Body worn active and passive tracking device

  • US 6,014,080 A
  • Filed: 10/28/1998
  • Issued: 01/11/2000
  • Est. Priority Date: 10/28/1998
  • Status: Expired due to Term
First Claim
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1. A tamper resistant body-worn tracking device worn on a limb of an offender for use in a wireless communication system receiving signals from a GPS and directly communicating spacial coordinates to multiple remote sites, the body-worn tracking device comprising(a) a sealed enclosed case containing means for implementing tamper detection;

  • (b) a main battery enclosed by the case;

    (c) a signaling device enclosed by the case;

    (d) a means to replace the main battery;

    (e) a circuit board enclosed by the case having attached on the circuit board, a wireless data modem, a GPS receiver having a means to acquire updates to a GPS almanac, a matched filtering GPS receiver, an RF front end connected to the GPS receiver and matched filtering GPS receiver and a field programmable gate array; and

    (f) the body-worn tracking device in contact with a central station computer containing an algorithm for comparing a current location of the body-worn tracking device to a schedule of rules and location restraints to determine if a static violation has occurred.

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