JPS4994304A - - Google Patents
Info
- Publication number
- JPS4994304A JPS4994304A JP573273A JP573273A JPS4994304A JP S4994304 A JPS4994304 A JP S4994304A JP 573273 A JP573273 A JP 573273A JP 573273 A JP573273 A JP 573273A JP S4994304 A JPS4994304 A JP S4994304A
- Authority
- JP
- Japan
- 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)
- Mechanical Optical Scanning Systems (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48005732A JPS5951049B2 (en) | 1973-01-10 | 1973-01-10 | information reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48005732A JPS5951049B2 (en) | 1973-01-10 | 1973-01-10 | information reproducing device |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13712484A Division JPH0232689B2 (en) | 1984-07-04 | 1984-07-04 | TORATSUKINGUERAAKENSHUTSUHOSHIKI |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS4994304A true JPS4994304A (en) | 1974-09-07 |
JPS5951049B2 JPS5951049B2 (en) | 1984-12-12 |
Family
ID=11619269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48005732A Expired JPS5951049B2 (en) | 1973-01-10 | 1973-01-10 | information reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5951049B2 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49130127A (en) * | 1973-04-12 | 1974-12-13 | ||
JPS5146817A (en) * | 1974-10-18 | 1976-04-21 | Matsushita Electric Ind Co Ltd | |
JPS5248912A (en) * | 1975-10-15 | 1977-04-19 | Philips Nv | Mirror device for tracing video disk reproducer |
JPS52104901A (en) * | 1975-11-19 | 1977-09-02 | Fuji Telecasting Co Ltd | Photoelectric reproducer |
JPS5317706A (en) * | 1976-08-02 | 1978-02-18 | Philips Nv | Optical recording carrier reader |
JPS5494306A (en) * | 1978-01-10 | 1979-07-26 | Mitsubishi Electric Corp | Track tracking device |
JPS5952439A (en) * | 1983-08-15 | 1984-03-27 | Hitachi Ltd | Information recorder |
EP0141396A2 (en) | 1981-11-25 | 1985-05-15 | Hitachi, Ltd. | Access device for positioning a light beam to a desired guide groove of an optical memory apparatus |
US4866687A (en) * | 1985-05-31 | 1989-09-12 | Hitachi, Ltd. | Optical disc access method and optical disk storage using coarse and fine actuators |
US5396477A (en) * | 1988-09-21 | 1995-03-07 | Hitachi, Ltd. | Light spot positioning method and optical disc memory apparatus employing the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2003057A1 (en) * | 1970-01-23 | 1971-07-29 | Battelle Development Corp | Audiovisual signal recording and playback system |
JPS4974907A (en) * | 1972-11-17 | 1974-07-19 | ||
JPS5111457A (en) * | 1974-07-18 | 1976-01-29 | Kazuhiko Kaneko |
-
1973
- 1973-01-10 JP JP48005732A patent/JPS5951049B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2003057A1 (en) * | 1970-01-23 | 1971-07-29 | Battelle Development Corp | Audiovisual signal recording and playback system |
JPS4974907A (en) * | 1972-11-17 | 1974-07-19 | ||
JPS5111457A (en) * | 1974-07-18 | 1976-01-29 | Kazuhiko Kaneko |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5751177B2 (en) * | 1973-04-12 | 1982-10-30 | ||
JPS49130127A (en) * | 1973-04-12 | 1974-12-13 | ||
JPS5146817A (en) * | 1974-10-18 | 1976-04-21 | Matsushita Electric Ind Co Ltd | |
JPS5444202B2 (en) * | 1974-10-18 | 1979-12-25 | ||
JPS5248912A (en) * | 1975-10-15 | 1977-04-19 | Philips Nv | Mirror device for tracing video disk reproducer |
JPH026414Y2 (en) * | 1975-10-15 | 1990-02-16 | ||
JPS5730835U (en) * | 1975-10-15 | 1982-02-18 | ||
JPS52104901A (en) * | 1975-11-19 | 1977-09-02 | Fuji Telecasting Co Ltd | Photoelectric reproducer |
JPS5518970B2 (en) * | 1975-11-19 | 1980-05-22 | ||
JPS5317706A (en) * | 1976-08-02 | 1978-02-18 | Philips Nv | Optical recording carrier reader |
JPS638536B2 (en) * | 1976-08-02 | 1988-02-23 | Fuiritsupusu Furuuiranpenfuaburiken Nv | |
JPH01264637A (en) * | 1976-08-02 | 1989-10-20 | Philips Gloeilampenfab:Nv | Optical reader of record carrier |
JPS6037983B2 (en) * | 1978-01-10 | 1985-08-29 | 三菱電機株式会社 | truck tracking device |
JPS5494306A (en) * | 1978-01-10 | 1979-07-26 | Mitsubishi Electric Corp | Track tracking device |
EP0141396A2 (en) | 1981-11-25 | 1985-05-15 | Hitachi, Ltd. | Access device for positioning a light beam to a desired guide groove of an optical memory apparatus |
JPS5952439A (en) * | 1983-08-15 | 1984-03-27 | Hitachi Ltd | Information recorder |
JPS6348085B2 (en) * | 1983-08-15 | 1988-09-27 | Hitachi Ltd | |
US4866687A (en) * | 1985-05-31 | 1989-09-12 | Hitachi, Ltd. | Optical disc access method and optical disk storage using coarse and fine actuators |
US5396477A (en) * | 1988-09-21 | 1995-03-07 | Hitachi, Ltd. | Light spot positioning method and optical disc memory apparatus employing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS5951049B2 (en) | 1984-12-12 |