Demodulation technique and modulation technique of the plurality of sine waves and one employing a stop and start data word of the peak of the carrier wave and the zero carrier

摘要

Method for detecting (10) the waveform of substantially sinusoidal digital data encoded with one of the second value and the first value in the phase angle θ _n which are selected, each phase In phase angles lying outside of regions having a range of Δθ starting from angle θ _n, to produce a waveform having an amplitude Y defined by a first function is Y = sinθ, the value of the first to produce a waveform having an amplitude Y defined by a function of the first in phase angle located inside of these areas having a range of Δθ starting from the phase angle θ _n to be encoded data , and is defined by a second function different from the Y = sinθ the phase angle is located on the inside of these areas having a range of Δθ associated with each phase angle θ _n to be encoded data of the value of the second and includes the generating the waveform having an amplitude Y that.