Patent ID: 6782057
Filing Date: 2004-08-24
Classification: H04L

Abstract:
A method of modulating a radio frequency carrier capable of transmitting a binary information stream made up of first and second binary states comprising:generating a clock signal operating at the fundamental frequency of a carrier frequency to be modulated; clipping said clock signal sufficient to achieve a fifty percent duty cycle resulting in a clipped squarewave clock signal; modulating the clipped squarewave clock signal by the binary information stream by having the lower level of said clipped squarewave clock signal set by the lower clipped level and the higher clipped level of the clipped squarewave clock signal vary with the first and second binary states of the binary information stream creating a modulated clipped squarewave clock signal; smoothing said modulated clipped squarewave clock signal; and, filtering said modulated clipped squarewave clock signal to its base band sine wave component resulting in a modulated carrier frequency signal having an integer number of wavelets suppressed to be transmitted.