公开(公告)号：US10090818B1

公开(公告)日：2018-10-02

申请号：US15706821

申请日：2017-09-18

Applicant: Silicon Laboratories Inc.

Inventor： Alexander August Arthur Hakkola ,  Russell Alvin Schultz ,  Dana John Taipale

IPC: H03G3/30 ,  H04R3/04 ,  G10L25/60 ,  H04B1/16

Abstract: A receiver includes a compressive factor generator configured to generate a compressive gain signal based on a digital demodulated received signal, a signal quality estimate, an upper modulation level, and a lower modulation level. The receiver includes a gain circuit configured to apply the compressive gain signal to the digital demodulated received signal. The compressive factor generator may include a peak tracking filter configured to generate a peak tracking signal based on the digital demodulated received signal and filter configuration information. The compressive factor generator may include a compression threshold generator configured to generate a modulation index based on the peak tracking signal, the signal quality estimate, the upper modulation level, and the lower modulation level. The compressive factor generator may include a compression curve and a gain compression hold and recovery processor.