JPS6353726A - Optical reproducing device and optical recording and reproducing device - Google Patents

Optical reproducing device and optical recording and reproducing device

Info

Publication number
JPS6353726A
JPS6353726A JP19755386A JP19755386A JPS6353726A JP S6353726 A JPS6353726 A JP S6353726A JP 19755386 A JP19755386 A JP 19755386A JP 19755386 A JP19755386 A JP 19755386A JP S6353726 A JPS6353726 A JP S6353726A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
recording
medium
optical
time
reproducing
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
JP19755386A
Inventor
Mitsunobu Furumoto
Yasuhiro Goto
Satoshi Kikutani
Kanji Kubo
Hiroshi Taniguchi
Naoji Usuki
Osamu Zaitsu
Original Assignee
Matsushita Electric Ind 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

Links

Abstract

PURPOSE: To attain recording or reproduction with high density, by reproducing a circular arc shaped recording locus formed on the recording medium of a rotary optical head being rotated setting an axis vertical to the recording plane of a tape shape, or a sheet shape, or a plate shape optical recording medium, as a rotary shaft, in a state without being brought into contact in order.
CONSTITUTION: In the optical recording medium 4, a medium suitable for optical recording such as a material having phase change by heating, or the optical recording medium in which Curie point recording is utilized, is formed in a thin film shape on a tape, or a sheet. At time of recording, a laser light source 5 is modulated by a signal, and the circular arc shaped recording locus 13 is formed sequentially on the recording medium. At time of reproduction, the power of the laser light source 5 is weakened less than the power in a recording time, and traces on the recording locus through a similar path. At this time, the level, or the polarizing plane of reflected light from the recording medium, is varied, and the reflected light passes through a half mirror 7, and a lens 11, and a reproducing signal can be taken out by a photodetector 12. In this way, since the recording plane can be fed without being brought into contact even with a tape guide, deterioration in the recording plane is prevented from occurring, and a device can endure in repeated use for a long time.
COPYRIGHT: (C)1988,JPO&Japio
JP19755386A 1986-08-22 1986-08-22 Optical reproducing device and optical recording and reproducing device Pending JPS6353726A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19755386A JPS6353726A (en) 1986-08-22 1986-08-22 Optical reproducing device and optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19755386A JPS6353726A (en) 1986-08-22 1986-08-22 Optical reproducing device and optical recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6353726A true true JPS6353726A (en) 1988-03-08

Family

ID=16376403

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19755386A Pending JPS6353726A (en) 1986-08-22 1986-08-22 Optical reproducing device and optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6353726A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07123680A (en) * 1992-03-09 1995-05-12 Shicoh Eng Co Ltd Swinging brushless actuator
US5617391A (en) * 1994-02-03 1997-04-01 Hitachi, Ltd. Optical recording and reproducing system
RU2477895C1 (en) * 2011-10-04 2013-03-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Воронежская государственная технологическая академия (ФГБОУ ВПО ВГТА) Cd player drive
US8869180B2 (en) * 2012-11-27 2014-10-21 Oracle America, Inc. Rotary head multi-layer data storage and retrieval system and method
JP2015533445A (en) * 2012-11-07 2015-11-24 オラクル・インターナショナル・コーポレイション Rotary head data storage and extraction system and method for data validation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485049A (en) * 1977-12-20 1979-07-06 Olympus Optical Co Ltd Optical scanning method
JPS62287428A (en) * 1986-06-05 1987-12-14 Nippon Telegr & Teleph Corp <Ntt> Optical card recording and reproducing system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5485049A (en) * 1977-12-20 1979-07-06 Olympus Optical Co Ltd Optical scanning method
JPS62287428A (en) * 1986-06-05 1987-12-14 Nippon Telegr & Teleph Corp <Ntt> Optical card recording and reproducing system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07123680A (en) * 1992-03-09 1995-05-12 Shicoh Eng Co Ltd Swinging brushless actuator
US5617391A (en) * 1994-02-03 1997-04-01 Hitachi, Ltd. Optical recording and reproducing system
RU2477895C1 (en) * 2011-10-04 2013-03-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Воронежская государственная технологическая академия (ФГБОУ ВПО ВГТА) Cd player drive
JP2015533445A (en) * 2012-11-07 2015-11-24 オラクル・インターナショナル・コーポレイション Rotary head data storage and extraction system and method for data validation
US8869180B2 (en) * 2012-11-27 2014-10-21 Oracle America, Inc. Rotary head multi-layer data storage and retrieval system and method

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