JPS55104153A - Suppressor for pulsive noise - Google Patents
Suppressor for pulsive noiseInfo
- Publication number
- JPS55104153A JPS55104153A JP1167179A JP1167179A JPS55104153A JP S55104153 A JPS55104153 A JP S55104153A JP 1167179 A JP1167179 A JP 1167179A JP 1167179 A JP1167179 A JP 1167179A JP S55104153 A JPS55104153 A JP S55104153A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- noise
- switch
- delay circuit
- circuit
- 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 enable to perform accurate interpolation, by synthesizing the interpolation signal from the signal advanced and delayed of the time phase for an integer multiple of the pilot signal period while pulsive noise is superimposed on the stereo composite signal.
CONSTITUTION: The input signal from the FM detection circuit is fed to the noise detection circuit 2 via the high pass filter 1 and noise is detected. This detection signal drives the monostable multivibrator 3 and the signal to drive the switches 6 and 10 is formed with the delay circuit 4 and the gate 12. Immediately before the noise pulse is fed to the switch 6 from the first delay circuit 7 with the switch 6, the selection is made to the output of the second delay circuit 8 to avoid the noise pulse. Further, the switch 10 selects the sum circuit 9 and the switch 6 for the output, and the waveform interpolation during the suppression of pulsive noise performs noise suppression at the average signal between the delayed signal and advanced signal for the phase in MTP from the signal suppressed. Where M is an integer and TP is the pilot signal period in the stereo composite signal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1167179A JPS5946458B2 (en) | 1979-02-02 | 1979-02-02 | Pulse noise suppression device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1167179A JPS5946458B2 (en) | 1979-02-02 | 1979-02-02 | Pulse noise suppression device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55104153A true JPS55104153A (en) | 1980-08-09 |
JPS5946458B2 JPS5946458B2 (en) | 1984-11-13 |
Family
ID=11784440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1167179A Expired JPS5946458B2 (en) | 1979-02-02 | 1979-02-02 | Pulse noise suppression device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946458B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS622294U (en) * | 1985-06-19 | 1987-01-08 |
-
1979
- 1979-02-02 JP JP1167179A patent/JPS5946458B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5946458B2 (en) | 1984-11-13 |
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