JPS5730107A - Noise eliminator for recording tape - Google Patents

Noise eliminator for recording tape

Info

Publication number
JPS5730107A
JPS5730107A JP10354080A JP10354080A JPS5730107A JP S5730107 A JPS5730107 A JP S5730107A JP 10354080 A JP10354080 A JP 10354080A JP 10354080 A JP10354080 A JP 10354080A JP S5730107 A JPS5730107 A JP S5730107A
Authority
JP
Japan
Prior art keywords
track
signal
wow
reproduced
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.)
Granted
Application number
JP10354080A
Other languages
Japanese (ja)
Other versions
JPS6123589B2 (en
Inventor
Toshiyuki Katagiri
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon 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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP10354080A priority Critical patent/JPS5730107A/en
Publication of JPS5730107A publication Critical patent/JPS5730107A/en
Publication of JPS6123589B2 publication Critical patent/JPS6123589B2/ja
Granted 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

Abstract

PURPOSE:To eliminate wow and flutter components by recording a frequency- modulated signal on the 1st track of a magnetic tape and a carrier on the 2nd track and by obtaining the difference between both demodulated signals when they are reproduced. CONSTITUTION:An audio signal S1 is modulated by a frequency modulator 20 with a carrier S0 from an oscillator 10 and recorded on the 1st track. The oscillator output S0, on the other hand, is recorded on the 2nd track as it is. In reproduction, a reproduced signal from the 1st track is demodulated by a frequency demodulator 40 and that from the 2nd track is demodulated by a frequency demodulator 50. Both the reproduced signals are supplied to an operator 60 to find their difference and an output signal S7 is outputted. When a noise is generated owing to a wow and flutter during recording or reproduction, only the wow and flutter component is detected in the reproduced signal of the 2nd track, so the output signal S7 equals the said audio signal S1 from which the wow and flutter component has been removed.
JP10354080A 1980-07-30 1980-07-30 Noise eliminator for recording tape Granted JPS5730107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10354080A JPS5730107A (en) 1980-07-30 1980-07-30 Noise eliminator for recording tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10354080A JPS5730107A (en) 1980-07-30 1980-07-30 Noise eliminator for recording tape

Publications (2)

Publication Number Publication Date
JPS5730107A true JPS5730107A (en) 1982-02-18
JPS6123589B2 JPS6123589B2 (en) 1986-06-06

Family

ID=14356669

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10354080A Granted JPS5730107A (en) 1980-07-30 1980-07-30 Noise eliminator for recording tape

Country Status (1)

Country Link
JP (1) JPS5730107A (en)

Also Published As

Publication number Publication date
JPS6123589B2 (en) 1986-06-06

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