JPS57175000A - Stereophonic reproducing device - Google Patents

Stereophonic reproducing device

Info

Publication number
JPS57175000A
JPS57175000A JP56060029A JP6002981A JPS57175000A JP S57175000 A JPS57175000 A JP S57175000A JP 56060029 A JP56060029 A JP 56060029A JP 6002981 A JP6002981 A JP 6002981A JP S57175000 A JPS57175000 A JP S57175000A
Authority
JP
Japan
Prior art keywords
signal
low
phase
speaker
frequency 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
JP56060029A
Other languages
Japanese (ja)
Inventor
Yasuhiro Ishizaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56060029A priority Critical patent/JPS57175000A/en
Publication of JPS57175000A publication Critical patent/JPS57175000A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic

Abstract

PURPOSE:To reproduce the composite low-frequency component of a left and a right channel signal without providing a center channel, by providing a phase rotating circuit to an input circuit for electric power amplification of one channel. CONSTITUTION:A signal from the signal source 1 of a left amplifier L is rotated by a low-frequency phase rotating circuit 51 until only the low-frequency component becomes out of phase, and then outputted. Further, a signal from the signal source 11 of a right amplifier R is outputted while in phase with the input signal. Those outputs drive a left speaker 23 and a right speaker 43 through high-pass filters. Although signals are supplied to a speaker 34 of a center channel from power amplifiers 3 and 13 through low-pass filters, only the out-of- phase component from the power amplifier 3 flows as an output current. Therefore, the speaker 34 reproduce the signal of the low frequency component.
JP56060029A 1981-04-21 1981-04-21 Stereophonic reproducing device Pending JPS57175000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56060029A JPS57175000A (en) 1981-04-21 1981-04-21 Stereophonic reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56060029A JPS57175000A (en) 1981-04-21 1981-04-21 Stereophonic reproducing device

Publications (1)

Publication Number Publication Date
JPS57175000A true JPS57175000A (en) 1982-10-27

Family

ID=13130228

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56060029A Pending JPS57175000A (en) 1981-04-21 1981-04-21 Stereophonic reproducing device

Country Status (1)

Country Link
JP (1) JPS57175000A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547522U (en) * 1991-11-25 1993-06-25 大一螺子工業株式会社 nut

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0547522U (en) * 1991-11-25 1993-06-25 大一螺子工業株式会社 nut

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