A compact combined position locating and analog cellular telephone unit. A single processor is coupled to a position locating system and a cellular telephone system. In the present invention, the single processor controls the functions and operation of both the position locating system and the cellular...http://www.google.co.uk/patents/US5877724?utm_source=gb-gplus-sharePatent US5877724 - Combined position locating and cellular telephone system with a single shared microprocessor
