Patent ID: 6292663
Filing Date: 2001-09-18
Classification: H04L

Abstract:
A transmitting method comprising the steps of:selecting one of a plurality of orthogonal conversions to perform on a desired information;performing the selected orthogonal conversion on the desired information, the selected orthogonal conversion being different for each of a plurality of situations, wherein the orthogonal conversion is performed by multiplying a random N.sup.th normal orthogonal matrix, M, formed by giving a random phase rotation to a Walsh vector by using the formula: ##EQU9##wherein e.sup.jz1, e.sup.jz2, . . . e.sup.jzn are random phase rotation components, Z1, Z2 . . . ZN are phase rotation angles, and W.sub.1.sup.T W.sub.2.sup.T. . . W.sub.N.sup.T are transposed Walsh vectors; andtransmitting a signal corresponding to the orthogonally converted information on which the selected orthogonal conversion has been performed.