US 6,983,146 B2
Location determination using location data items received by short-range communication
Michael P Spratt, Bath (United Kingdom)
Assigned to Hewlett-Packard Development Company, L.P., Houston, Tex. (US)
Filed on Jun. 03, 2002, as Appl. No. 10/162,036.
Claims priority of application No. 0114144 (GB), filed on Jun. 11, 2001; and application No. 0117698 (GB), filed on Jul. 20, 2001.
Prior Publication US 2002/0187782 A1, Dec. 12, 2002
Int. Cl. H04Q 7/20 (2006.01); H04B 5/00 (2006.01)
U.S. Cl. 455—435 24 Claims
OG exemplary drawing
 
1. A location determination method comprising:
an entity receiving by short-range communication, location data items that originate at known locations and that each specifies its originating location and a time value dependent on when it originated from that location; and
the entity deriving it's location from location data items it has received by effecting a weighted combination of the known locations specified in a plurality of the received location data items, the weighting of the known location specified in each received location data item used in effecting the weighted combination being greater than zero and dependent on the associated time value.