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JPS5740710A - Correction device for time axis of audio signal - Google Patents

Correction device for time axis of audio signal

Info

Publication number
JPS5740710A
JPS5740710A JP11506380A JP11506380A JPS5740710A JP S5740710 A JPS5740710 A JP S5740710A JP 11506380 A JP11506380 A JP 11506380A JP 11506380 A JP11506380 A JP 11506380A JP S5740710 A JPS5740710 A JP S5740710A
Authority
JP
Japan
Prior art keywords
signal
time axis
audio signal
control signal
flutter
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
Application number
JP11506380A
Other languages
Japanese (ja)
Inventor
Masaaki Tamura
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP11506380A priority Critical patent/JPS5740710A/en
Publication of JPS5740710A publication Critical patent/JPS5740710A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • G11B20/225—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions for reducing wow or flutter

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

PURPOSE:To less a wow and flutter without improving the performance of a tape running system, by varying the transfer period of a charge transfer element, which corrects the time axis of a reproduced audio signal, on the basis of the playback control signal of a capstan system. CONSTITUTION:In the reproduction of a magnetic reproducing device, a phase comparator 27 makes a phase comparison between a playback control signal from a control head 23 and a signal obtained by putting the reference signal fa of a reference oscillator 19 in phase by a delay circuit for tracking control and the resulting signal is inputted to an LPF. A signal having a high-frequency component eliminated by the LPF34 varies the oscillation output of a voltage-controlled oscillating circuit 33, whose oscillation output is supplied as clock pulses to a charge transfer element 32. A reproduced audio signal reproduced by an audio head 30 and amplified by an amplifier 31 is inputted to the element, and after its time axis is corrected, the result is sent to an LPF35. Thus, the transfer peiod of the element 32 is varied on the basis of the control signal of a capstan system to correct the time axis securely, thereby lessening a wow and flutter.
JP11506380A 1980-08-21 1980-08-21 Correction device for time axis of audio signal Pending JPS5740710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11506380A JPS5740710A (en) 1980-08-21 1980-08-21 Correction device for time axis of audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11506380A JPS5740710A (en) 1980-08-21 1980-08-21 Correction device for time axis of audio signal

Publications (1)

Publication Number Publication Date
JPS5740710A true JPS5740710A (en) 1982-03-06

Family

ID=14653249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11506380A Pending JPS5740710A (en) 1980-08-21 1980-08-21 Correction device for time axis of audio signal

Country Status (1)

Country Link
JP (1) JPS5740710A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61100900A (en) * 1984-10-22 1986-05-19 日産自動車株式会社 Course guidance unit for vehicle
JPS61100898A (en) * 1984-10-22 1986-05-19 日産自動車株式会社 Course guidance unit for vehicle
JPH06259697A (en) * 1992-02-19 1994-09-16 Haru Kenkyusho:Kk Area information display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61100900A (en) * 1984-10-22 1986-05-19 日産自動車株式会社 Course guidance unit for vehicle
JPS61100898A (en) * 1984-10-22 1986-05-19 日産自動車株式会社 Course guidance unit for vehicle
JPH06259697A (en) * 1992-02-19 1994-09-16 Haru Kenkyusho:Kk Area information display device

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