Dean Paul Vanden Heuvel

Method for location based intercept in a communication system

Flexible signal source location apparatus and method therefor

Method and apparatus for quick access to selected updated information in a selective call receiver

Method and apparatus for automatic generation and notification of tag information corresponding to a received message

Group radio with subscriber-radio controlled channel selection

Multiple format secure voice apparatus for communication handsets

Method and system for overhead bandwidth recovery in a packetized network

Iconic duplicate message indicator

Method and apparatus for user selectable quick data access in a selective call receiver

Satellite-based geolocation calibration system and method