Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-02-26
1999-05-11
Bost, Dwayne D.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455550, H04Q7/32
Patent
active
059038535
ABSTRACT:
A noise suppressing circuit in a digital portable telephone which adjusts a level of signals from a microphone through an analog-to-digital converter to suppress ambient noise. An encoder producers encoded signals from output signals of the noise suppressing circuit. By suppressing ambient noise in a transmitting side, the digital portable telephone is capable of preventing an awkward feeling to a person in a receiving side.
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Bost Dwayne D.
NEC Corporation
Trost William G.
LandOfFree
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