JPS57172558A - Magnetic recording and reproducing device - Google Patents
Magnetic recording and reproducing deviceInfo
- Publication number
- JPS57172558A JPS57172558A JP56056964A JP5696481A JPS57172558A JP S57172558 A JPS57172558 A JP S57172558A JP 56056964 A JP56056964 A JP 56056964A JP 5696481 A JP5696481 A JP 5696481A JP S57172558 A JPS57172558 A JP S57172558A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- intermusic
- signal
- quick
- supplied
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
- G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
- G11B27/22—Means responsive to presence or absence of recorded information signals
Abstract
PURPOSE:To enable automatic program searching operation, etc., by providing a means for generating a compensation signal for cancelling an intermusic signal detected at a quick reversing point in response to a quick-reversing-point detection signal. CONSTITUTION:A quick-reversing-point detecting means B consists of a light emitting diode 1, a light emitting diode 2, an amplifier 3, and a waveform shaping circuit 4, and its detection output is supplied to a control circuit 11. An intermusic signal detecting means C consists of an intermusic detecting circuit 7 connected to a magnetic head 12, a differentiating circuit 9, and a monostable multivibrator circuit 10, and its detection output is supplied to the control circuit 11. A compensation signal generating means D consists of a differentiating circuit 5, a monostable multivibrator circuit 6, and an OR circuit 8, and the output of the monostable multivibrator circuit 6 and that of the intermusic detecting circuit 7 are supplied to said OR circuit, whose output terminal is connected to the differentiating circuit 9. In response to the detection output from the intermusic signal detecting means C, the control circuit 11 performs prescribed automatic program searching operation, etc.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56056964A JPS57172558A (en) | 1981-04-17 | 1981-04-17 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56056964A JPS57172558A (en) | 1981-04-17 | 1981-04-17 | Magnetic recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57172558A true JPS57172558A (en) | 1982-10-23 |
JPH0121545B2 JPH0121545B2 (en) | 1989-04-21 |
Family
ID=13042209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56056964A Granted JPS57172558A (en) | 1981-04-17 | 1981-04-17 | Magnetic recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57172558A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6151683A (en) * | 1984-08-20 | 1986-03-14 | Pioneer Electronic Corp | Automatic music selecting device of tape player |
JPS6157327U (en) * | 1984-09-20 | 1986-04-17 |
-
1981
- 1981-04-17 JP JP56056964A patent/JPS57172558A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6151683A (en) * | 1984-08-20 | 1986-03-14 | Pioneer Electronic Corp | Automatic music selecting device of tape player |
JPS6157327U (en) * | 1984-09-20 | 1986-04-17 |
Also Published As
Publication number | Publication date |
---|---|
JPH0121545B2 (en) | 1989-04-21 |
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