Patent ID: 7948413
Filing Date: 2011-05-24
Classification: H03M

Abstract:
1. Method for analog-to-digital signal conversion with asynchronous Sigma-Delta modulation comprising modulation of an analog signal by means of an asynchronous Sigma-Delta modulator, counting periods of a reference clock during each pulse of a previously obtained square wave and making a digital word available, wherein the square wave (z(t)) obtained as a result of the modulation in the asynchronous Sigma-Delta modulator (ASDM) undergoes conversion by counting periods of the reference clock (RG) during subsequent pulses of the square wave (z(t)) using a counting module (CTM), and wherein subsequently, each digital word obtained representing the counted number of periods (T wherein subsequently, the given digital word representing the given pulse of the square wave (z(t)) is serially transmitted to a computer or to a communication network, and a cycle a described is repeated for the subsequent pulse of the square wave (z(t)).