Patent ID: 6020839
Filing Date: 2000-02-01
Classification: H03D,H04B,H04L

Abstract:
A method of processing an analog signal comprising a plurality of digital data streams, each one of said plurality of digital data streams encoded as a series of pulses of a corresponding one of a plurality of lengths, the method comprising:mixing said analog signal with a local oscillator signal;passing said analog signal mixed with said local oscillator signal through a filter tuned to a first frequency by said step of mixing said analog signal with said local oscillator signal, said first frequency corresponding to a selected one of said plurality of lengths, to recover said series of pulses corresponding to said selected one of said plurality of lengths;detecting a polarity of each of said pulses;using said detected polarities to reconstruct said digital data stream encoded as said series of pulses corresponding to said selected one of said plurality of lengths.