JPS644933A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPS644933A
JPS644933A JP62157766A JP15776687A JPS644933A JP S644933 A JPS644933 A JP S644933A JP 62157766 A JP62157766 A JP 62157766A JP 15776687 A JP15776687 A JP 15776687A JP S644933 A JPS644933 A JP S644933A
Authority
JP
Japan
Prior art keywords
identification information
patterns
information recording
information
recording medium
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
JP62157766A
Other languages
Japanese (ja)
Inventor
Toshimitsu Tanaka
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 JP62157766A priority Critical patent/JPS644933A/en
Publication of JPS644933A publication Critical patent/JPS644933A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To facilitate the automation of process control and shipping inspection without impairing disk quality by forming identification information such as serial numbers of optical disks in information tracks. CONSTITUTION:Tracking patterns 1, information recording patterns 2 and identification information patterns formed by dropping out part of the tracking patterns are formed. These patterns are an information recording area 4 and the identification information such as serial numbers 5 with a completed disk plate. The reading of the identification information by visual observation or optically is thereby enabled, by which the automation in the process control and shipping inspection is facilitated. Since the generation of dust at the time of forming the identification information is obviated, the rate of non-defective articles is improved.
JP62157766A 1987-06-26 1987-06-26 Optical information recording medium Pending JPS644933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62157766A JPS644933A (en) 1987-06-26 1987-06-26 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62157766A JPS644933A (en) 1987-06-26 1987-06-26 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPS644933A true JPS644933A (en) 1989-01-10

Family

ID=15656843

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62157766A Pending JPS644933A (en) 1987-06-26 1987-06-26 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPS644933A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH056576A (en) * 1990-11-17 1993-01-14 Taiyo Yuden Co Ltd Substrate for optical information recording carrier and production thereof
US5688173A (en) * 1984-07-28 1997-11-18 Sega Enterprises, Ltd. Information storage medium and electronic device using the same
US5846131A (en) * 1993-07-28 1998-12-08 Sega Enterprises, Ltd. Information storage medium and electronic device using the same for authentication purposes
US6102800A (en) * 1993-07-28 2000-08-15 Sega Enterprises, Ltd. Information storage medium and electronic device using the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5688173A (en) * 1984-07-28 1997-11-18 Sega Enterprises, Ltd. Information storage medium and electronic device using the same
JPH056576A (en) * 1990-11-17 1993-01-14 Taiyo Yuden Co Ltd Substrate for optical information recording carrier and production thereof
US5846131A (en) * 1993-07-28 1998-12-08 Sega Enterprises, Ltd. Information storage medium and electronic device using the same for authentication purposes
US6034930A (en) * 1993-07-28 2000-03-07 Sega Enterprises, Ltd. Information storage medium and electronic device using the same for authentication purposes
US6102800A (en) * 1993-07-28 2000-08-15 Sega Enterprises, Ltd. Information storage medium and electronic device using the same

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