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:
Sep. 10, 2019
Filed:
Oct. 24, 2017
Marvell International Ltd., Hamilton, BM;
BoChih Liu, Pudong District, CN;
Zhike Jia, Fremont, CA (US);
Jing Yu, Shanghai, CN;
Paul Lambert, Mountain View, CA (US);
Marvell International Ltd., Hamilton, BM;
Abstract
The present disclosure describes techniques and apparatuses for device-to-device radio frequency proximity determination. These techniques, in contrast to conventional cellular and GPS services, can accurately locate mobile devices at relatively low cost. In some aspects, three or more mobile communication devices communicate radio frequency ranging signals and, using information about these signals, a distance and direction between two of the devices is determined. In some other aspects, two mobile communication devices communicate radio frequency ranging signals separated in time, and after movement of one of the mobile communication devices. Using information about these two signals, a distance and direction between the two devices is determined.