JPS5245902A - Abnormal sound detecting system for reproducing device of multichannel records - Google Patents

Abnormal sound detecting system for reproducing device of multichannel records

Info

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
Application number
JP50121567A
Other languages
Japanese (ja)
Other versions
JPS5934038B2 (en
Inventor
Fujio Suzuki
Nobuaki Takahashi
Katsuhiro Oba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP50121567A priority Critical patent/JPS5934038B2/en
Priority to US05/725,569 priority patent/US4096360A/en
Publication of JPS5245902A publication Critical patent/JPS5245902A/en
Publication of JPS5934038B2 publication Critical patent/JPS5934038B2/en
Expired legal-status Critical Current

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
JP50121567A 1975-09-27 1975-10-08 Abnormal sound detection method in multi-channel record playback equipment Expired JPS5934038B2 (en)

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)

Also Published As

Publication number Publication date
JPS5934038B2 (en) 1984-08-20

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