JPS51135305A - Control block of telephone equipment for high voice - Google Patents

Control block of telephone equipment for high voice

Info

Publication number
JPS51135305A
JPS51135305A JP50060363A JP6036375A JPS51135305A JP S51135305 A JPS51135305 A JP S51135305A JP 50060363 A JP50060363 A JP 50060363A JP 6036375 A JP6036375 A JP 6036375A JP S51135305 A JPS51135305 A JP S51135305A
Authority
JP
Japan
Prior art keywords
control block
telephone equipment
high voice
voice
misact
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
JP50060363A
Other languages
Japanese (ja)
Inventor
Juhei Takahashi
Hiroo Mafune
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 JP50060363A priority Critical patent/JPS51135305A/en
Publication of JPS51135305A publication Critical patent/JPS51135305A/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)

Abstract

PURPOSE:To strive a prevention of howling and misact, and prevent a tone quality deterioration such as a cut of beginning of talk even if a transmission loss of trans mission line is big.
JP50060363A 1975-05-19 1975-05-19 Control block of telephone equipment for high voice Pending JPS51135305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50060363A JPS51135305A (en) 1975-05-19 1975-05-19 Control block of telephone equipment for high voice

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50060363A JPS51135305A (en) 1975-05-19 1975-05-19 Control block of telephone equipment for high voice

Publications (1)

Publication Number Publication Date
JPS51135305A true JPS51135305A (en) 1976-11-24

Family

ID=13139971

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50060363A Pending JPS51135305A (en) 1975-05-19 1975-05-19 Control block of telephone equipment for high voice

Country Status (1)

Country Link
JP (1) JPS51135305A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63314943A (en) * 1987-05-15 1988-12-22 アルカテル・エヌ・ブイ Volume range control circuit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830303A (en) * 1971-08-20 1973-04-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830303A (en) * 1971-08-20 1973-04-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63314943A (en) * 1987-05-15 1988-12-22 アルカテル・エヌ・ブイ Volume range control circuit

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