JPS5456804A - Auto reverse device of tape recorders - Google Patents
Auto reverse device of tape recordersInfo
- Publication number
- JPS5456804A JPS5456804A JP12373177A JP12373177A JPS5456804A JP S5456804 A JPS5456804 A JP S5456804A JP 12373177 A JP12373177 A JP 12373177A JP 12373177 A JP12373177 A JP 12373177A JP S5456804 A JPS5456804 A JP S5456804A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- recording
- tape
- remaining quantity
- output
- 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 perform two-way recording automatically without interruption of recording contents by generating reverse signal according to the mutual relations of the connection time of the minimum level of recording-reproduction signal in a soundless state and tape remaining quantity detection signal.
CONSTITUTION: When the output of a recording signal amplification system 12 becomes a minimum level in a soundless state, the capacitor 26 in which the charge current of the capacitor 26 via detection amplifier 24, diode 25 of a signal level detection part 21 becomes nearly 0 discharges at a specified time constant. When the soundless state continues for a specified time, the output of an inverter 28 inverts. On the other hand, the tape remaining quantity detection part 22 detects the remaining quantity of the magnetic tape from the revolution period of a reel 2 or 3, detects the output signal through the frequency divider 30 of a revolution detector 29 with a period discrimination circuit 31, and opens an AND gate 23. Hence, the auto reverse via auto reverse driving circuit 42 is accomplished only near the tape end irrespective of the no-signal parts, etc. where discontinuation time owing to change of musics is short, whereby the automatic two-way recording free from any interruption on the recording contents is accomplished
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12373177A JPS5456804A (en) | 1977-10-15 | 1977-10-15 | Auto reverse device of tape recorders |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12373177A JPS5456804A (en) | 1977-10-15 | 1977-10-15 | Auto reverse device of tape recorders |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5456804A true JPS5456804A (en) | 1979-05-08 |
JPS6242341B2 JPS6242341B2 (en) | 1987-09-08 |
Family
ID=14867946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12373177A Granted JPS5456804A (en) | 1977-10-15 | 1977-10-15 | Auto reverse device of tape recorders |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5456804A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6020032U (en) * | 1984-05-14 | 1985-02-12 | パイオニア株式会社 | Auto-reverse detection device |
-
1977
- 1977-10-15 JP JP12373177A patent/JPS5456804A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6020032U (en) * | 1984-05-14 | 1985-02-12 | パイオニア株式会社 | Auto-reverse detection device |
JPS6020180Y2 (en) * | 1984-05-14 | 1985-06-17 | パイオニア株式会社 | Auto-reverse detection device |
Also Published As
Publication number | Publication date |
---|---|
JPS6242341B2 (en) | 1987-09-08 |
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