The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 2020
Filed:
Aug. 03, 2018
Nxp Usa, Inc., Austin, TX (US);
Liwen Chu, San Ramon, CA (US);
Hongyuan Zhang, Fremont, CA (US);
Christian R. Berger, San Jose, CA (US);
Niranjan Grandhe, San Jose, CA (US);
Sudhir Srinivasa, Campbell, CA (US);
Hui-Ling Lou, Sunnyvale, CA (US);
NXP USA, INC., Austin, TX (US);
Abstract
A first communication device prompts a plurality of second communication devices to transmit, during a contiguous time period reserved for a range measurement exchange, respective first null data packets (NDPs) at respective times. The first communication device receives first NDPs from at least some of the second communication devices during the contiguous time period, and transmits one or more second NDPs to the plurality of second communication devices. The first communication device uses reception of the first NDPs and transmission of the one or more second NDPs to determine respective ranges between the first communication device and respective second communication devices.