System for demodulation and synchronizing multiple tone waveform

System for detecting and recovering a transmitted signal

System for detecting position of object having data carrier

System for determining the acquisition of, and frequency compens

System for discrete data transmission with noise-like, broadband

System for dynamically exchanging and matching revision informat

System for evaluating transmission line impairments

System for generating a time reference value in the MAC layer of

System for generation of multiple pointed QAM signal spaces by u

System for handling data errors on a cellular communications sys

System for high speed data tranmission

System for improving the quality of a received radio signal

System for improving the quality of a received radio signal

System for locally testing a modem employing frequency shift key

System for maintaining low bit error rate in a starcoupled netwo

System for modulating/demodulating digital signals transmitted w

System for multi-level data transmission by means of an angle-mo

System for phasing digital trains and application thereof to the

System for reception of frequency modulated digital communicatio

System for regenerating a data word on a communications ring