Patent ID: 7394844

Claim:
A method of transmitting a spread spectrum signal from a transmitter comprising: (a) parsing a spread spectrum serial bit stream into a plurality of parallel streams; (b) within each of said plurality of parallel streams, forming a plurality of successive symbols; (c) generating a signal from said plurality of successive symbols, wherein said signal is generated by the steps of: (c1) up sampling by inserting zeros between said plurality of successive symbols; (c2) selecting a low-pass filter and a high-pass filter pair derived from a wavelet packet transform for encoding said plurality of successive symbols; and (c3) alternating an ordering of said low-pass and high-pass filters within each pair to preserve a natural frequency ordering of said filter encoded plurality of successive symbols; (d) repeating steps (c1) through (c3) recursively log 2 N times for a signal of length N yielding the spread spectrum signal; and (e) transmitting the spread spectrum signal from the transmitter.