portante di registrazione IT1151247B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8102621A NL8102621A (nl) 1981-05-29 1981-05-29 Inrichting voor het beschrijven en/of uitlezen van een registratiedrager.

Publications (2)

Publication Number Publication Date
IT8221490A0 true IT8221490A0 (it) 1982-05-26
IT1151247B IT1151247B (it) 1986-12-17

Family

ID=19837585

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21490/82A IT1151247B (it) 1981-05-29 1982-05-26 Apparecchiature per incidere e/oppure leggere una portante di registrazione

Country Status (10)

Country Link
US (1) US4807211A (it)
JP (1) JPS57200952A (it)
AT (1) AT373423B (it)
AU (1) AU8422982A (it)
CA (1) CA1194228A (it)
DE (1) DE3218917A1 (it)
FR (1) FR2506982B1 (it)
GB (1) GB2099614B (it)
IT (1) IT1151247B (it)
NL (1) NL8102621A (it)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8103117A (nl) * 1981-06-29 1983-01-17 Philips Nv Inrichting voor het beschrijven en/of uitlezen van een registratiedrager.
JPS59191144A (ja) * 1983-04-14 1984-10-30 Sony Corp 光ピツクアツプのトラツキングサ−ボ回路
US4703408A (en) * 1983-11-28 1987-10-27 Hitachi, Ltd. Apparatus and record carrier for optically writing information
JPS63239621A (ja) * 1987-03-27 1988-10-05 Sony Corp 診断機能付光デイスク記録・再生装置
GB8719412D0 (en) * 1987-08-17 1987-09-23 Zed Instr Ltd Preparing screen
NL8702261A (nl) * 1987-09-23 1989-04-17 Philips Nv Informatie opteken en/of uitlees systeem, alsmede een registratiedrager en opteken en/of uitleesinrichting voor toepassing in een dergelijk systeem.
US5187699A (en) * 1988-01-22 1993-02-16 U.S. Philips Corporation Method and apparatus for successively recording two EFM-modulated signals enabling detection of boundary condition for transitioning between signals
US5148422A (en) * 1989-08-25 1992-09-15 Sony Corporation Optical recording medium having a data recording track with offset data storing regions
CA2054880C (en) † 1990-11-09 1997-07-08 Shigemi Maeda Information recording and reproducing device
JP3273444B2 (ja) * 1992-09-21 2002-04-08 株式会社ニコン 書込み可能な光ディスク
EP0767959B1 (en) * 1995-04-28 2002-09-11 Koninklijke Philips Electronics N.V. System for storing and reproducing information
US5835478A (en) * 1995-06-15 1998-11-10 Sony Corporation Optical disc having address information for recording and reproducing data at correct positions
JP3529937B2 (ja) * 1996-04-08 2004-05-24 ローム株式会社 光ピックアップ装置
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
US6052358A (en) * 1996-10-04 2000-04-18 Sony Corporation Head feeding mechanism and optical pick-up feeding mechanism
DE19723542A1 (de) * 1997-06-05 1998-12-10 Thomson Brandt Gmbh Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger
DE19937023A1 (de) 1999-08-05 2001-02-08 Heidenhain Gmbh Dr Johannes Reflexions-Maßverkörperung und Verfahren zur Herstellung einer Reflexions-Maßverkörperung
US8077417B2 (en) * 2008-12-11 2011-12-13 Seagate Technology Llc Skip block writing for bit patterned media write synchronization

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5415727B2 (it) * 1973-02-02 1979-06-16
US3931460A (en) * 1974-02-04 1976-01-06 Zenith Radio Corporation Video disc with multiturn undulating storage track
US4074085A (en) * 1976-03-31 1978-02-14 Eli S. Jacobs Multiple beam optical record playback apparatus for simultaneous scan of plural data tracks
JPS583297B2 (ja) * 1978-06-09 1983-01-20 株式会社日立製作所 情報記録再生方法，その装置およびその記録媒体
NL8000121A (nl) * 1980-01-09 1981-08-03 Philips Nv Schijfvormige, optische uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen van datainformatie in zo'n registratiedrager en inrichting voor het uitlezen van zo'n registratiedrager.
NL8000122A (nl) * 1980-01-09 1981-08-03 Philips Nv 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.
NL8000123A (nl) * 1980-01-09 1981-08-03 Philips Nv Inrichting voor het schrijven van digitale informatie in een schijfvormige optisch uitleesbare registratiedrager.
JPS5720928A (en) * 1980-07-09 1982-02-03 Toshiba Corp Optical disk reproduction system
NL8006165A (nl) * 1980-11-12 1982-06-01 Philips Nv Systeem voor het overdragen van digitale informatie, codeerinrichting voor toepassing in dat systeem, decodeerinrichting voor toepassing in dat systeem en registratiedrager voor toepassing in dat systeem.

Also Published As

Publication number Publication date
JPH0221057B2 (it) 1990-05-11
GB2099614B (en) 1984-09-12
AU8422982A (en) 1982-12-02
US4807211A (en) 1989-02-21
AT373423B (de) 1984-01-25
IT1151247B (it) 1986-12-17
NL8102621A (nl) 1982-12-16
DE3218917C2 (it) 1990-11-15
FR2506982B1 (fr) 1985-10-31
FR2506982A1 (fr) 1982-12-03
CA1194228A (en) 1985-09-24
ATA207782A (de) 1983-05-15
GB2099614A (en) 1982-12-08
DE3218917A1 (de) 1983-03-10
JPS57200952A (en) 1982-12-09

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