Method and apparatus for determining the precise location of a modified cellular telephone using registration messages and reverse control channel transmission

摘要

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.