JPS5654606A - Generating device of muting signal - Google Patents
Generating device of muting signalInfo
- Publication number
- JPS5654606A JPS5654606A JP12861779A JP12861779A JPS5654606A JP S5654606 A JPS5654606 A JP S5654606A JP 12861779 A JP12861779 A JP 12861779A JP 12861779 A JP12861779 A JP 12861779A JP S5654606 A JPS5654606 A JP S5654606A
- Authority
- JP
- Japan
- Prior art keywords
- velocity
- tape
- switch
- transistor
- muting 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
Landscapes
- Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
- Amplifiers (AREA)
Abstract
PURPOSE: To prevent the occurrence of the harmful distortion sound when the velocity of the tape is switched, by generating the muting signal through the control given to the switching transistor via the timing switch which interlocks the tape velocity switch.
CONSTITUTION: A temporary short circuit is given between the terminals (a) and (b) of the timing switch 21 interlocking the tape velocity switch and simultaneously with the switching of the tape velocity. And thus a conduction is secured to the switching transistor 8 the malfunction of which is prevented by the parallel resistance 18 and the diode 19 pulse via the DC power source 6. And this conduction of the transistor 8 is continued for a fixed time by the multiplex voltage of the capacitors 13 and 16 in the serial circuits 12 and 15. As a result, the muting signal is generated from the collector of the cntrol transistor 7, and thus the harmful distortion sound produced at the switcing of the tape velocity is never applied to the main amplifier. Thus the occurrence of the harmful distortion sound can be prevented until the velocity of the tape becomes steady.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12861779A JPS5654606A (en) | 1979-10-05 | 1979-10-05 | Generating device of muting signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12861779A JPS5654606A (en) | 1979-10-05 | 1979-10-05 | Generating device of muting signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5654606A true JPS5654606A (en) | 1981-05-14 |
JPS6221162B2 JPS6221162B2 (en) | 1987-05-11 |
Family
ID=14989208
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12861779A Granted JPS5654606A (en) | 1979-10-05 | 1979-10-05 | Generating device of muting signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5654606A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0557051U (en) * | 1991-12-28 | 1993-07-30 | 株式会社タダノ | Remote control valve locking device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52137823U (en) * | 1976-04-14 | 1977-10-19 | ||
JPS53166616U (en) * | 1977-06-02 | 1978-12-27 |
-
1979
- 1979-10-05 JP JP12861779A patent/JPS5654606A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52137823U (en) * | 1976-04-14 | 1977-10-19 | ||
JPS53166616U (en) * | 1977-06-02 | 1978-12-27 |
Also Published As
Publication number | Publication date |
---|---|
JPS6221162B2 (en) | 1987-05-11 |
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