JPH053053B2 - - Google Patents

Info

Publication number
JPH053053B2
JPH053053B2 JP61187854A JP18785486A JPH053053B2 JP H053053 B2 JPH053053 B2 JP H053053B2 JP 61187854 A JP61187854 A JP 61187854A JP 18785486 A JP18785486 A JP 18785486A JP H053053 B2 JPH053053 B2 JP H053053B2
Authority
JP
Japan
Prior art keywords
recording
tracking
track
sub
spot
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
JP61187854A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6344322A (ja
Inventor
Kyonobu Endo
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP61187854A priority Critical patent/JPS6344322A/ja
Priority to CA000533847A priority patent/CA1295734C/en
Priority to EP87303015A priority patent/EP0241267B2/en
Priority to DE8787303015T priority patent/DE3777863D1/de
Publication of JPS6344322A publication Critical patent/JPS6344322A/ja
Priority to US07/479,205 priority patent/US5070490A/en
Publication of JPH053053B2 publication Critical patent/JPH053053B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Credit Cards Or The Like (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Optical Recording Or Reproduction (AREA)
JP61187854A 1986-04-09 1986-08-12 カード状光学的情報記録媒体 Granted JPS6344322A (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP61187854A JPS6344322A (ja) 1986-08-12 1986-08-12 カード状光学的情報記録媒体
CA000533847A CA1295734C (en) 1986-04-09 1987-04-03 Optical recording medium with tracking tracks arranged with a constant pitch and a method for detecting tracking signal from said medium
EP87303015A EP0241267B2 (en) 1986-04-09 1987-04-07 Optical recording medium
DE8787303015T DE3777863D1 (de) 1986-04-09 1987-04-07 Optischer aufzeichnungstraeger.
US07/479,205 US5070490A (en) 1986-04-09 1990-02-13 Optical recording medium with tracking tracks extending beyond the recording layer and a method for detecting tracking signal from said medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61187854A JPS6344322A (ja) 1986-08-12 1986-08-12 カード状光学的情報記録媒体

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP4149937A Division JP2501270B2 (ja) 1992-05-18 1992-05-18 光学的情報記録方法

Publications (2)

Publication Number Publication Date
JPS6344322A JPS6344322A (ja) 1988-02-25
JPH053053B2 true JPH053053B2 (enrdf_load_html_response) 1993-01-13

Family

ID=16213377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61187854A Granted JPS6344322A (ja) 1986-04-09 1986-08-12 カード状光学的情報記録媒体

Country Status (1)

Country Link
JP (1) JPS6344322A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0386944A (ja) 1989-05-15 1991-04-11 Seiko Epson Corp 光学式情報記録媒体

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5841446A (ja) * 1981-09-04 1983-03-10 Hitachi Ltd 光学的情報追跡方式
JPS59193549A (ja) * 1983-04-15 1984-11-02 Tdk Corp 光カ−ド用情報記録読取装置
US4598393A (en) * 1984-04-06 1986-07-01 Drexler Technology Corporation Three-beam optical servo tracking system with two-track parallel readout
JPS6151627A (ja) * 1984-08-22 1986-03-14 Comput Services Corp 光メモリカ−ド読出し装置
JPS6257126A (ja) * 1985-09-05 1987-03-12 Canon Inc 光学的情報記録媒体

Also Published As

Publication number Publication date
JPS6344322A (ja) 1988-02-25

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term