07023383 is referenced by 166 patents and cites 43 patents.

A multiple pass location processing method, for use in a wireless location system (WLS), comprises identifying a received transmission as requiring multiple pass location processing whereby the WLS produces a first, lower quality location estimate and then subsequently produces a second, higher quality location estimate. The WLS then produces the first location estimate and provides it to a first location application, and then produces the second location estimate. The second location estimate may be a more accurate estimate than the first location estimate and/or of a higher confidence than the first location estimate. This method is suitable, but not limited, for use in connection with locating a wireless transmitter involved in an emergency services call and routing the call to a call center.

Title
Multiple pass location processor
Application Number
10/915786
Publication Number
7023383 (B2)
Application Date
August 11, 2004
Publication Date
April 4, 2006
Inventor
Matthew L Ward
Collegeville
PA, US
Robert J Anderson
Phoenixville
PA, US
Louis A Stilp
Berwyn
PA, US
Agent
Woodcock Washburn
Assignee
Trueposition
PA, US
IPC
G01S 3/02
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