JPS5276003A - Optical information recording system - Google Patents
Optical information recording systemInfo
- Publication number
- JPS5276003A JPS5276003A JP50152000A JP15200075A JPS5276003A JP S5276003 A JPS5276003 A JP S5276003A JP 50152000 A JP50152000 A JP 50152000A JP 15200075 A JP15200075 A JP 15200075A JP S5276003 A JPS5276003 A JP S5276003A
- Authority
- JP
- Japan
- Prior art keywords
- information recording
- recording system
- optical information
- optical
- laser
- 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.)
- Granted
Links
Landscapes
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Lasers (AREA)
Abstract
PURPOSE: To provide an optical information recording system, in which there are provided in the opticalpath of a laser beam a aplurality of optical modulators having a colsed loop circuit for removal of the laser noises and drifts so as to remarkably inprove the S/N ratio of the recorded signals in an information recording disc.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50152000A JPS5834010B2 (en) | 1975-12-22 | 1975-12-22 | Kogakutekijiyouhoukirokuhoushiki |
US05/753,003 US4123780A (en) | 1975-12-22 | 1976-12-21 | Signal noise filtration for laser beam recording system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50152000A JPS5834010B2 (en) | 1975-12-22 | 1975-12-22 | Kogakutekijiyouhoukirokuhoushiki |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5276003A true JPS5276003A (en) | 1977-06-25 |
JPS5834010B2 JPS5834010B2 (en) | 1983-07-23 |
Family
ID=15530866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50152000A Expired JPS5834010B2 (en) | 1975-12-22 | 1975-12-22 | Kogakutekijiyouhoukirokuhoushiki |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5834010B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154660A (en) * | 1981-03-20 | 1982-09-24 | Mitsubishi Electric Corp | Optical type information reproducing device |
JPS57154658A (en) * | 1981-03-20 | 1982-09-24 | Mitsubishi Electric Corp | Optical type information reproducing device |
JPS58208949A (en) * | 1982-05-28 | 1983-12-05 | Matsushita Electric Ind Co Ltd | Optical modulating device |
JPS61195527U (en) * | 1986-04-30 | 1986-12-05 |
-
1975
- 1975-12-22 JP JP50152000A patent/JPS5834010B2/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57154660A (en) * | 1981-03-20 | 1982-09-24 | Mitsubishi Electric Corp | Optical type information reproducing device |
JPS57154658A (en) * | 1981-03-20 | 1982-09-24 | Mitsubishi Electric Corp | Optical type information reproducing device |
JPH0247015B2 (en) * | 1981-03-20 | 1990-10-18 | Mitsubishi Electric Corp | |
JPS58208949A (en) * | 1982-05-28 | 1983-12-05 | Matsushita Electric Ind Co Ltd | Optical modulating device |
JPS61195527U (en) * | 1986-04-30 | 1986-12-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS5834010B2 (en) | 1983-07-23 |
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