Search International and National Patent Collections

1. (WO2013148077) MASHUP OF AP LOCATION AND MAP INFORMATION FOR WIFI BASED INDOOR POSITIONING

Pub. No.:    WO/2013/148077    International Application No.:    PCT/US2013/028937
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Tue Mar 05 00:59:59 CET 2013
IPC: G01C 21/20
G09B 29/00
H04W 64/00
Applicants: QUALCOMM INCORPORATED
Inventors: GARIN, Lionel Jacques
RAMAN, Sundar
Title: MASHUP OF AP LOCATION AND MAP INFORMATION FOR WIFI BASED INDOOR POSITIONING
Abstract:
An apparatus and method for merging a disjoint pair of maps comprising a digital building map that includes a floor plan and an access point (AP) map that includes identifiers for a plurality of access points is presented. In some embodiments, a first trajectory plot, of a mobile device, relative to the AP map, is received and a plurality of hypotheses is set, where each hypothesis defines a unique translation between the AP map and the building map. A plurality of costs may be computed for the first trajectory, where each cost of the first trajectory corresponds to a distinct hypothesis in the plurality of hypotheses. The hypothesis where the first trajectory has the lowest cost relative to the other hypotheses may be selected.