JPS55137754A - Switch of telephone transmitter circuit - Google Patents

Switch of telephone transmitter circuit

Info

Publication number
JPS55137754A
JPS55137754A JP4592679A JP4592679A JPS55137754A JP S55137754 A JPS55137754 A JP S55137754A JP 4592679 A JP4592679 A JP 4592679A JP 4592679 A JP4592679 A JP 4592679A JP S55137754 A JPS55137754 A JP S55137754A
Authority
JP
Japan
Prior art keywords
switch
telephone transmitter
relay
transmitter circuit
telephone
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
JP4592679A
Other languages
Japanese (ja)
Inventor
Yoshimasa Yuasa
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 JP4592679A priority Critical patent/JPS55137754A/en
Publication of JPS55137754A publication Critical patent/JPS55137754A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/19—Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

PURPOSE:To eliminate ambient noise for relay by fitting a plus or/and minus circuits connected to a telephone transmitter. CONSTITUTION:Switch 4 to disconnect or connect plus circuit 2 or/and minus circuit 3 of telephone transmitter 1 is fitted to telephone set main body or handset 6, and switch 4 is connected for busy and is disconnected for relay, thus eliminating ambient noise for relay.
JP4592679A 1979-04-14 1979-04-14 Switch of telephone transmitter circuit Pending JPS55137754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4592679A JPS55137754A (en) 1979-04-14 1979-04-14 Switch of telephone transmitter circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4592679A JPS55137754A (en) 1979-04-14 1979-04-14 Switch of telephone transmitter circuit

Publications (1)

Publication Number Publication Date
JPS55137754A true JPS55137754A (en) 1980-10-27

Family

ID=12732859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4592679A Pending JPS55137754A (en) 1979-04-14 1979-04-14 Switch of telephone transmitter circuit

Country Status (1)

Country Link
JP (1) JPS55137754A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189761A (en) * 1983-04-11 1984-10-27 Seiko Epson Corp Telephone set
JPS59189762A (en) * 1983-04-11 1984-10-27 Seiko Epson Corp Integrated circuit for telephone set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59189761A (en) * 1983-04-11 1984-10-27 Seiko Epson Corp Telephone set
JPS59189762A (en) * 1983-04-11 1984-10-27 Seiko Epson Corp Integrated circuit for telephone set

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