JPS6420767A - Voice switch device - Google Patents

Voice switch device

Info

Publication number
JPS6420767A
JPS6420767A JP62177422A JP17742287A JPS6420767A JP S6420767 A JPS6420767 A JP S6420767A JP 62177422 A JP62177422 A JP 62177422A JP 17742287 A JP17742287 A JP 17742287A JP S6420767 A JPS6420767 A JP S6420767A
Authority
JP
Japan
Prior art keywords
circuit
input signal
voice detection
detection circuit
switching
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
JP62177422A
Other languages
Japanese (ja)
Inventor
Ryoji Suzuki
Masayuki Misaki
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 JP62177422A priority Critical patent/JPS6420767A/en
Publication of JPS6420767A publication Critical patent/JPS6420767A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To increase the suppressing sense of noise with less speech head and speech tail cutoff by providing a filter circuit subjected to insertion and deinsertion control by a voice detection circuit and a switching citcuit. CONSTITUTION:A voice detection circuit 11 detecting the presence of a voice from an input signal, a filter circuit 12 providing the frequency characteristic to the input signal and a switching citcuit 13 outputting an input signal when the voice detection circuit 11 decides it to be sound and outputting an output signal of the filter circuit 12 when the circuit 11 decides to be silent are provided. Thus, when the voice detection circuit 11 detects the silence period of the input signal, the switching circuit 13 applies control to output the output signal of the filter circuit 12, then speech head and tail cutoff is less and the noise suppressing effect is large.
JP62177422A 1987-07-16 1987-07-16 Voice switch device Pending JPS6420767A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62177422A JPS6420767A (en) 1987-07-16 1987-07-16 Voice switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62177422A JPS6420767A (en) 1987-07-16 1987-07-16 Voice switch device

Publications (1)

Publication Number Publication Date
JPS6420767A true JPS6420767A (en) 1989-01-24

Family

ID=16030651

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62177422A Pending JPS6420767A (en) 1987-07-16 1987-07-16 Voice switch device

Country Status (1)

Country Link
JP (1) JPS6420767A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034871A (en) * 1989-03-28 1991-07-23 Matsushita Electric Works, Ltd. DC to DC converter with steady control of output DC voltage by monitoring output DC current
US5323457A (en) * 1991-01-18 1994-06-21 Nec Corporation Circuit for suppressing white noise in received voice
EP0615397A2 (en) * 1993-03-11 1994-09-14 Nec Corporation Noise suppression circuit for radio transceiver microphone
US5559880A (en) * 1993-01-19 1996-09-24 Mitsubishi Denki Kabushiki Kaisha Circuit for hands free talking
JP2007006410A (en) * 2005-06-27 2007-01-11 Matsushita Electric Works Ltd Interphone system for multiple dwelling house
JP2009182594A (en) * 2008-01-30 2009-08-13 Aiphone Co Ltd Intercom system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5034871A (en) * 1989-03-28 1991-07-23 Matsushita Electric Works, Ltd. DC to DC converter with steady control of output DC voltage by monitoring output DC current
US5323457A (en) * 1991-01-18 1994-06-21 Nec Corporation Circuit for suppressing white noise in received voice
US5559880A (en) * 1993-01-19 1996-09-24 Mitsubishi Denki Kabushiki Kaisha Circuit for hands free talking
EP0615397A2 (en) * 1993-03-11 1994-09-14 Nec Corporation Noise suppression circuit for radio transceiver microphone
EP0615397A3 (en) * 1993-03-11 1994-10-19 Nec Corp Noise suppression circuit for radio transceiver microphone.
JP2007006410A (en) * 2005-06-27 2007-01-11 Matsushita Electric Works Ltd Interphone system for multiple dwelling house
JP2009182594A (en) * 2008-01-30 2009-08-13 Aiphone Co Ltd Intercom system

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