Patent ID: 6721912
Filing Date: 2004-04-13
Classification: G01R

Abstract:
A module for a data carrier adapted to communicate with a communication station, comprising:an integrated circuit device a transmission coils, which is connected to the module in an electrically conductive manner; test means that are adapted to test the module during a test operation, wherein the test means are also adapted to generate a test-result signal in dependence on a test result; indication means, which are electrically switchable between at least two indication modes, and which are switchable to a given indication mode in dependence on the test-result signal, wherein the indication means are arranged on the module and are formed by display means which are switchable to a given display mode in dependence on the test-result signal, and the display means include an electrochemical substance that is switchable to a given color mode in dependence on the test-result signal.