发明名称 Location determination by correcting for antenna occlusion
摘要 Systems and methods for receiving a plurality of wireless communication signals and identifying an antenna occlusion condition from the received plurality of wireless communication signals is disclosed. A correction factor may be determined based at least in part on determined signal strength corresponding to each of the received wireless communication signals. The correction factor may be used to determine a location based at least in part on the signal strength corresponding to each of the received communication signals and the determined correction factor.
申请公布号 US9507008(B1) 申请公布日期 2016.11.29
申请号 US201314105925 申请日期 2013.12.13
申请人 Amazon Technologies, Inc. 发明人 Thiagarajan Arvind
分类号 G01S5/00 主分类号 G01S5/00
代理机构 Sutherland Asbill & Brennan LLP 代理人 Sutherland Asbill & Brennan LLP
主权项 1. A user device, comprising: an antenna to receive a plurality of wireless communication signals from a plurality of wireless communication access points; at least one memory that stores computer-executable instructions; at least one processor that accesses the at least one memory, wherein the at least one processor executes the computer-executable instructions to: determine a first signal strength of a first communication signal received from a first wireless communications access point at a first time;determine a second signal strength of a second communication signal received from a second wireless communications access point at substantially the first time;determine a third signal strength of a third communication signal received from the first wireless communications access point at a second time;determine a fourth signal strength of a fourth communication signal received from the second wireless communications access point at substantially the second time;determine a first change in signal strength using the first signal strength and the third signal strength;determine a second change in signal strength using the second signal strength and the fourth signal strength;determine that the antenna is at least partially occluded during the second time, wherein the first change or the second change in signal strength is greater than a predetermined threshold;determine a correction factor using the first, the second, the third, and the fourth signal strengths based at least in part on the first change or the second change being greater than the predetermined threshold;determine a first corrected signal strength by combining the correction factor with the first signal strength;determine a second corrected signal strength by combining the correction factor with the second signal strength; anddetermine a location of the user device based at least in part on the first corrected signal strength and the second corrected signal strength.
地址 Reno NV US