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7142813 Short range wireless device interface with parasitic power supply  
A short range wireless protocol is established to/from a processing device, such as a point of sale terminal. Adapters are designed for mating with different ones of commercially available...
6933889 Direction and distance finder  
The present invention relates to a system and method for locating the direction and distance to a RF signal source, primarily for search and rescue. The system and method includes a RF signal...
Matches 1 - 2 out of 2