JPH0559507B2 - - Google Patents

Info

Publication number
JPH0559507B2
JPH0559507B2 JP61045761A JP4576186A JPH0559507B2 JP H0559507 B2 JPH0559507 B2 JP H0559507B2 JP 61045761 A JP61045761 A JP 61045761A JP 4576186 A JP4576186 A JP 4576186A JP H0559507 B2 JPH0559507 B2 JP H0559507B2
Authority
JP
Japan
Prior art keywords
signal
comparison voltage
detection circuit
memory device
reproduction
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
JP61045761A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62202360A (ja
Inventor
Hiroshi Fuji
Shigemi Maeda
Noriaki Sakamoto
Kunio Kojima
Takeshi Yamaguchi
Shigeo Terajima
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 JP4576186A priority Critical patent/JPS62202360A/ja
Priority to US07/012,087 priority patent/US4924447A/en
Priority to EP87101642A priority patent/EP0232867B1/fr
Priority to DE8787101642T priority patent/DE3770283D1/de
Publication of JPS62202360A publication Critical patent/JPS62202360A/ja
Priority to US07/440,261 priority patent/US4999824A/en
Priority to US07/564,799 priority patent/US5134607A/en
Publication of JPH0559507B2 publication Critical patent/JPH0559507B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
JP4576186A 1986-02-07 1986-02-28 光メモリ装置の信号検出回路 Granted JPS62202360A (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP4576186A JPS62202360A (ja) 1986-02-28 1986-02-28 光メモリ装置の信号検出回路
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 (fr) 1986-02-07 1987-02-06 Appareil de mémorisation optique
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
JP4576186A JPS62202360A (ja) 1986-02-28 1986-02-28 光メモリ装置の信号検出回路

Publications (2)

Publication Number Publication Date
JPS62202360A JPS62202360A (ja) 1987-09-07
JPH0559507B2 true JPH0559507B2 (fr) 1993-08-31

Family

ID=12728275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4576186A Granted JPS62202360A (ja) 1986-02-07 1986-02-28 光メモリ装置の信号検出回路

Country Status (1)

Country Link
JP (1) JPS62202360A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2633417B2 (ja) * 1991-08-02 1997-07-23 シャープ株式会社 光記録媒体駆動装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625215A (en) * 1979-08-06 1981-03-11 Toshiba Corp Data separating circuit
JPS59193567A (ja) * 1983-04-18 1984-11-02 Seiko Instr & Electronics Ltd テ−プデ−タの検出回路
JPS60193171A (ja) * 1984-03-15 1985-10-01 Sony Corp デイジタル信号の再生回路

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5625215A (en) * 1979-08-06 1981-03-11 Toshiba Corp Data separating circuit
JPS59193567A (ja) * 1983-04-18 1984-11-02 Seiko Instr & Electronics Ltd テ−プデ−タの検出回路
JPS60193171A (ja) * 1984-03-15 1985-10-01 Sony Corp デイジタル信号の再生回路

Also Published As

Publication number Publication date
JPS62202360A (ja) 1987-09-07

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