JPS6452267A - Optical information recording medium - Google Patents

Optical information recording medium

Info

Publication number
JPS6452267A
JPS6452267A JP62280918A JP28091887A JPS6452267A JP S6452267 A JPS6452267 A JP S6452267A JP 62280918 A JP62280918 A JP 62280918A JP 28091887 A JP28091887 A JP 28091887A JP S6452267 A JPS6452267 A JP S6452267A
Authority
JP
Japan
Prior art keywords
disk
recording density
inch
optical disk
line recording
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
JP62280918A
Inventor
Tadashi Saito
Takashi Takeuchi
Yasuo Otsuka
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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62280918A priority Critical patent/JPS6452267A/en
Publication of JPS6452267A publication Critical patent/JPS6452267A/en
Application status is Pending legal-status Critical

Links

Abstract

PURPOSE:To obtain a format applicable to an optical disk with a specific size or below by keeping a line recording density on a track and an effective data transfer speed the same as those of a conventional system and providing sample marks at a required interval. CONSTITUTION:In an optical information recording disk medium, one track consists of 24 sectors and one sector comprises 86 segments and one segment is made up of 2-byte sample marks and 8-byte data area. Thus, in case of 2,400rpm, the line recording density is 0.91mum/bit an user data capacity is 128 Mbytes. Then the outer diameter of the disk is 84mm or below and the inner diameter is 32mm or over. The line recording density is higher by 4% in comparison with a conventional disk of 5.25 inch, but it can be realized and the effective data transfer rate in both the cases is 3.9Mbps. Thus, a format for a 3.5 inch optical disk in common use for a 5.25 inch optical disk is obtained.
JP62280918A 1987-11-09 1987-11-09 Optical information recording medium Pending JPS6452267A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62280918A JPS6452267A (en) 1987-11-09 1987-11-09 Optical information recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62280918A JPS6452267A (en) 1987-11-09 1987-11-09 Optical information recording medium

Publications (1)

Publication Number Publication Date
JPS6452267A true JPS6452267A (en) 1989-02-28

Family

ID=17631748

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62280918A Pending JPS6452267A (en) 1987-11-09 1987-11-09 Optical information recording medium

Country Status (1)

Country Link
JP (1) JPS6452267A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220543A (en) * 1989-02-14 1993-06-15 Victor Company Of Japan, Ltd. Compact optical disc recording/reproducing system
US5317553A (en) * 1990-08-23 1994-05-31 Sony Corporation Optical disc recording and/or reproducing apparatus having a buffer memory to accommodate track jumps
US5400316A (en) * 1990-08-24 1995-03-21 Sony Corporation High density small-diameter magnetic optical disk

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5220543A (en) * 1989-02-14 1993-06-15 Victor Company Of Japan, Ltd. Compact optical disc recording/reproducing system
US5317553A (en) * 1990-08-23 1994-05-31 Sony Corporation Optical disc recording and/or reproducing apparatus having a buffer memory to accommodate track jumps
US5400316A (en) * 1990-08-24 1995-03-21 Sony Corporation High density small-diameter magnetic optical disk

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