75462604
Apr 4, 1998
Dec 23, 2003
Wireless communication system components for original equipment manufacturers, namely, 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, 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
Electrical and Scientific Apparatus