Portable satellite communication terminal system

Portable terminal, portable telephone and master slave...

Position discovery using short range mobile devices

Position monitoring for communicable and uncommunicable mobile s

Position registration for cellular satellite communication...

Positioning system for a geostationary satellite

Positioning system, terminal device, control method of...

Power control method and apparatus for satellite based telecommu

Power control system for satellite communications

Power control systems and methods for use in satellite-based...

Power management method of and apparatus for use in a...

Power monitoring system for a single site, split location trunke

Power saving method for multiple channels per carrier (MCPC)...

Power supply systems for use in radio communication systems

Priority system for a wide area transmission trunked communicati

Priority-based bandwidth allocation and bandwidth-on-demand...

Privacy communication method and system

Process for re-transmitting single frequency signals and a...

Processor-controlled variable gain cellular network...

Processor-to-processor communications protocol for a public serv