JPS55105764A - Input and output unit for magnetic tape recording and reproducing unit - Google Patents
Input and output unit for magnetic tape recording and reproducing unitInfo
- Publication number
- JPS55105764A JPS55105764A JP1225179A JP1225179A JPS55105764A JP S55105764 A JPS55105764 A JP S55105764A JP 1225179 A JP1225179 A JP 1225179A JP 1225179 A JP1225179 A JP 1225179A JP S55105764 A JPS55105764 A JP S55105764A
- Authority
- JP
- Japan
- Prior art keywords
- tape recorder
- systems
- input
- magnetic tape
- signal
- 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE: To avoid the running state of undesired tape recorder against the interference due to program runaway and noise, by stopping the both systems without fail at the abnormal state in which the two systems are run at the same time.
CONSTITUTION: The first system tape recorder connected to the terminal board 10 and the second system tape recorder connected to the terminal board 14 are avoided for simultaneous operation. In recording signal to a tape recorder, the FSK oscillation circuit 20 is fed to the signal output terminals 11 and 15 via the signal path 200 and recording is made only for the recorder in running state. Conversely, only one of the signals incoming from the signal input terminals 12 and 16 is fed to the FSK demodulation circuit 21, since the contact of the relay 27 and that of the relay 28 are exclusively connected each other. Further, due to some causes, if the outputs of the FF circuits 22 and 23 are both present, the NAND circuit 26 detects it and the running of the both systems can be stopped.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1225179A JPS55105764A (en) | 1979-02-07 | 1979-02-07 | Input and output unit for magnetic tape recording and reproducing unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1225179A JPS55105764A (en) | 1979-02-07 | 1979-02-07 | Input and output unit for magnetic tape recording and reproducing unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55105764A true JPS55105764A (en) | 1980-08-13 |
Family
ID=11800136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1225179A Pending JPS55105764A (en) | 1979-02-07 | 1979-02-07 | Input and output unit for magnetic tape recording and reproducing unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55105764A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02306453A (en) * | 1989-05-19 | 1990-12-19 | Fujitsu Ltd | Tape cut preventing system |
-
1979
- 1979-02-07 JP JP1225179A patent/JPS55105764A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02306453A (en) * | 1989-05-19 | 1990-12-19 | Fujitsu Ltd | Tape cut preventing system |
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