Patent ID: 6104328
Filing Date: 2000-08-15
Classification: G01D

Abstract:
A converter for determining a phase difference .THETA. between a first signal and a second signal, the converter comprising:pulse-width modulation means for receiving the first signal and the second signal, for determining a logic level first signal from the first signal and a logic level second signal from the second signal, and for determining a logic level pulse-width modulated signal from the logic level first signal and the logic level second signal, the logic level pulse-width modulated signal being linearly proportional to the phase difference .THETA.; andlinear representation means for receiving the logic level pulse-width modulated signal from the pulse-width modulation means, for producing a pulse-width modulated waveform from the pulse-width modulated signal, and for producing a linear representation signal from the pulse-width modulated waveform signal, the linear representation signal being linearly proportional to the phase difference .THETA..