Patent ID: 7327815
Filing Date: 2008-02-05
Classification: G06F

Abstract:
1. A method for synchronizing a plurality of digital input signals formed by sampling analog input variables of measuring transducers, wherein the measuring transducers are disposed at various points in an electric power supply system; and wherein the analog input variables are sampled with a dedicated operating clock; the method comprising: encoding each digital input signal using a signal encoder formed by a differentiator forming encoded digital input signals; transmitting each encoded digital input signal from a transmission device via a transmission channel to a receiving device; forming digital auxiliary signals using a signal resampling device by respectively sampling the received digital input signals with a common post-processing clock, which is at least twice as fast as a fastest operating clock; and forming synchronized digital output signals corresponding to the digital input signals by interpolating each digital auxiliary signal using an interpolation filter formed by an integrator.