Patent ID: 7933310
Filing Date: 2011-04-26
Classification: H04B

Abstract:
1. A system for a fast frequency hopping radio, the system comprising a transmit part and a receive part, each of the receive and transmit parts comprising a unit for random frequency generation, the random frequency generating unit of both parts being similar, wherein the random frequency generator of each of said parts comprises a pseudo random number generator (PRN-generator), said PRN-generator being based on a FIR-algorithm, said PRN-generator uses a clock signal which has been generated externally to the system as input, and said PRN-generator further comprises a fuzzier unit, an encryption unit, which in response to receiving two input signals, a key and a time-variant signal, said encryption unit outputs a data word, and a look-up table including a list of frequencies, wherein each frequency on said list of frequencies corresponds different values of said data word.