Radio transmission method using repeater stations with spectrum

Radio transmission system

Radio transmission system

Radio transmission system for binary coded signals

Radio transmitter

Radio transmitter energy recovery system

Radio transmitter time out timer

Radio transmitter/receiver for digital and analog communications

Radio transmitters

Radiocommunication system repeater

Radix mapping with variable number of symbols in mapping period

Railway signalling receiver

Raised-cosine filtering for modems

Rake receiver

Rake receiver and finger management method for spread spectrum c

Rake receiver with selective ray combining

Rake receiving apparatus for direct sequence code division multi

Rake reception method for a spread spectrum signal

Random access in mobile radio telephone systems

Random parity coding system