Patent ID: 6827278
Filing Date: 2004-12-07
Classification: G06K

Abstract:
A data carrier comprising:a data processing unit having a plurality of asynchronously operating logic components; at least one contactless interface configured to enable coupling to a read/write apparatus in order to receive electrical energy for operation of the data processing unit; and a supply voltage generator configured to receive the electrical energy from the contactless interface and to distribute the received electrical energy to the plurality of asynchronous operating logic components, the supply voltage generator configured to distribute different magnitudes of energy to different asynchronous operating logic components to adjust speed of operation of the asynchronous operating logic component, wherein selected asynchronously operating logic components are activated in response to a request signal in a coordinated manner using the received electrical energy, and wherein the supply voltage generator adjusts the magnitude of the energy distributed to each asynchronous operating logic component such that operations performed by the plurality of asynchronous operating logic components are completed within required time periods and the combined energy consumed by all the asynchronous operating logic components does not exceed the received electrical energy.