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:
May. 19, 2020
Filed:
Apr. 06, 2018
Marvell World Trade Ltd., St. Michael, BB;
Liwen Chu, San Ramon, CA (US);
Sagar Tamhane, Fremont, CA (US);
Hongyuan Zhang, Fremont, CA (US);
Christian Berger, San Jose, CA (US);
Niranjan Grandhe, San Jose, CA (US);
Sudhir Srinivasa, Campbell, CA (US);
Hui-Ling Lou, Sunnyvale, CA (US);
Marvell Asia Pte, Ltd., Singapore, SG;
Abstract
During a service period (SP) for a ranging measurement signal exchange between a first communication device and one or more second communication devices, the first communication device receives respective first null data packets (NDPs) from the one or more second communication devices, and transmits respective second NDPs to the one or more second communication devices. The first communication device transmits, during the SP, respective first ranging measurement feedback packets to the one or more second communication devices to allow each of the one or more second communication devices to determine a time-of-flight between the first communication device and the second communication device and/or receives, during the SP, respective second ranging measurement feedback packets from the one or more second communication devices to allow the first communication device to determine respective times-of-flight between the first communication device and the one or more second communication devices.