JPS5552549A - Controller for run speed of magnetic tape - Google Patents
Controller for run speed of magnetic tapeInfo
- Publication number
- JPS5552549A JPS5552549A JP12600178A JP12600178A JPS5552549A JP S5552549 A JPS5552549 A JP S5552549A JP 12600178 A JP12600178 A JP 12600178A JP 12600178 A JP12600178 A JP 12600178A JP S5552549 A JPS5552549 A JP S5552549A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- magnetic tape
- speed control
- control 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
Abstract
PURPOSE: To make it possible to record a speed control signal and sound signal on the same track by recording a sum signal of the speed control signal and sound signal and their difference signal on a magnetic tape and then by reproducing them for controlling the speed of the magnetic tape.
CONSTITUTION: On every arrival of a rectangular pulse signal at input side 11, reference oscillation circuit sends an alternating-current signal of audio frequency range, cycle by cycle, to output side 12. This output is led to plus and minus-side terminals of operational amplifiers 2 and 3 and a sound signal is to the plus-side therminals of amplifiers 2 and 3 via terminal 4. As a result, the sum signal and difference signal of both signals appear at the output sides of amplifiers 2 and 3 and are recorded on magnetic tape 7 through recording heads 8 and 9. Both signals on tape 7 are reproduced by reproducing heads 10 and 11 after time T and led to operational amplifiers 12 and 13. Consequently, amplifier 12 is supplied with the sound signal only and amplifier 13 with the speed control signal only. The speed control signal is inputted to phase comparator circuit 16, where it is phase-compared with the output of oscillation circuit 19, so that a take-up reel will be driven by the output.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12600178A JPS5552549A (en) | 1978-10-12 | 1978-10-12 | Controller for run speed of magnetic tape |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12600178A JPS5552549A (en) | 1978-10-12 | 1978-10-12 | Controller for run speed of magnetic tape |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5552549A true JPS5552549A (en) | 1980-04-17 |
Family
ID=14924260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12600178A Pending JPS5552549A (en) | 1978-10-12 | 1978-10-12 | Controller for run speed of magnetic tape |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5552549A (en) |
-
1978
- 1978-10-12 JP JP12600178A patent/JPS5552549A/en active Pending
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