JPH0378695B2 - - Google Patents

Info

Publication number
JPH0378695B2
JPH0378695B2 JP60224548A JP22454885A JPH0378695B2 JP H0378695 B2 JPH0378695 B2 JP H0378695B2 JP 60224548 A JP60224548 A JP 60224548A JP 22454885 A JP22454885 A JP 22454885A JP H0378695 B2 JPH0378695 B2 JP H0378695B2
Authority
JP
Japan
Prior art keywords
light beam
erasing
recording
reproducing
information
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.)
Expired - Lifetime
Application number
JP60224548A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6284435A (ja
Inventor
Isao Sato
Akira Ichinose
Yoshihisa Fukushima
Yuzuru Kuroki
Juji Takagi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP60224548A priority Critical patent/JPS6284435A/ja
Priority to KR1019860008179A priority patent/KR910001328B1/ko
Priority to US06/915,576 priority patent/US4799208A/en
Priority to CN86106577A priority patent/CN86106577B/zh
Priority to CA000520033A priority patent/CA1266917A/en
Priority to DE8686113927T priority patent/DE3683718D1/de
Priority to EP86113927A priority patent/EP0218243B1/en
Publication of JPS6284435A publication Critical patent/JPS6284435A/ja
Publication of JPH0378695B2 publication Critical patent/JPH0378695B2/ja
Granted 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/006—Overwriting

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
JP60224548A 1985-10-08 1985-10-08 情報記録再生装置 Granted JPS6284435A (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP60224548A JPS6284435A (ja) 1985-10-08 1985-10-08 情報記録再生装置
KR1019860008179A KR910001328B1 (ko) 1985-10-08 1986-09-30 정보기록재생장치
US06/915,576 US4799208A (en) 1985-10-08 1986-10-03 Optical recording and reproducing apparatus having erasing function with controllable erasing beam
CN86106577A CN86106577B (zh) 1985-10-08 1986-10-07 信息记录重现装置
CA000520033A CA1266917A (en) 1985-10-08 1986-10-07 Data recording and reproducing apparatus
DE8686113927T DE3683718D1 (de) 1985-10-08 1986-10-08 Datenaufzeichnungs- und wiedergabegeraet.
EP86113927A EP0218243B1 (en) 1985-10-08 1986-10-08 Data recording and reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60224548A JPS6284435A (ja) 1985-10-08 1985-10-08 情報記録再生装置

Publications (2)

Publication Number Publication Date
JPS6284435A JPS6284435A (ja) 1987-04-17
JPH0378695B2 true JPH0378695B2 (cg-RX-API-DMAC10.html) 1991-12-16

Family

ID=16815515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60224548A Granted JPS6284435A (ja) 1985-10-08 1985-10-08 情報記録再生装置

Country Status (2)

Country Link
US (1) US4799208A (cg-RX-API-DMAC10.html)
JP (1) JPS6284435A (cg-RX-API-DMAC10.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2796290B2 (ja) * 1987-04-10 1998-09-10 株式会社日立製作所 可逆相変化を用いた情報記録方法
EP0315415B1 (en) * 1987-11-02 1993-08-18 Fujitsu Limited Overwriting information in magneto-optical memory
JPH0778984B2 (ja) * 1988-04-20 1995-08-23 シャープ株式会社 光記録媒体の記録再生装置
US20060153013A1 (en) * 2003-07-03 2006-07-13 Meinders Erwin R Method and apparatus for reading and recording information on a rewritable record carrier
GB0503730D0 (en) * 2005-02-23 2005-03-30 Medical Device Innovations Ltd Pneumothorax relief device
US8992482B2 (en) 2010-03-12 2015-03-31 Control Medical Technology, Llc Syringe with flow control valves and associated methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5733441A (en) * 1980-08-07 1982-02-23 Matsushita Electric Ind Co Ltd Optical information recorder and reproducer
JPS5894143A (ja) * 1981-12-01 1983-06-04 Matsushita Electric Ind Co Ltd 光学的記録再生装置
JPS58189840A (ja) * 1982-04-30 1983-11-05 Hitachi Ltd 光学的情報処理装置
JPS5968844A (ja) * 1982-10-14 1984-04-18 Matsushita Electric Ind Co Ltd 光学的可逆記録再生装置
US4598395A (en) * 1983-05-31 1986-07-01 Ltv Aerospace And Defense Co. Erasable optical read/write data storage system
US4679184A (en) * 1984-06-08 1987-07-07 Matsushita Electric Industrial Co., Ltd. Optical recording and reproducing apparatus having erasing beam spot with asymmetrical intensity distribution
JPS60263351A (ja) * 1984-06-08 1985-12-26 Matsushita Electric Ind Co Ltd 消去可能な光学的記録再生装置
CA1245762A (en) * 1984-06-15 1988-11-29 Noboru Yamada Reversible optical information recording medium

Also Published As

Publication number Publication date
US4799208A (en) 1989-01-17
JPS6284435A (ja) 1987-04-17

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