Identification or smart card system, correlator circuit and synchronisation circuit suitable for use in such a system.

摘要

A data detector for a differential biphase modulated signal, in particular for identification systems. The invention is based on the solution given by the stochastic detection theory, however, with an adjustment such that the realisation is simplified. Also provided is an adequate synchronisation circuit. The entire data detector circuit can be realized as an algorithm in a digital signal processor. <IMAGE>