Patent ID: 8654819

Claim:
A method for Pulse Rotation Modulation (“PRM”) in a spread spectrum communication system, comprising: generating, by an electronic circuit, a plurality of first segments of a numerical sequence based on a number of first data symbols; and encoding, by said electronic circuit, said first data symbols within said numerical sequence by using a sequence rotation process which includes (a) shifting positions of numbers contained in each of said plurality of first segments “X” positions in a first direction, where “X” is defined as an integer value represented by a respective portion of said first data symbols, (b) moving one of a last “X” numbers of said plurality of first segments to a beginning of a respective segment of said plurality of first segments, and a first “X” numbers of said plurality of first segments to an end of said respective segment of said plurality of first segments; and generating a spread spectrum signal which is pulse rotation modulated by combining a data signal with said numerical sequence having said first data symbols encoded therein, said data signal comprising second data symbols that are different than said first data symbols and not encoded using said sequence rotation process, wherein said plurality of first segments comprise a spreading code for said data signal.