JPS62184629A - 光メモリ装置 - Google Patents

光メモリ装置

Info

Publication number
JPS62184629A
JPS62184629A JP2663686A JP2663686A JPS62184629A JP S62184629 A JPS62184629 A JP S62184629A JP 2663686 A JP2663686 A JP 2663686A JP 2663686 A JP2663686 A JP 2663686A JP S62184629 A JPS62184629 A JP S62184629A
Authority
JP
Japan
Prior art keywords
recording area
memory device
circuit
signal
optical memory
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.)
Granted
Application number
JP2663686A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0474780B2 (enrdf_load_stackoverflow
Inventor
Hiroshi Fuji
寛 藤
Shigemi Maeda
茂己 前田
Noriaki Sakamoto
坂本　範明
Shigeo Terajima
寺島　重男
Takeshi Yamaguchi
毅 山口
Kentaro Tsuji
健太郎 辻
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP2663686A priority Critical patent/JPS62184629A/ja
Priority to US07/012,087 priority patent/US4924447A/en
Priority to EP87101642A priority patent/EP0232867B1/en
Priority to DE8787101642T priority patent/DE3770283D1/de
Publication of JPS62184629A publication Critical patent/JPS62184629A/ja
Priority to US07/440,261 priority patent/US4999824A/en
Priority to US07/564,799 priority patent/US5134607A/en
Publication of JPH0474780B2 publication Critical patent/JPH0474780B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP2663686A 1986-02-07 1986-02-07 光メモリ装置 Granted JPS62184629A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2663686A JPS62184629A (ja) 1986-02-07 1986-02-07 光メモリ装置
US07/012,087 US4924447A (en) 1986-02-07 1987-02-06 Optical memory device for recording, reproducing or erasing information onto a recording medium, including a recorded region detecting circuit.
EP87101642A EP0232867B1 (en) 1986-02-07 1987-02-06 Optical memory device
DE8787101642T DE3770283D1 (de) 1986-02-07 1987-02-06 Optisches speichergeraet.
US07/440,261 US4999824A (en) 1986-02-07 1989-11-22 Magneto-optical memory device
US07/564,799 US5134607A (en) 1986-02-07 1990-08-09 Optical memory system for generating a timing control signal for detecting a recorded region through a playback signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2663686A JPS62184629A (ja) 1986-02-07 1986-02-07 光メモリ装置

Publications (2)

Publication Number Publication Date
JPS62184629A true JPS62184629A (ja) 1987-08-13
JPH0474780B2 JPH0474780B2 (enrdf_load_stackoverflow) 1992-11-27

Family

ID=12198934

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2663686A Granted JPS62184629A (ja) 1986-02-07 1986-02-07 光メモリ装置

Country Status (1)

Country Link
JP (1) JPS62184629A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01189071A (ja) * 1988-01-22 1989-07-28 Sharp Corp 情報記録再生装置
US5107473A (en) * 1989-10-11 1992-04-21 Sharp Kabushiki Kaisha Optical recording/reproducing device using permissible ranges for the value of an automatic gain control voltage
EP0511875A3 (en) * 1991-04-30 1994-05-11 Sharp Kk Information recording and reproducing apparatus
JP2002367283A (ja) * 2001-06-06 2002-12-20 Matsushita Electric Ind Co Ltd 光ディスクの記録情報消去方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158038A (ja) * 1982-03-15 1983-09-20 Toshiba Corp 光デイスク装置
JPS61134928A (ja) * 1984-12-05 1986-06-23 Fujitsu Ltd 記録／未記録信号判定回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58158038A (ja) * 1982-03-15 1983-09-20 Toshiba Corp 光デイスク装置
JPS61134928A (ja) * 1984-12-05 1986-06-23 Fujitsu Ltd 記録／未記録信号判定回路

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01189071A (ja) * 1988-01-22 1989-07-28 Sharp Corp 情報記録再生装置
US5107473A (en) * 1989-10-11 1992-04-21 Sharp Kabushiki Kaisha Optical recording/reproducing device using permissible ranges for the value of an automatic gain control voltage
EP0511875A3 (en) * 1991-04-30 1994-05-11 Sharp Kk Information recording and reproducing apparatus
JP2002367283A (ja) * 2001-06-06 2002-12-20 Matsushita Electric Ind Co Ltd 光ディスクの記録情報消去方法

Also Published As

Publication number Publication date
JPH0474780B2 (enrdf_load_stackoverflow) 1992-11-27

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