JPS5593389A - Magnetic recording and reproduction unit - Google Patents
Magnetic recording and reproduction unitInfo
- Publication number
- JPS5593389A JPS5593389A JP206179A JP206179A JPS5593389A JP S5593389 A JPS5593389 A JP S5593389A JP 206179 A JP206179 A JP 206179A JP 206179 A JP206179 A JP 206179A JP S5593389 A JPS5593389 A JP S5593389A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- frequency
- recorded
- oscillation source
- 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.)
- Granted
Links
Abstract
PURPOSE: To constitute correct picture for the picture reproduced according to TV system, by providing the circuit which automatically discriminates various TV systems from the control signal and input signal recorded.
CONSTITUTION: The frequency of the first tape speed VP from the first oscillation source 1a of the reference oscillator 1 and that of the second tape speed VN from the second oscillation source 1b are fed to the tape speed control circuit 2 to control the servo system and the control signal from the oscillator 1 is fed to the comparator 5. Further, the control signal recorded on the tape is fed to the comparator 5, the frequency of the oscillator 1 and that of the control signal are compared at the comparator 5, and the signal of the color signal input 7 is selected at the gate circuit 6 depending on the result of comparison to discriminate the TV systems. When the frequency of the oscillation source 1a is reproduced in the speed VP, it is set lower than the frequency recorded in the speed VP and set higher than the frequency recorded in the speed VN. Further, when the frequency of the oscillation source 1b is reproduced at the speed VN, it is set lower than the frequency recorded in the speed VP and set higher than that recorded in the speed VN.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54002061A JPS6053997B2 (en) | 1979-01-10 | 1979-01-10 | magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54002061A JPS6053997B2 (en) | 1979-01-10 | 1979-01-10 | magnetic recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5593389A true JPS5593389A (en) | 1980-07-15 |
JPS6053997B2 JPS6053997B2 (en) | 1985-11-28 |
Family
ID=11518818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54002061A Expired JPS6053997B2 (en) | 1979-01-10 | 1979-01-10 | magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6053997B2 (en) |
-
1979
- 1979-01-10 JP JP54002061A patent/JPS6053997B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6053997B2 (en) | 1985-11-28 |
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