JPS5467410A - Recorded signal reproduczng system - Google Patents
Recorded signal reproduczng systemInfo
- Publication number
- JPS5467410A JPS5467410A JP13495977A JP13495977A JPS5467410A JP S5467410 A JPS5467410 A JP S5467410A JP 13495977 A JP13495977 A JP 13495977A JP 13495977 A JP13495977 A JP 13495977A JP S5467410 A JPS5467410 A JP S5467410A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- trailing
- reproduction
- delayed
- recorded
- 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
Landscapes
- Signal Processing For Digital Recording And Reproducing (AREA)
- Control Of Amplification And Gain Control (AREA)
Abstract
PURPOSE: To prevent generation of unnatural noises due to abrupt changes in levels by gradually decreasing and increasing the amplitudes of output signals at the trailing and leading ends of recorded signals.
CONSTITUTION: A synchronous separating circuit 1 generates clock pulses in synchronism with the control signals Cs from a track. When the signals CS cannot be detected, control signals AVS are impressed upon output amplitude control signals 10 and 11 so that outputs E0 and E'0 are gradually decreased in accordance with gain control characteristics AV. Since the time when the stop of the signals CS can be detected takes place at tE' about 1 sec later the trailing end tE of the data, the reproduction signals are delayed a time n.tE by a delay circuit 5 so that the output amplitude of the reproduction signals can be gradually decreased by the circuits 10 and 11 before the delayed reproduction signals EDD reach their trailing ends. Thus, it is possible to eliminate the uncomfortable noises due to the abrupt reduction in the signal levels at the trailing end of the recorded signals.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13495977A JPS5467410A (en) | 1977-11-09 | 1977-11-09 | Recorded signal reproduczng system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13495977A JPS5467410A (en) | 1977-11-09 | 1977-11-09 | Recorded signal reproduczng system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5467410A true JPS5467410A (en) | 1979-05-30 |
Family
ID=15140568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13495977A Pending JPS5467410A (en) | 1977-11-09 | 1977-11-09 | Recorded signal reproduczng system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5467410A (en) |
-
1977
- 1977-11-09 JP JP13495977A patent/JPS5467410A/en active Pending
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