JPS5589921A - Optical recording and reproducing unit - Google Patents
Optical recording and reproducing unitInfo
- Publication number
- JPS5589921A JPS5589921A JP16348878A JP16348878A JPS5589921A JP S5589921 A JPS5589921 A JP S5589921A JP 16348878 A JP16348878 A JP 16348878A JP 16348878 A JP16348878 A JP 16348878A JP S5589921 A JPS5589921 A JP S5589921A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- recorded part
- signal
- unit
- envelope
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16348878A JPS5589921A (en) | 1978-12-28 | 1978-12-28 | Optical recording and reproducing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16348878A JPS5589921A (en) | 1978-12-28 | 1978-12-28 | Optical recording and reproducing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5589921A true JPS5589921A (en) | 1980-07-08 |
Family
ID=15774810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16348878A Pending JPS5589921A (en) | 1978-12-28 | 1978-12-28 | Optical recording and reproducing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5589921A (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0184195A2 (en) * | 1984-12-06 | 1986-06-11 | Hitachi, Ltd. | Optical disc recording apparatus |
US4819093A (en) * | 1984-10-02 | 1989-04-04 | Fuji Photo Film Co., Ltd. | Rotary magnetic recording-reproducing apparatus with disc track checking |
JPH01189071A (ja) * | 1988-01-22 | 1989-07-28 | Sharp Corp | 情報記録再生装置 |
US4901301A (en) * | 1987-06-18 | 1990-02-13 | Pioneer Electronic Corporation | Region detection system for detecting empty sectors on a recording medium |
US4947280A (en) * | 1984-10-02 | 1990-08-07 | Fuji Photo Film Co., Ltd. | Rotary magnetic reproducing apparatus with disc sensing logic |
US5051849A (en) * | 1985-11-28 | 1991-09-24 | Canon Kabushiki Kaisha | Recording apparatus including a pre-recording positioning function |
US5144503A (en) * | 1985-02-07 | 1992-09-01 | Canon Kabushiki Kaisha | Process for controlling an access position of a recording head which enables recording at each recording position on a recording medium without double recording and a device therefor |
US5317549A (en) * | 1991-04-30 | 1994-05-31 | Sharp Kabushiki Kaisha | Information recording and reproducing apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53149301A (en) * | 1977-06-01 | 1978-12-26 | Matsushita Electric Ind Co Ltd | Optical recorder-reproducer |
-
1978
- 1978-12-28 JP JP16348878A patent/JPS5589921A/ja active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53149301A (en) * | 1977-06-01 | 1978-12-26 | Matsushita Electric Ind Co Ltd | Optical recorder-reproducer |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4819093A (en) * | 1984-10-02 | 1989-04-04 | Fuji Photo Film Co., Ltd. | Rotary magnetic recording-reproducing apparatus with disc track checking |
US4947280A (en) * | 1984-10-02 | 1990-08-07 | Fuji Photo Film Co., Ltd. | Rotary magnetic reproducing apparatus with disc sensing logic |
EP0184195A2 (en) * | 1984-12-06 | 1986-06-11 | Hitachi, Ltd. | Optical disc recording apparatus |
US5144503A (en) * | 1985-02-07 | 1992-09-01 | Canon Kabushiki Kaisha | Process for controlling an access position of a recording head which enables recording at each recording position on a recording medium without double recording and a device therefor |
US5051849A (en) * | 1985-11-28 | 1991-09-24 | Canon Kabushiki Kaisha | Recording apparatus including a pre-recording positioning function |
US4901301A (en) * | 1987-06-18 | 1990-02-13 | Pioneer Electronic Corporation | Region detection system for detecting empty sectors on a recording medium |
JPH01189071A (ja) * | 1988-01-22 | 1989-07-28 | Sharp Corp | 情報記録再生装置 |
US5317549A (en) * | 1991-04-30 | 1994-05-31 | Sharp Kabushiki Kaisha | Information recording and reproducing apparatus |
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