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:
Aug. 14, 2018
Filed:
Jan. 23, 2015
Avago Technologies General Ip (Singapore) Pte. Ltd., Singapore, SG;
Manoj Mathew George, Bangalore, IN;
Mark Gonikberg, Los Altos Hills, CA (US);
Abstract
Determining a mobile device's location, includes receiving, by the mobile device, a first packet from a first access point and generating a first time-stamp representing the first packet's arrival time; receiving, by the mobile device, a second packet from a second access point and generating a second time-stamp representing the second packet's arrival time; using these to determine the difference between the arrival times of the first and second packet at the mobile device; receiving, by the mobile device, first information representative of the first packet transmission time and second information representative of the second packet transmission time, the first and second information used to find the interval between the transmission of the first and second packets from the first and second access points respectively; determining, by the mobile device, the difference between the flight-times of the first and second packets to the mobile device; and determining, by the mobile device, the difference between the distance from itself to the first access point, and the distance from itself to the second access point and doing this over sufficient pairs of access points to find its location.