Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1997-03-12
2000-09-26
Eisenzopf, Reinhard J.
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455 673, 379389, 381 941, H04B 138
Patent
active
061252883
ABSTRACT:
A method of detecting a noise level from audio signals produced consecutively in time by a microphone. The method includes the steps of evaluating an average level of the audio signals consecutively in time, and selecting the smallest of the average levels as the noise level. A telecommunication apparatus for adaptively controlling an audio output level in response to the noise level thus detected is also disclosed.
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Appiah Charles N.
Eisenzopf Reinhard J.
Ricoh & Company, Ltd.
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