JPS5215208A - Voice switch for telephone set - Google Patents

Voice switch for telephone set

Info

Publication number
JPS5215208A
JPS5215208A JP9173075A JP9173075A JPS5215208A JP S5215208 A JPS5215208 A JP S5215208A JP 9173075 A JP9173075 A JP 9173075A JP 9173075 A JP9173075 A JP 9173075A JP S5215208 A JPS5215208 A JP S5215208A
Authority
JP
Japan
Prior art keywords
telephone set
voice switch
voice
switch
damazed
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
JP9173075A
Other languages
Japanese (ja)
Inventor
Koichi Watamura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP9173075A priority Critical patent/JPS5215208A/en
Publication of JPS5215208A publication Critical patent/JPS5215208A/en
Pending 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)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To eliminate the cutting off the start of a talk and damazed ends of words in the elephone system formed with the combination of speakers and microphones.
JP9173075A 1975-07-28 1975-07-28 Voice switch for telephone set Pending JPS5215208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9173075A JPS5215208A (en) 1975-07-28 1975-07-28 Voice switch for telephone set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9173075A JPS5215208A (en) 1975-07-28 1975-07-28 Voice switch for telephone set

Publications (1)

Publication Number Publication Date
JPS5215208A true JPS5215208A (en) 1977-02-04

Family

ID=14034616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9173075A Pending JPS5215208A (en) 1975-07-28 1975-07-28 Voice switch for telephone set

Country Status (1)

Country Link
JP (1) JPS5215208A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53136407A (en) * 1977-05-02 1978-11-29 Nippon Telegr & Teleph Corp <Ntt> Duplex handset
JPS59126331A (en) * 1982-12-24 1984-07-20 Fujitsu Ltd Voice switching circuit
JP2003198433A (en) * 2001-12-26 2003-07-11 Iwatsu Electric Co Ltd Echo canceler circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171003A (en) * 1974-12-17 1976-06-19 Matsushita Electric Ind Co Ltd KOSEISHIKIDOJITSUWASOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171003A (en) * 1974-12-17 1976-06-19 Matsushita Electric Ind Co Ltd KOSEISHIKIDOJITSUWASOCHI

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53136407A (en) * 1977-05-02 1978-11-29 Nippon Telegr & Teleph Corp <Ntt> Duplex handset
JPS562470B2 (en) * 1977-05-02 1981-01-20
JPS59126331A (en) * 1982-12-24 1984-07-20 Fujitsu Ltd Voice switching circuit
JP2003198433A (en) * 2001-12-26 2003-07-11 Iwatsu Electric Co Ltd Echo canceler circuit

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