JPS57172552A - Reproducing method for stored information - Google Patents

Reproducing method for stored information

Info

Publication number
JPS57172552A
JPS57172552A JP56057902A JP5790281A JPS57172552A JP S57172552 A JPS57172552 A JP S57172552A JP 56057902 A JP56057902 A JP 56057902A JP 5790281 A JP5790281 A JP 5790281A JP S57172552 A JPS57172552 A JP S57172552A
Authority
JP
Japan
Prior art keywords
information
stored information
medium
read
stored
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
JP56057902A
Other languages
Japanese (ja)
Inventor
Hideo Ando
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56057903A priority Critical patent/JPS57172553A/en
Priority to JP56057902A priority patent/JPS57172552A/en
Publication of JPS57172552A publication Critical patent/JPS57172552A/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
    • G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers

Abstract

PURPOSE:To easily reproduce stored information by reading recorded information out of an information storage medium, and recording the read information on a medium for stored information reproduction in the form of fine surface unevenness. CONSTITUTION:An information storage medium 1 on which optical stored information is recorded on a recording layer by state changes of pits. etc., with condensed laser light, etc., is rotated and the information is read by a reading head 16 to transfer the information contacts to an information reading circuit 19 in time series. In the information reading circuit 19, the information is amplified and transferred to a writing circuit 20; and the irradiation of the surface of a medium 4 for stored information reproduction or its original disk 4' with laser light is controlled to record the read information on the medium 4 or its original disk 4' in the form of fine surface unevenness. Thus, the stored information is reproduced easily.
JP56057902A 1981-04-17 1981-04-17 Reproducing method for stored information Pending JPS57172552A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP56057903A JPS57172553A (en) 1981-04-17 1981-04-17 Reproducing device for stored information
JP56057902A JPS57172552A (en) 1981-04-17 1981-04-17 Reproducing method for stored information

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56057903A JPS57172553A (en) 1981-04-17 1981-04-17 Reproducing device for stored information
JP56057902A JPS57172552A (en) 1981-04-17 1981-04-17 Reproducing method for stored information

Publications (1)

Publication Number Publication Date
JPS57172552A true JPS57172552A (en) 1982-10-23

Family

ID=26398991

Family Applications (2)

Application Number Title Priority Date Filing Date
JP56057902A Pending JPS57172552A (en) 1981-04-17 1981-04-17 Reproducing method for stored information
JP56057903A Pending JPS57172553A (en) 1981-04-17 1981-04-17 Reproducing device for stored information

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP56057903A Pending JPS57172553A (en) 1981-04-17 1981-04-17 Reproducing device for stored information

Country Status (1)

Country Link
JP (2) JPS57172552A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171119A (en) * 1983-03-18 1984-09-27 Hitachi Ltd Device for formation of laser pattern
EP0234709A2 (en) * 1986-01-21 1987-09-02 Matsushita Electric Industrial Co., Ltd. Optical disk duplicating apparatus and duplicated optical disk
US5025432A (en) * 1987-09-14 1991-06-18 Pioneer Electronic Corporation Autochanger of writable discs including a non-volatile memory for storing most recent defect management information relating to the writable discs
US5661715A (en) * 1994-10-20 1997-08-26 Sony Corporation Mass produced multisessions disc for playback on audio-only and CD-ROM players

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6190838B1 (en) * 1998-04-06 2001-02-20 Imation Corp. Process for making multiple data storage disk stampers from one master
US6616867B2 (en) 2001-02-07 2003-09-09 Imation Corp. Multi-generation stampers
US6638692B1 (en) 2001-07-16 2003-10-28 Imation Corp. Replicated regions on optical disks
US7008208B1 (en) 2002-01-17 2006-03-07 Imation Corp. Grounded molding tool for manufacture of optical components
US6977052B1 (en) 2002-01-18 2005-12-20 Imation Corp Check disk for optical data storage disk manufacturing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5622231A (en) * 1979-07-31 1981-03-02 Toshiba Corp Optical disk duplicator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59171119A (en) * 1983-03-18 1984-09-27 Hitachi Ltd Device for formation of laser pattern
EP0234709A2 (en) * 1986-01-21 1987-09-02 Matsushita Electric Industrial Co., Ltd. Optical disk duplicating apparatus and duplicated optical disk
US5025432A (en) * 1987-09-14 1991-06-18 Pioneer Electronic Corporation Autochanger of writable discs including a non-volatile memory for storing most recent defect management information relating to the writable discs
US5661715A (en) * 1994-10-20 1997-08-26 Sony Corporation Mass produced multisessions disc for playback on audio-only and CD-ROM players
US5905709A (en) * 1994-10-20 1999-05-18 Sony Corporation Mass production of multisession discs for playback on audio-only and CD-ROM players

Also Published As

Publication number Publication date
JPS57172553A (en) 1982-10-23

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