JPS5245902A - Abnormal sound detecting system for reproducing device of multichannel records - Google Patents
Abnormal sound detecting system for reproducing device of multichannel recordsInfo
- Publication number
- JPS5245902A JPS5245902A JP50121567A JP12156775A JPS5245902A JP S5245902 A JPS5245902 A JP S5245902A JP 50121567 A JP50121567 A JP 50121567A JP 12156775 A JP12156775 A JP 12156775A JP S5245902 A JPS5245902 A JP S5245902A
- Authority
- JP
- Japan
- Prior art keywords
- abnormal sound
- detecting system
- multichannel
- records
- sound detecting
- 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
- Stereophonic System (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
PURPOSE: To provide an abnormal sound detecting system of the type, in which the phase comparison is carried out with the output signals of an oscillator by a phase-locked loop circuit of wide and narrow ranges during reproduction and demodulation of the recorded signals, in which both direct waves and waves to be angularly modulated are multiplexed, so that the abnormal sound may be correctly detected.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50121567A JPS5934038B2 (en) | 1975-10-08 | 1975-10-08 | Abnormal sound detection method in multi-channel record playback equipment |
US05/725,569 US4096360A (en) | 1975-09-27 | 1976-09-22 | Multichannel record disc reproducing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50121567A JPS5934038B2 (en) | 1975-10-08 | 1975-10-08 | Abnormal sound detection method in multi-channel record playback equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5245902A true JPS5245902A (en) | 1977-04-12 |
JPS5934038B2 JPS5934038B2 (en) | 1984-08-20 |
Family
ID=14814419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50121567A Expired JPS5934038B2 (en) | 1975-09-27 | 1975-10-08 | Abnormal sound detection method in multi-channel record playback equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5934038B2 (en) |
-
1975
- 1975-10-08 JP JP50121567A patent/JPS5934038B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5934038B2 (en) | 1984-08-20 |
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