05537460 is referenced by 148 patents and cites 27 patents.

A remote command and control center follows and finds a small object located within the geographic area of coverage of one or more cellular radiotelephone systems. A tagging device, radiotelephone, with a unique identification placed on or in any object will automatically activate when required and emit radio frequency signals, allowing it to be traced and located throughout the nation's cellular radiotelephone system. The radiotelephone accepts and implements commands from the remote command and control center and will ultimately be acquired with the use of a mobile direction finding radio/receiver and antenna set.

Title
Method and apparatus for determining the precise location of a modified cellular telephone using registration messages and reverse control channel transmission
Application Number
8/272321
Publication Number
5537460
Application Date
July 8, 1994
Publication Date
July 16, 1996
Inventor
Jerry W Howe
24130 Johnson Rd., NW., Poulsbo, 98370
WA, US
Robert O Holliday Jr
3901 El Cimo La, NE., Bainbridge Island, 98110
WA, US
Agent
Nixon & Vanderhye
IPC
H04Q 7/32
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