X-PHONE Trademark

Wireless communication systems consisting of radio base stations and controllers, switches, user radio-based terminals, modems, radio frequency (RF) and intermediate frequency (IF) transceiver circuit assemblies, analog and digital signal processing circuit assemblies battery packs, computer programs used in respective processors, communication modems, data processing circuit assemblies, switching circuit assemblies, vocoder data selection circuit assemblies, computer programs for controlling respective assemblies; integrated circuits for spread spectrum modulation, spread spectrum demodulation, error correction encoding, error correction decoding, vocoding and preprogrammed memories containing processor instructions