JPS55153107A - Magnetic recording and reproducing device for audio signal - Google Patents

Magnetic recording and reproducing device for audio signal

Info

Publication number
JPS55153107A
JPS55153107A JP5879479A JP5879479A JPS55153107A JP S55153107 A JPS55153107 A JP S55153107A JP 5879479 A JP5879479 A JP 5879479A JP 5879479 A JP5879479 A JP 5879479A JP S55153107 A JPS55153107 A JP S55153107A
Authority
JP
Japan
Prior art keywords
frequency
audio signal
signal
output
component
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
JP5879479A
Other languages
Japanese (ja)
Inventor
Masamitsu Otsu
Hiroshi Taniguchi
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP5879479A priority Critical patent/JPS55153107A/en
Publication of JPS55153107A publication Critical patent/JPS55153107A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To increase the S/N ratio of a low-frequency component by bringing recording and reproduction to effect by converting audio signals into a high-frequency band.
CONSTITUTION: An audio signal input to input terminal 1 is balance-modulated by balanced modulator 2 with a signal of frequency f1 from fixed-frequency oscillator 3 and sum and difference component signals of frequency f1 and frequency fs of the audio signal can be obtained. Those signals are supplied to BPF4 to separate only a component of frequency f1+fs, which is supplied to balanced modulator 5. Modulator 5, supplied with frequency f2 from fixed-frequency oscillator 6, performs balanced modulation and its output is sent to LPF7. As a result, the output of LPF7 is converted into a signal with the audio signal increased by frequency f1-f2. This signal is recorded on a magnetic tape. In reproduction, the audio signal is output to output terminal 17 through the reverse operation. The high-frequency range conversion like this can improve the S/N of a low frequency component remarkably even when a recording medium of a thin coating is used.
COPYRIGHT: (C)1980,JPO&Japio
JP5879479A 1979-05-14 1979-05-14 Magnetic recording and reproducing device for audio signal Pending JPS55153107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5879479A JPS55153107A (en) 1979-05-14 1979-05-14 Magnetic recording and reproducing device for audio signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5879479A JPS55153107A (en) 1979-05-14 1979-05-14 Magnetic recording and reproducing device for audio signal

Publications (1)

Publication Number Publication Date
JPS55153107A true JPS55153107A (en) 1980-11-28

Family

ID=13094475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5879479A Pending JPS55153107A (en) 1979-05-14 1979-05-14 Magnetic recording and reproducing device for audio signal

Country Status (1)

Country Link
JP (1) JPS55153107A (en)

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