JPS6452267A - Optical information recording medium - Google Patents
Optical information recording mediumInfo
- 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
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.
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)
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 |
-
1987
- 1987-11-09 JP JP62280918A patent/JPS6452267A/en active Pending
Cited By (3)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT8024434A0 (en) | DISK MEDIA CONTAINING INFORMATION IN AN OPTICALLY READABLE INFORMATION STRUCTURE, AS WELL AS A READING APPARATUS CALLED DISC MEDIA. | |
NL191742C (en) | Reversible recording medium and information recording. | |
MY127161A (en) | Recording medium, recording apparatus, and reading apparatus | |
JPS57117106A (en) | Optical magnetic recording and reproducing method | |
EP0910069A3 (en) | Optical disk | |
DE3689886T2 (en) | Reversible optical information recording medium. | |
DE68928689D1 (en) | System and method for formatting recording media with high storage density | |
MX9504123A (en) | Method and device for recording data, data recording medium, and method and device for reproducing data. | |
EP0212099A3 (en) | Sector identification method for hard sectored hard files | |
EP0798711A3 (en) | Information recording disk with management areas | |
DE3583599D1 (en) | INFORMATION RECORDING MEDIUM. | |
GB1531185A (en) | Method of writing addresses on a magnetic recording mediu | |
JPS5363002A (en) | Signal recording system and disk type medium for recording signal | |
JPS5224027A (en) | Record regenerator | |
GB2186581B (en) | Optical information recording medium comprising layer of acrylate copolymer. | |
EP1139345A3 (en) | Data recording apparatus, data recording method, and optical recording medium | |
JPS6452267A (en) | Optical information recording medium | |
IT8125274A0 (en) | MAGNETORESISTING TRANSDUCER FOR READING OF A RECORDING MEDIA WITH HIGH INFORMATION DENSITY. | |
WO1988004825A1 (en) | Address mark encoding for a record storage medium | |
JPS5320310A (en) | Magnetic recording and reproducing system | |
AU6755787A (en) | Optical recording medium, its preparation and its use as a read only memory information carrier | |
EP0080878A3 (en) | Cache memory and method of control for use with magnetic disks | |
EP0953980A3 (en) | Reproducing apparatus with improved access to text information | |
JPS5320911A (en) | Magnetic recording information reading system | |
JPS51130210A (en) | Magnetic pen |