JPS5392607A - Voice switch circuit - Google Patents

Voice switch circuit

Info

Publication number
JPS5392607A
JPS5392607A JP694777A JP694777A JPS5392607A JP S5392607 A JPS5392607 A JP S5392607A JP 694777 A JP694777 A JP 694777A JP 694777 A JP694777 A JP 694777A JP S5392607 A JPS5392607 A JP S5392607A
Authority
JP
Japan
Prior art keywords
switch circuit
voice switch
speech
naturalness
talking
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
JP694777A
Other languages
Japanese (ja)
Other versions
JPS5551381B2 (en
Inventor
Kunihiro Kato
Masakazu Nishino
Harumitsu Saito
Ryoichi Okayasu
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP694777A priority Critical patent/JPS5392607A/en
Publication of JPS5392607A publication Critical patent/JPS5392607A/en
Publication of JPS5551381B2 publication Critical patent/JPS5551381B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)

Abstract

PURPOSE:To improve a naturalness of talking with reducing the cutting-off of a speech head and tail by controlling the time constant of a hang-over circuit while discriminating a transmission speech and receiving speech.
JP694777A 1977-01-25 1977-01-25 Voice switch circuit Granted JPS5392607A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP694777A JPS5392607A (en) 1977-01-25 1977-01-25 Voice switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP694777A JPS5392607A (en) 1977-01-25 1977-01-25 Voice switch circuit

Publications (2)

Publication Number Publication Date
JPS5392607A true JPS5392607A (en) 1978-08-14
JPS5551381B2 JPS5551381B2 (en) 1980-12-24

Family

ID=11652415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP694777A Granted JPS5392607A (en) 1977-01-25 1977-01-25 Voice switch circuit

Country Status (1)

Country Link
JP (1) JPS5392607A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133756A (en) * 1981-02-12 1982-08-18 Fujitsu Ltd Audio switch circuit
JPS5817755A (en) * 1981-03-18 1983-02-02 金星通信株式会社 Speaker telephone system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121709A (en) * 1974-08-19 1976-02-21 Tokyo Shibaura Electric Co KAKUSEIDENWAKISEIGYOKAIRO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5121709A (en) * 1974-08-19 1976-02-21 Tokyo Shibaura Electric Co KAKUSEIDENWAKISEIGYOKAIRO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57133756A (en) * 1981-02-12 1982-08-18 Fujitsu Ltd Audio switch circuit
JPS5817755A (en) * 1981-03-18 1983-02-02 金星通信株式会社 Speaker telephone system

Also Published As

Publication number Publication date
JPS5551381B2 (en) 1980-12-24

Similar Documents

Publication Publication Date Title
AU514331B2 (en) Bidirectional voice frequency repeaters
JPS52147002A (en) Voice input system
AU501638B1 (en) Speech controlled loud-speaking
JPS5392607A (en) Voice switch circuit
AU513491B2 (en) Alkaline alloy fiber
JPS51128208A (en) Idling power saving
JPS51132095A (en) Reducing method of laser noise
JPS53123605A (en) Conference service system
JPS5364018A (en) Speaker system
JPS5248023A (en) Silver peroxide alkaline battery
JPS5382103A (en) Automatic answering telephone set
AU5128079A (en) Speech-direction recognition circuit for a speech controlled loud speaking telephone
JPS51134505A (en) Automatic telephone volume control according to the ambient noises
JPS5534954B2 (en)
JPS52130317A (en) Hitachi seisakusho k.k.
JPS5368107A (en) Automatic answering telephone set
JPS566000B2 (en)
JPS5378121A (en) Pattern preprocessor
JPS53136407A (en) Duplex handset
JPS53132911A (en) Telephone set
JPS5310420A (en) Speaker
JPS5392608A (en) Voice switch circuit
JPS5242008A (en) Line control system for push button telephone
JPS51141617A (en) Voice switching apparatus
JPS545320A (en) Control circuit for communication path