公开(公告)号：US12081252B1

公开(公告)日：2024-09-03

申请号：US17951611

申请日：2022-09-23

Applicant: Amazon Technologies, Inc.

Inventor： Feng Xue ,  Aditya Chopra ,  Xiaoyi Wang

IPC: H04B1/10 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B1/1027 ,  H04B7/0617 ,  H04B7/086

Abstract: Technologies directed to correcting terrestrial interference using narrowband adaptive filtering and beamforming technology are described. One method includes receiving a first and second radio frequency (RF) signal. The method includes generating first digital samples corresponding to the first RF signal using a first sample rate and generating second digital samples corresponding to the first RF signal using a second sample rate that is lower than the first sample rate. The method further includes generating third digital samples corresponding to the second RF signal using the second sample rate. The method further includes determining parameters associated with a filtering process using the second digital samples and the third digital samples. The method further includes generating fourth digital samples using the parameters of the filtering process. The method further includes removing a first portion from the first RF signal using the first digital samples and the fourth digital samples.

公开(公告)号：US11791873B1

公开(公告)日：2023-10-17

申请号：US17853789

申请日：2022-06-29

Applicant: Amazon Technologies, Inc.

Inventor： Aditya Chopra ,  Xiaoyi Wang

IPC: H04W16/14 ,  H04B7/0456

CPC classification number: H04B7/0456

Abstract: Technologies directed to correction of terrestrial interference using spatial signal minimum beamforming are described. One method includes a first communication device with beamforming circuitry receiving an indication of a first direction. The method further includes determining that orienting a main lobe of a first antenna gain pattern along the first direction results in an RF interference condition. The method further includes determining a second antenna gain pattern. The second antenna gain pattern comprises a second main lobe oriented along the second direction. The method further includes determining a third antenna gain pattern of the beamforming circuitry using (i) the first antenna gain pattern and (ii) the second antenna gain pattern. The method further includes receiving a first RF signal with the beamforming circuitry configured with the third antenna gain pattern.