JPS54137219A - Record/reproduction system for information signal - Google Patents
Record/reproduction system for information signalInfo
- Publication number
- JPS54137219A JPS54137219A JP4379678A JP4379678A JPS54137219A JP S54137219 A JPS54137219 A JP S54137219A JP 4379678 A JP4379678 A JP 4379678A JP 4379678 A JP4379678 A JP 4379678A JP S54137219 A JPS54137219 A JP S54137219A
- Authority
- JP
- Japan
- Prior art keywords
- modulator
- signal
- output
- record
- reproduction
- 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
Abstract
PURPOSE: To realize the simultaneous recording of two programs as well as the record and reproduction of both the normal TV signal and the still picture by recording the information signals such as the TV signals or the like simultaneously into the different tracks via the different signal processes.
CONSTITUTION: The beam given from laser beam source 1 passes through half- mirror 2 and enters modulator 4 via reflector 3 to be then supplied to prism 9 the intensity of which is modulated by the FM wave obtained by modulating the signal of signal source 12 through FM modulator 6. The beam reflected at mirror 2 enters prism 9 underwent the intensity modulation by the output of FM modulator 7 through modulator 7. The two output are reflected by reflector 10 to be recorded via lens 11 on photo resist of original disk Da with shift of 1 track to each other. Also, the plural fields are recorded in a turn of disk Da, and the reproduction is carried out by selecting one of the two output.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4379678A JPS54137219A (en) | 1978-04-15 | 1978-04-15 | Record/reproduction system for information signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4379678A JPS54137219A (en) | 1978-04-15 | 1978-04-15 | Record/reproduction system for information signal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54137219A true JPS54137219A (en) | 1979-10-24 |
Family
ID=12673699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4379678A Pending JPS54137219A (en) | 1978-04-15 | 1978-04-15 | Record/reproduction system for information signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54137219A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0051285A2 (en) * | 1980-10-31 | 1982-05-12 | Discovision Associates | Method and apparatus for recording and playing back continuous-play video signals together with stop-motion video and audio signals |
-
1978
- 1978-04-15 JP JP4379678A patent/JPS54137219A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0051285A2 (en) * | 1980-10-31 | 1982-05-12 | Discovision Associates | Method and apparatus for recording and playing back continuous-play video signals together with stop-motion video and audio signals |
US4463389A (en) * | 1980-10-31 | 1984-07-31 | Discovision Associates | System for recording and playing back continuous-play and stop-motion signals |
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