JPS5690443A - Automatic speed switching device of tape recorder - Google Patents
Automatic speed switching device of tape recorderInfo
- Publication number
- JPS5690443A JPS5690443A JP16584779A JP16584779A JPS5690443A JP S5690443 A JPS5690443 A JP S5690443A JP 16584779 A JP16584779 A JP 16584779A JP 16584779 A JP16584779 A JP 16584779A JP S5690443 A JPS5690443 A JP S5690443A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- tape
- recording
- reproducing
- 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 switch automatically the tape speed and the reproducing equalizer, by recording the automatic switching signal of a fixed frequency onto the tape at the recording time and by detecting this signal to switch the revolving speed of the tape driving motor at the reproducing time.
CONSTITUTION: At the recording time, switches S1 and S2 are connected to contact M and a desired speed respectively, and the sound recording signal is recorded after the automatic switching signal is recorded by the operation of switch S3. At the reproducing time, when switches S1 and S4 are switched to automatic side (A), transistor Q2 of the bistable multivibrator is nonconductive, and automatic switching detecting circuit 11 is held in the tape speed (v) side. For reproducing of the tape of recording speed 2v, the tape is reproduced in speed (v), and detecting circuits D1 and D2 are operated, and transistor Q2 becomes conductive, and the circuit is switched to the speed 2v side. If the tape of speed (v) is reproduced in speed 2v, the switching signal is generated by filters LF1 and LF2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16584779A JPS5690443A (en) | 1979-12-19 | 1979-12-19 | Automatic speed switching device of tape recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16584779A JPS5690443A (en) | 1979-12-19 | 1979-12-19 | Automatic speed switching device of tape recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5690443A true JPS5690443A (en) | 1981-07-22 |
Family
ID=15820123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16584779A Pending JPS5690443A (en) | 1979-12-19 | 1979-12-19 | Automatic speed switching device of tape recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5690443A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61951A (en) * | 1984-06-13 | 1986-01-06 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
-
1979
- 1979-12-19 JP JP16584779A patent/JPS5690443A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61951A (en) * | 1984-06-13 | 1986-01-06 | Matsushita Electric Ind Co Ltd | Magnetic recording and reproducing device |
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