Automatic police emergency locator system
Data transmission system
Digital memory system
Information transmission system retransmitting information signa
Method and a system for detecting communication relaying...
Method and a system for detecting communication relaying...
Method and apparatus for providing location services for a...
Method of creating active multipaths for mimo wireless systems
Method, system and apparatus for transmitting, receiving,...
Radio telephone communication network
Record message delivery system
Remotely controllable message broadcast system including central
Same frequency repeater for a multiple repeater system
Short range radio information system
System which routes radio transmissions to selected repeaters fo
TDMA repeater eliminating feedback