Telecommunications – Transmitter and receiver at same station – With a common signal processing stage
Patent
1991-10-08
1994-01-04
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
With a common signal processing stage
455 90, 455349, 455351, 455350, 379420, 379432, 379433, 361814, H04B 138
Patent
active
052769160
ABSTRACT:
A radio or speaker-microphone unit includes a housing having first and second portions. A speaker is disposed in one of the portions and a microphone in the other of the portions. The portions are movable between first and second relative positions, with one of the positions providing a handset configuration and the other providing a speaker-microphone configuration. A switch senses the relative position of the housing portions and adjusts the gain of an audio amplifier.
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Cohodes Suzanne Y.
Pawlish Joy N.
Eisenzopf Reinhard J.
Keough Timothy H.
Motorola Inc.
Nichols Daniel K.
Rhyne Lesley Ann
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