JPS588285U - Sound field expansion circuit for stereo sound equipment - Google Patents

Sound field expansion circuit for stereo sound equipment

Info

Publication number
JPS588285U
JPS588285U JP10225681U JP10225681U JPS588285U JP S588285 U JPS588285 U JP S588285U JP 10225681 U JP10225681 U JP 10225681U JP 10225681 U JP10225681 U JP 10225681U JP S588285 U JPS588285 U JP S588285U
Authority
JP
Japan
Prior art keywords
amplifier circuit
input terminal
signal
circuit
input
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
JP10225681U
Other languages
Japanese (ja)
Inventor
河内　恒佳
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP10225681U priority Critical patent/JPS588285U/en
Publication of JPS588285U publication Critical patent/JPS588285U/en
Pending legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来例、第２図は本考案の音場拡大回路の一実
施例である。 主な図番の説明、１１・・・第１入力端子、１２・・・
第２入力端子、１３・・・第１増幅回路、１４．１６負
帰還回路、１５・・・第２増幅回路、１９・・・差動増
幅回路。FIG. 1 shows a conventional example, and FIG. 2 shows an embodiment of the sound field expansion circuit of the present invention. Explanation of main drawing numbers, 11...1st input terminal, 12...
2nd input terminal, 13... first amplifier circuit, 14.16 negative feedback circuit, 15... second amplifier circuit, 19... differential amplifier circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 左右のチャンネルを有するステレオ式音響装置において
、左右のチャンネル信号が夫々印加される第１及び第２
の入力端子と、該第１の入力端子に印加された左チャン
ネルの信号が入力されると共に該信号を増幅する第１増
幅回路と、前記第２の入力端子に印加された右チャンネ
ルの信号かみ力されると共に該信号を増幅する第２増幅
回路と、前記第１及び第２の入力端子からの左右の信号
が入力されると共に該左右の信号の同相成分をキャンセ
ルした信号を出力する差動増幅回路とより成り、該差動
増幅回路の出力信号を前記第１入力端子より入力される
信号と共に前記第１増幅回路の入力端子に印加せしめ、
また該差動増幅回路の出力信号を前記第２増幅回路の負
帰還回路に印加せしめるようにしたことを特徴とするス
テレオ式音響装置の音場拡大回路。In a stereo sound device having left and right channels, first and second channels to which left and right channel signals are applied, respectively, are used.
an input terminal, a first amplifier circuit to which a left channel signal applied to the first input terminal is input and amplifies the signal, and a right channel signal applied to the second input terminal. a second amplification circuit that receives the left and right signals from the first and second input terminals and outputs a signal in which the in-phase components of the left and right signals are canceled; an amplifier circuit, applying the output signal of the differential amplifier circuit to the input terminal of the first amplifier circuit together with the signal input from the first input terminal;
Also, a sound field expansion circuit for a stereo acoustic device, characterized in that the output signal of the differential amplifier circuit is applied to a negative feedback circuit of the second amplifier circuit.
JP10225681U 1981-07-08 1981-07-08 Sound field expansion circuit for stereo sound equipment Pending JPS588285U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10225681U JPS588285U (en) 1981-07-08 1981-07-08 Sound field expansion circuit for stereo sound equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10225681U JPS588285U (en) 1981-07-08 1981-07-08 Sound field expansion circuit for stereo sound equipment

Publications (1)

Publication Number Publication Date
JPS588285U true JPS588285U (en) 1983-01-19

Family

ID=29896904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10225681U Pending JPS588285U (en) 1981-07-08 1981-07-08 Sound field expansion circuit for stereo sound equipment

Country Status (1)

Country Link
JP (1) JPS588285U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187500A (en) * 1985-02-15 1986-08-21 Pioneer Electronic Corp Sound field enlarging circuit for stereo reproducing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187500A (en) * 1985-02-15 1986-08-21 Pioneer Electronic Corp Sound field enlarging circuit for stereo reproducing

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