JPS5637A - Tracking system of optical disc memory - Google Patents

Tracking system of optical disc memory

Info

Publication number
JPS5637A
JPS5637A JP7230079A JP7230079A JPS5637A JP S5637 A JPS5637 A JP S5637A JP 7230079 A JP7230079 A JP 7230079A JP 7230079 A JP7230079 A JP 7230079A JP S5637 A JPS5637 A JP S5637A
Authority
JP
Japan
Prior art keywords
tracking
recording
information
signal
track
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.)
Pending
Application number
JP7230079A
Other languages
Japanese (ja)
Inventor
Yoji Shibata
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7230079A priority Critical patent/JPS5637A/en
Publication of JPS5637A publication Critical patent/JPS5637A/en
Pending 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
    • G11B7/007—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
    • G11B7/00745—Sectoring or header formats within a track

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To enable to write in data additionaly on an arbitrary sector on an arbitrary track freely, by sectioning one recording track into plurality, recording the tracking information on each sector and tracking the information after extracting. CONSTITUTION:The recording track on the recording medium is divided into N, and the tracking information 210 for the recording tracking is recorded in advance to the N sets of sectors as the pre-wobbling signal. Further, this tracking signal 210 is extracted and recorded as major tracking signal. At the recording of the signal information, while tracking the tracking signal 210, the address information 211 is read in, the objective address is freely retrieved, and the signal information is recorded on the recording information area 213 of this track as required. Thus, the additional write-in can be made to an arbitrary sector of an arbotrary track, the reference light of the signal information recording is made unnecessary, and the optical system unit can be simplified.
JP7230079A 1979-06-11 1979-06-11 Tracking system of optical disc memory Pending JPS5637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7230079A JPS5637A (en) 1979-06-11 1979-06-11 Tracking system of optical disc memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7230079A JPS5637A (en) 1979-06-11 1979-06-11 Tracking system of optical disc memory

Publications (1)

Publication Number Publication Date
JPS5637A true JPS5637A (en) 1981-01-06

Family

ID=13485271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7230079A Pending JPS5637A (en) 1979-06-11 1979-06-11 Tracking system of optical disc memory

Country Status (1)

Country Link
JP (1) JPS5637A (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837850A (en) * 1981-08-14 1983-03-05 トムソン−セエスエフ Optical tracking apparatus accompanying sampling
JPS5891537A (en) * 1981-11-25 1983-05-31 Hitachi Ltd Information recording and playback method
JPS58501744A (en) * 1981-10-15 1983-10-13 バロ−ス・コ−ポレ−ション Preformatted optical media for use in optical memory systems
JPS58501745A (en) * 1981-10-15 1983-10-13 バロ−ス・コ−ポレ−ション 3-beam optical memory system
JPS58185051A (en) * 1982-03-12 1983-10-28 トムソン−セエスエフ Mobile preetched data medium and optical tracking device using same
JPS58185046A (en) * 1982-03-12 1983-10-28 トムソン−セエスエフ Method and device for generating control signal of track scanning spot position of data medium
JPS593728A (en) * 1982-06-15 1984-01-10 トムソン−セエスエフ Optical method and device for focusing light energy on reference surface of data medium and the medium
JPS59500392A (en) * 1981-10-15 1984-03-08 バロ−ス・コ−ポレ−ション Optical memory system provides improved track following
JPS59110044A (en) * 1982-12-13 1984-06-25 Akai Electric Co Ltd Detecting method of tracking servo signal of optical pickup
JPS60151845A (en) * 1984-01-20 1985-08-09 Hitachi Ltd Optical information recording and reproducing device
JPS60217538A (en) * 1985-03-15 1985-10-31 Hitachi Ltd Optical recording and reproducing device
JPS6318529A (en) * 1986-07-11 1988-01-26 Hitachi Ltd Optical disk tracking method
JPS6320726A (en) * 1986-07-15 1988-01-28 Hitachi Ltd Optical disk device
JPH01155525A (en) * 1987-12-11 1989-06-19 Hitachi Ltd optical disc device
US4923168A (en) * 1987-06-15 1990-05-08 501 Yamada Yuki Seizo Co., Ltd. Spool type switching valve device
US5002468A (en) * 1987-05-28 1991-03-26 Yamada Yuki Seizo Co., Ltd. Switching device for reciprocating pumps
JPH08227531A (en) * 1985-05-10 1996-09-03 Alcatel Thomson Gigadisc Device for reading information medium with pre-record pattern
WO2008120354A1 (en) * 2007-03-29 2008-10-09 Pioneer Corporation Multi-layer optical recording medium manufacturing method and multi-layer optical recording device

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837850A (en) * 1981-08-14 1983-03-05 トムソン−セエスエフ Optical tracking apparatus accompanying sampling
JPS58501744A (en) * 1981-10-15 1983-10-13 バロ−ス・コ−ポレ−ション Preformatted optical media for use in optical memory systems
JPS58501745A (en) * 1981-10-15 1983-10-13 バロ−ス・コ−ポレ−ション 3-beam optical memory system
JPS59500392A (en) * 1981-10-15 1984-03-08 バロ−ス・コ−ポレ−ション Optical memory system provides improved track following
JPS5891537A (en) * 1981-11-25 1983-05-31 Hitachi Ltd Information recording and playback method
JPH05197990A (en) * 1982-03-12 1993-08-06 Thomson Csf Movable data medium and optical tracking device using movable data medium
JPS58185051A (en) * 1982-03-12 1983-10-28 トムソン−セエスエフ Mobile preetched data medium and optical tracking device using same
JPS58185046A (en) * 1982-03-12 1983-10-28 トムソン−セエスエフ Method and device for generating control signal of track scanning spot position of data medium
JPH08235622A (en) * 1982-03-12 1996-09-13 Thomson Csf Apparatus and method for optical tracking for moving data medium
JPS593728A (en) * 1982-06-15 1984-01-10 トムソン−セエスエフ Optical method and device for focusing light energy on reference surface of data medium and the medium
JPS59110044A (en) * 1982-12-13 1984-06-25 Akai Electric Co Ltd Detecting method of tracking servo signal of optical pickup
JPS60151845A (en) * 1984-01-20 1985-08-09 Hitachi Ltd Optical information recording and reproducing device
JPS60217538A (en) * 1985-03-15 1985-10-31 Hitachi Ltd Optical recording and reproducing device
JPH08227531A (en) * 1985-05-10 1996-09-03 Alcatel Thomson Gigadisc Device for reading information medium with pre-record pattern
JPS6318529A (en) * 1986-07-11 1988-01-26 Hitachi Ltd Optical disk tracking method
JPS6320726A (en) * 1986-07-15 1988-01-28 Hitachi Ltd Optical disk device
US5002468A (en) * 1987-05-28 1991-03-26 Yamada Yuki Seizo Co., Ltd. Switching device for reciprocating pumps
US4923168A (en) * 1987-06-15 1990-05-08 501 Yamada Yuki Seizo Co., Ltd. Spool type switching valve device
JPH01155525A (en) * 1987-12-11 1989-06-19 Hitachi Ltd optical disc device
WO2008120354A1 (en) * 2007-03-29 2008-10-09 Pioneer Corporation Multi-layer optical recording medium manufacturing method and multi-layer optical recording device
JPWO2008120354A1 (en) * 2007-03-29 2010-07-15 パイオニア株式会社 Multilayer optical recording medium manufacturing method and multilayer optical recording medium recording apparatus
US8111604B2 (en) 2007-03-29 2012-02-07 Pioneer Corporation Fabrication method of multilayer optical record medium and recording apparatus for multilayered optical record medium

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