Patent ID: 6373430
Filing Date: 2002-04-16
Classification: G01S,H04B

Abstract:
A portable GPS/radio unit capable of wirelessly communicating with one or more other such units, wherein each of said other units is adapted to transmit radio signals indicative of that unit's location, said GPS/radio unit comprising:a GPS receiver for receiving satellite signals from a plurality of satellites; a processor coupled with said GPS receiver for calculating the location of said GPS/radio unit as a function of the received satellite signals; a radio receiver coupled with the processor for receiving the radio signals transmitted by said other units, said processor being adapted to identify the location of said other units based on the received radio signals; a display coupled with the processor for indicating the location of at least one of said other units; a transmitter coupled with said processor for transmitting a radio signal to at least one of said other units, wherein said radio signal is indicative of a location of said portable GPS/radio unit; a speaker and a microphone for permitting voice communications with said other units; and a portable, handheld housing for housing said GPS receiver, said processor, said radio receiver, said display and said transmitter.