公开(公告)号：US11949634B1

公开(公告)日：2024-04-02

申请号：US17706474

申请日：2022-03-28

Applicant: Amazon Technologies, Inc.

Inventor： Nathan Labadie ,  Divya Naveenan ,  In Chul Hyun ,  Cheol Su Kim

IPC: H04L5/14 ,  H03F1/32 ,  H03G3/20 ,  H04B1/04

CPC classification number: H04L5/1461 ,  H03F1/3241 ,  H03G3/20 ,  H04L5/1438 ,  H04B2001/0416

Abstract: Technologies directed to a control circuit using dynamic signal compression are described. A control circuit includes a front-end module (FEM) coupled to an RF cable, the FEM having a low-noise amplifier (LNA). The control circuit further includes an automatic gain control (AGC) circuitry coupled to the FEM. The AGC circuitry receives a first radio frequency (RF) signal having a first portion of one or more symbols and a second portion of one or more symbols. The AGC circuitry further amplifies the first portion to generate a first portion of an output signal. The AGC circuitry further compresses the second portion to obtain a second portion of the output signal. The AGC circuitry further sends a control signal to cause the FEM to change a gain state value of the LNA from a first value to a second value based on a comparison between a voltage of the output signal and a reference voltage.