Patent ID: 8981900
Filing Date: 2015-03-17
Classification: G06K

Abstract:
1. A method for releasing a transaction between a portable data carrier and an end device, the method comprising the steps: a) bringing the portable data carrier into an electromagnetic field generated by the end device and drawing power by the data carrier from the electromagnetic field for the power supply of the data carrier, b) exciting the portable data carrier by mechanical oscillation generated by the end device, wherein the end device generates linear, circular, or a combination of linear and circular mechanical oscillations and mechanically excites the portable data carrier by the linear, circular, or the combination of linear and circular mechanical oscillations, c) capturing the mechanical oscillation in the portable data carrier by means of an acceleration sensor, d) evaluating an output signal of the acceleration sensor with regard to characteristic properties of the mechanical oscillation, and e) releasing the transaction by the portable data carrier as soon as a characteristic property of the oscillation has been recognized through the evaluation of the output signal.