JPS5668048A - Acoustic coupler - Google Patents

Acoustic coupler

Info

Publication number
JPS5668048A
JPS5668048A JP14441479A JP14441479A JPS5668048A JP S5668048 A JPS5668048 A JP S5668048A JP 14441479 A JP14441479 A JP 14441479A JP 14441479 A JP14441479 A JP 14441479A JP S5668048 A JPS5668048 A JP S5668048A
Authority
JP
Japan
Prior art keywords
case
receiving part
transmission part
acoustic coupler
handset
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
JP14441479A
Other languages
Japanese (ja)
Inventor
Toru Shinabe
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP14441479A priority Critical patent/JPS5668048A/en
Publication of JPS5668048A publication Critical patent/JPS5668048A/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
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H04M1/2155—Acoustic coupling

Abstract

PURPOSE:To make a device small-size and light-weight, by constituting the transmission part and the receiving part of the acoustic coupler as independent bodies separately from each other. CONSTITUTION:The acoustic coupler has receiving part 7 incorporating microphone 17, sensor 18, and so on and transmission part 6 incorporating speaker 19, and these parts are constituted independently of each other as independent bodies. Receiving part 7 and transmission part 6 are to be mounted in the receiver side and the transmitter side of handset 5 respectively and can be fitted and removed and are put on installation face 21 through vibration-proof leg parts 20a and 20b. In case that transmission part 6 and receiving part 7 are mounted, the handset of telephone set 5 is put through these leg parts 20a and 20b on the installation face normally. As a result, since the frame, the case stand related to the frame, and the case part can be omitted, the case can be small-size and light-weight, and the vibration-proof effect can be improved.
JP14441479A 1979-11-09 1979-11-09 Acoustic coupler Pending JPS5668048A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14441479A JPS5668048A (en) 1979-11-09 1979-11-09 Acoustic coupler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14441479A JPS5668048A (en) 1979-11-09 1979-11-09 Acoustic coupler

Publications (1)

Publication Number Publication Date
JPS5668048A true JPS5668048A (en) 1981-06-08

Family

ID=15361611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14441479A Pending JPS5668048A (en) 1979-11-09 1979-11-09 Acoustic coupler

Country Status (1)

Country Link
JP (1) JPS5668048A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415769A (en) * 1980-10-27 1983-11-15 C. I. S. E., Spa Electromagnetic telephone coupling device
JPS58191754U (en) * 1982-06-14 1983-12-20 松下電器産業株式会社 acoustic coupler
JPS6144947U (en) * 1984-08-28 1986-03-25 株式会社田村電機製作所 acoustic coupling device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825406A (en) * 1971-08-04 1973-04-03

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825406A (en) * 1971-08-04 1973-04-03

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4415769A (en) * 1980-10-27 1983-11-15 C. I. S. E., Spa Electromagnetic telephone coupling device
JPS58191754U (en) * 1982-06-14 1983-12-20 松下電器産業株式会社 acoustic coupler
JPS645415Y2 (en) * 1982-06-14 1989-02-10
JPS6144947U (en) * 1984-08-28 1986-03-25 株式会社田村電機製作所 acoustic coupling device

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