Access control for a fixed cellular terminal using a secondary p
Adapter unit for a portable radio telephone enabling either one
Adapter unit for adaptively supplying a portable radio telephone
Adapter unit for adaptively supplying a portable radio telephone
Adaptive radio transceiver with a local oscillator
Antenna assembly with balun and tuning element for a portable ra
Antenna operating mechanism for a portable radio communication a
Antenna transmission coupling arrangement
Apparatus for converting TV audio signals for reception on a nea
Apparatus for protecting receiver in TDD wireless...
Arrangement for transmitting and receiving radio frequency signa
Assistance summoning system
Authentication key entry in cellular radio system
Autocalibration of a transceiver through nulling of a...
Band switchable injection oscillator and communication...
Battery pack antenna suitable for use with two-way portable tran
Battery rundown protection system for an automobile having a rad
Bicycle helmet communication device
Car-mounted type booster system for hand-held phone
Carry case having paging circuitry section