05959580 is referenced by 213 patents and cites 18 patents.

A method and apparatus for locating a mobile radio communications transceiver in a cellular-telephone or cell-like communications system uses a simplified system for passive monitoring of the signals emitted by the transceiver. A single base station can determine a line of bearing to the remote transceiver. This line of bearing is then combined with collateral, position-sensitive information to determine the likely location of the transceiver. The present invention has particular applicability to roadway transportation in that it facilitates enhanced emergency (9-1-1) services and roadside assistance in response to calls for assistance, and it permits the passive monitoring of traffic flow.

Title
Communications localization system
Application Number
8/335331
Publication Number
5959580
Application Date
November 3, 1994
Publication Date
September 28, 1999
Inventor
James O Stevenson
Fairfax
VA, US
Charles J Hinkle Jr
Vienna
VA, US
John E Maloney
Springfield
VA, US
Agent
Sterne Kessler Goldstein & Fox P L L C
Assignee
KSI
VA, US
IPC
G01S 3/02
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