JPS5764342A - Optical system recorder and reproducer - Google Patents
Optical system recorder and reproducerInfo
- Publication number
- JPS5764342A JPS5764342A JP14098280A JP14098280A JPS5764342A JP S5764342 A JPS5764342 A JP S5764342A JP 14098280 A JP14098280 A JP 14098280A JP 14098280 A JP14098280 A JP 14098280A JP S5764342 A JPS5764342 A JP S5764342A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- information signal
- recording
- shifter
- moves
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/02—Control of operating function, e.g. switching from recording to reproducing
- G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
PURPOSE:To prevent double recording to a recorded part, by quickly forwarding an optical system or stopping it by an output of an information signal detector connected to a photodetector. CONSTITUTION:When a recording ready switch is turned on, a shifter 9 moves an optical system 7 at a high speed in the opposite direction of an arrow A up to a recording start point of a disk 5. The optical system 7 moves to the start point of recording, and in case when an information signal detector 11 still detects an information signal, the shifter 9 moves the optical system at a high speed in the direction as indicated with the arrow A until it comes not to detect the signal. When the information signal detector 11 comes not to detect the information signal, the shifter 9 stops its operation, and the device becomes a recording available state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14098280A JPS5764342A (en) | 1980-10-07 | 1980-10-07 | Optical system recorder and reproducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14098280A JPS5764342A (en) | 1980-10-07 | 1980-10-07 | Optical system recorder and reproducer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5764342A true JPS5764342A (en) | 1982-04-19 |
Family
ID=15281369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14098280A Pending JPS5764342A (en) | 1980-10-07 | 1980-10-07 | Optical system recorder and reproducer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5764342A (en) |
Cited By (5)
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 |
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 |
US6061090A (en) * | 1985-10-30 | 2000-05-09 | Canon Kabushiki Kaisha | Recording and/or reproducing apparatus |
-
1980
- 1980-10-07 JP JP14098280A patent/JPS5764342A/en active Pending
Cited By (5)
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 |
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 |
US6061090A (en) * | 1985-10-30 | 2000-05-09 | Canon Kabushiki Kaisha | Recording and/or reproducing apparatus |
US5051849A (en) * | 1985-11-28 | 1991-09-24 | Canon Kabushiki Kaisha | Recording apparatus including a pre-recording positioning function |
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