Abstract: A wearable device has an internal rechargeable power source for supplying power to internal circuitry of the device. An external rechargeable battery pack is physically and electrically interfaced to the wearable device and provides power to recharge the internal rechargeable power source while the device is being worn, thereby eliminating the need to connect the wearable device directly to a source of electricity using wires. The rechargeable battery pack is recharged in a charging station connected to a source of electricity.

Abstract: A text message containing a natural language request is sent from an originating station to a central server. The server parses the request and uses the originating station identification to authorize the request and determine the address of the object. The server then sends a request to the address of the object, the object acts upon the request and sends results and acknowledgements back to the server, where the results and acknowledgement are translated back into a natural language and sent to the originating station.

Abstract: A docking station is located in an offender's home. It is connected to a transformer, and a wireless modem. The docking station includes a processor board containing a microprocessor which receives the offender's home schedule from a central monitoring station via a cellular network and communicates with a miniature tracking device positioned in the docking station when the offender is at home and on the belt of an offender when he is away from home. The miniature tracking device receiving GPS signals. A tamper resistant bracelet transmitter permanently positioned on the offender's ankle communicates by wireless transmission to the tracking device.

Abstract: A docking station is located in an offender's home. It is connected to a transformer, and a telephone line. The docking station includes a processor board containing a microprocessor which receives the offender's home schedule from a central monitoring station via the telephone line and communicates with a miniature tracking device positioned in the docking station when the offender is at home and on the belt of an offender when he is away from home. The miniature tracking device receives a signal to notify the offender of violations or messages. A tamper resistant bracelet transmitter permanently positioned on the offender's ankle communicates by wireless transmission to the tracking device.

Abstract: A docking station is located in an offender's home. It is connected to a transformer, and a telephone line. The docking station includes a processor board containing a microprocessor which receives the offender's home schedule from a central monitoring station via the telephone line and communicates with a miniature tracking device positioned in the docking station when the offender is at home and on the belt of an offender when he is away from home. The miniature tracking device receives a signal to notify the offender of violations or messages. A tamper resistant bracelet transmitter permanently positioned on the offender's ankle communicates by wireless transmission to the tracking device.

Abstract: Tamper resistant body-worn tracking device to be worn by offenders or potential victims for use in a wireless communication system receiving signals from a global positioning system (GPS). The tracking device directly communicates spacial coordinates to multiple remote sites. The tracking device is an enclosed case worn on a limb of a person. The case contains a battery, a signaling device, and a circuit board containing a field programmable gate array, a wireless data modem, a conventional GPS receiver, and a matched filtering GPS receiver.

Abstract: A redundant system is provided for simultaneously notifying a victim about the approach of an offender when a message is sent to a central data base. The system includes multiple communication paths and assured message delivery. The offender's portable tracking apparatus is equipped with a memory card that sends and receives data and instruction to/from a central data base. The offender's position, determined by a Global Position System, is communicated simultaneously to a victim's portable tracking apparatus, to the central data base, law enforcement and the offender's supervisory authority. A connectionless oriented analog or digital wireless or circuit switched connection oriented digital or analog wireless signal is employed.

Abstract: A body worn transmitter and its associated portable monitoring receiver receiving global position signals, is provided with tamper detection to support twenty-four hour violation reporting from a subject under community supervision moves about the community. The body worn transmitter incorporates active radio frequency sensors to determine if the body worn transmitter has either been removed from the subject's body or the attachment strap has experienced tampering for the purpose of removal from the subject's body. A signal from the body worn transmitter is encrypted in order to prevent recording and retransmission of the body worn transmitter signal to an associated portable monitoring receiver for the purposes of masking body worn transmitter tampering or to make the body worn transmitter falsely appear in a different location. The body worn transmitter can be immersed in electrolyte solutions without generating a false tamper signal.

Abstract: A portable locator or tracking apparatus is provided for continuous location determination of subjects which communicates with a body-worn, non-removable, tamper resistant transceiver and a central data-base system. The portable tracking apparatus has a Global Position System (GPS) receiver and inertial sensors for determining location, microprocessors for logic and mathematical algorithm processing, memory for programs and data, a wireless transceiver for communications with the body-worn device, a wireless transceiver for communicating with the central data-base system, an alpha-numeric display for displaying text messages sent to the subject acoustic speaker and microphone for voice and tone messages with subjects, electronic tamper sensors, motion sensors, attitude position sensor, batteries and external connectors for power, recharge, communications and auxiliary antennas.