Patent ID: 7081980
Filing Date: 2006-07-25
Classification: G01J,H03D

Abstract:
1. A method of detecting and/or processing signal waves which in an article sensitive to the signal waves produce charge carriers which induce a signal current in at least one readout electrode, wherein there are provided at least two modulation electrodes, at least one of which is arranged in spatial proximity with the at least one readout electrode and the other modulation electrode is arranged in spatial proximity either with the same readout electrode or a further readout electrode in such a way that in dependence on the sign of the modulation voltage of the respective modulation electrode the current flowing by way of the associated readout electrode is positive or negative, characterized in that the modulation electrodes are modulated with a voltage amplitude and/or phase relationship which can be freely selected relative to each other, wherein the readout currents produced by the modulation voltages of both modulation electrodes are additively coupled.