Half duplex communication system having quick channel assignment
Hands-free telephone conversation system and relay device in...
Hearing system, hearing device and method of operating and...
High altitude airborne craft used as radio relay and method...
High volume uplink in a broadband satellite communications...
High-frequency signal booster
Host radio telephone to directly access a handset NAM through a
Hub communications satellite and system
Hybrid satellite communications system
Hybridized space/ground beam forming