Spread spectrum communications system without a receiver...

Details Spread spectrum communications system without a receiver... Spread spectrum communications system without a receiver...

H - Electricity

04

K

H04K 1/00 (2006.01)

Patent

CA 2065133

ABSTRACT A direct sequence spread spectrum communications method whereby: at the transmitter, a highly accurate channel carrier is angle modulated with an audio or data signal and the modulated carrier in turn binary phase modulated by mixing in a double balanced mixer with a binary pseudo-random sequence to generate a suppressed carrier double sideband signal with a spectrum width determined by the clock rate of the pseudo-random sequence. The pseudo-random sequence, may be generated by a pre-stored sequence of data read from memory or from a maximal length shift register circuit or from a computational means. The spread spectrum signal is amplified in a power amplifier means and coupled to an antenna means for transmission.

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