Telephone apparatus including electrical connector

Details Telephone apparatus including electrical connector Telephone apparatus including electrical connector

1975-06-09

1977-02-22

Lake, Roy

Geometrical instruments

339184M, H01R 1354

Patent

active

040089401

ABSTRACT:
This telephone apparatus includes a headset module and a station module. The headset is of a lightweight type which requires an amplifier for the electrical signal produced by the microphone, in order for the output signal to be compatible with conventional telephone switchboard apparatus. The headset module also includes electrical conductors extending from the microphone and earphone of the headset to a latchable plug forming part of a connector. The station module includes a receptacle for receiving the latchable plug, an amplifier and a connector plug engageable with a conventional receptacle. That connector plug may be part of a rigid assembly including the other parts of the station module, or it may be connected to that assembly by flexible conductors.

REFERENCES:
patent: 3721939 (1973-03-01), Paugh
patent: 3829821 (1974-08-01), Derr et al.
"A Transistor Amplifier For Operators' Headsets"; A. J. Chase; in Bell Laboratories Record, vol. 36 No. 10, pp. 381-383, (Oct. 1958).

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