Portable radio telephone having a slidable speaker unit

Details Portable radio telephone having a slidable speaker unit Portable radio telephone having a slidable speaker unit

1993-07-15

1995-10-24

Hofsass, Jeffery A.

Telephonic communications

Terminal

Housing or housing component

379434, H04M 100

Patent

active

054616727

ABSTRACT:
A portable radiotelephone transmits and receives voice information signals to and from a telephone base station by radio. The radio telephone includes a telephone main body having a key pad section mounted on its outer surface and containing a microphone unit. A speaker housing containing a speaker unit is slidably mounted on the telephone main body. A switching unit located between the telephone body and the speaker housing establishes electrical connection and disconnection between the telephone body and the speaker housing depending upon their relative positions as changed by sliding the speaker unit. Electrical connection is established when the speaker housing is moved in a direction away from the microphone unit located on the telephone main body.

REFERENCES:
patent: 4272655 (1981-06-01), MacKenzie et al.
patent: 5278993 (1994-01-01), Reiff et al.

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