H - Electricity – 04 – B
Patent
H - Electricity
04
B
325/38, 325/89
H04B 7/00 (2006.01) H04B 1/06 (2006.01) H04B 1/10 (2006.01)
Patent
CA 1281778
Abstract The present invention minimizes noise pops in the audio output of a receiver due to Rayleigh fading of the received signal by using a controllable attenuator in series with the audio output. A signal which determines the amount of attenuation is generated in response to the strength of the received signal so that the audio output is attenuated during Rayleigh fades when the received signal decreases below a predetermined threshold. The threshold is preferably s-t relative to the average strength Or the received signal. The increased attenuation results in lower audio output and thus mutes the magnitude of the pop generated during the fade. The invention also improves the audio output in a system using companding.
533388
Eastmond Bruce Charles
Eness Orville Milford
Gowling Lafleur Henderson Llp
Motorola Inc.
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