Mobile radio communication equipment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 4, 2001
Grant Date -
N/A
app pub date -
Feb 12, 1999
filing date -
Feb 20, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A level detector 81 detects and calculates a power value A1 of a d.c. component of a transmitting audio signal. A subtractor 82 calculates a difference between a transmitting power value A1 and a reference power value A0 written in a memory 14 to obtain an amplification degree A2 which is temporarily stored in a memory portion 11. When a receiving audio signal is inputted through an audio signal processing portion 5 to an amplifier 83 of a signal comparator portion 8 at a next timing, the amplification degree A2 of the receiving sound read out from the memory portion 11 is read out to variably control a gain of the amplifier 83 to thereby amplify the receiving audio signal A2 times. Thus, a receiving sound volume can be variably regulated according to a transmitting sound volume.
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