JPS5622227A - Information recording system of optical disk - Google Patents
Information recording system of optical diskInfo
- Publication number
- JPS5622227A JPS5622227A JP9771779A JP9771779A JPS5622227A JP S5622227 A JPS5622227 A JP S5622227A JP 9771779 A JP9771779 A JP 9771779A JP 9771779 A JP9771779 A JP 9771779A JP S5622227 A JPS5622227 A JP S5622227A
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- information
- pit
- line
- pits
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE: To improve the precision of tracking operation with the same simple constitution with reproduction by previously formating a pit line on a optical disk and by recording information while tracking the pin line.
CONSTITUTION: Pit line 1 consists of pits 2 of fixed diameter arrayed at constant pitch (m). In manufacture of an optical disk, this pit line 1 can be formed by easy and highly precise work such as press. Then, while pits 3 are tracked by an optical head, the optical disk with pit line 1 previously formated is newly perforated with laser beam light in accordance with information to be recorded between respective pits 2 of pit line 1, recording the information. In the recording example in the figure, pit 3 is bored for information "1", and nothing for "0".
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9771779A JPS5622227A (en) | 1979-07-31 | 1979-07-31 | Information recording system of optical disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9771779A JPS5622227A (en) | 1979-07-31 | 1979-07-31 | Information recording system of optical disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5622227A true JPS5622227A (en) | 1981-03-02 |
Family
ID=14199634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9771779A Pending JPS5622227A (en) | 1979-07-31 | 1979-07-31 | Information recording system of optical disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5622227A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2508218A1 (en) * | 1981-06-18 | 1982-12-24 | Tokyo Shibaura Electric Co | OPTICAL DISK AND OPTICAL DISC APPARATUS FOR USE THEREOF |
EP0089734A2 (en) * | 1982-03-19 | 1983-09-28 | Control Data Corporation | Disk-shaped record carrier |
FR2569038A1 (en) * | 1981-11-25 | 1986-02-14 | Hitachi Ltd | APPARATUS FOR RECORDING AND REPRODUCING INFORMATION |
JPS61264559A (en) * | 1985-05-17 | 1986-11-22 | Ricoh Co Ltd | Optical disc |
JPS62170027A (en) * | 1986-01-22 | 1987-07-27 | Hitachi Ltd | Information recording medium and recording/reproducing method |
JPS62264435A (en) * | 1986-05-12 | 1987-11-17 | Csk Corp | Recording system for data of optical recording medium |
JPS63823A (en) * | 1986-05-17 | 1988-01-05 | Csk Corp | Data read/write system for optical recording medium |
WO1989000749A1 (en) * | 1987-07-15 | 1989-01-26 | Kabushiki Kaisha Csk | Apparatus for writing/reading data on an optical recording medium |
-
1979
- 1979-07-31 JP JP9771779A patent/JPS5622227A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2508218A1 (en) * | 1981-06-18 | 1982-12-24 | Tokyo Shibaura Electric Co | OPTICAL DISK AND OPTICAL DISC APPARATUS FOR USE THEREOF |
US4761775A (en) * | 1981-06-18 | 1988-08-02 | Tokyo Shibaura Denki Kabushiki Kaisha | Optical disc using tracking and clocking prepits and address prepits between adjacent ones of the tracking and clocking prepits, and an optical apparatus using such a disc |
FR2569038A1 (en) * | 1981-11-25 | 1986-02-14 | Hitachi Ltd | APPARATUS FOR RECORDING AND REPRODUCING INFORMATION |
EP0089734A2 (en) * | 1982-03-19 | 1983-09-28 | Control Data Corporation | Disk-shaped record carrier |
JPS61264559A (en) * | 1985-05-17 | 1986-11-22 | Ricoh Co Ltd | Optical disc |
JPS62170027A (en) * | 1986-01-22 | 1987-07-27 | Hitachi Ltd | Information recording medium and recording/reproducing method |
JPS62264435A (en) * | 1986-05-12 | 1987-11-17 | Csk Corp | Recording system for data of optical recording medium |
JPS63823A (en) * | 1986-05-17 | 1988-01-05 | Csk Corp | Data read/write system for optical recording medium |
WO1989000749A1 (en) * | 1987-07-15 | 1989-01-26 | Kabushiki Kaisha Csk | Apparatus for writing/reading data on an optical recording medium |
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