CA1196098A - Memoire optique - Google Patents

Memoire optique

Info

Publication number
CA1196098A
CA1196098A CA000416313A CA416313A CA1196098A CA 1196098 A CA1196098 A CA 1196098A CA 000416313 A CA000416313 A CA 000416313A CA 416313 A CA416313 A CA 416313A CA 1196098 A CA1196098 A CA 1196098A
Authority
CA
Canada
Prior art keywords
signal
actuator
light
memory apparatus
detecting
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
Application number
CA000416313A
Other languages
English (en)
Inventor
Takeshi Maeda
Masahiro Takasago
Tokuya Kaneda
Yasumitsu Mizoguchi
Motoo Uno
Kouji Muraoka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Priority claimed from JP56050035A external-priority patent/JPS5933654B2/ja
Priority claimed from JP18786981A external-priority patent/JPS5891536A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of CA1196098A publication Critical patent/CA1196098A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
CA000416313A 1981-04-02 1982-11-25 Memoire optique Expired CA1196098A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP56050035A JPS5933654B2 (ja) 1973-01-15 1981-04-02 粉末冶金圧縮成形体
JP18786981A JPS5891536A (ja) 1981-11-25 1981-11-25 デイジタル光デイスクのアクセス方式
JP187869/1981 1981-11-25
JP50035/1981 1982-03-30

Publications (1)

Publication Number Publication Date
CA1196098A true CA1196098A (fr) 1985-10-29

Family

ID=26390478

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000416313A Expired CA1196098A (fr) 1981-04-02 1982-11-25 Memoire optique

Country Status (1)

Country Link
CA (1) CA1196098A (fr)

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry