Combined global positioning system receiver and radio
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jun 1, 2010
Grant Date -
N/A
app pub date -
Oct 19, 2006
filing date -
Nov 1, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A portable GPS/radio unit (10) communicates over a wireless radio network (12) with at least one other such unit. The unit (10) may transmit radio signals over the network (12) indicative of the unit's location. The unit (10) includes a single, push-to-talk button (38) that may be pressed to both transmit a voice communication and to initiate transmission of location data. The unit (10) also includes a 'polling' function that requests location data from other units, an auxiliary coding system that codes or encrypts all transmitted data, and an emergency message feature that facilities the transmission and receipt of emergency messages.
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