| 摘要 |
Speakerphone circuit (100) employing precision peak detectors (115, 125, 150, 155) in which the processing of talk down (TTD, RTD) signals and switch guard (TSG, RSG) signals is partitioned (140) in order to accurately control complementary switched gain in the transmit and receive channels to achieve improved sensitivity to talk down switching action by setting (135) a low switching threshold. |
