Patent ID: 7319843
Filing Date: 2008-01-15
Classification: G06K

Abstract:
1. A portable radio-communication device comprising at least: a display for displaying data, a radio transmission/reception unit for communicating over a radio-communication network using a radio-communication signal having a first frequency, and for transmitting a powering signal to a contactless chip associated with a main data carrier and for receiving a signal returned by said contactless chip, said powering signal providing power to said contactless chip and said returned signal carrying chip data relating to said main data carrier, a reading and/or writing unit for reading and/or writing data on said main data carrier, adaptation means for adapting the first frequency to an operating frequency of said contactless chip, so as to generate said powering signal, the first frequency being higher than the operating frequency of said contactless chip, modulation means for modulating said powering signal with device data so as to transmit said device data to said contactless chip, said powering signal providing power and said device data to said contactless chip, processing means for processing said chip data so as to execute at least one of the following actions: a) displaying said chip data, b) writing said chip data on said main data carrier, and c) checking said chip data to authorize or deny reading or writing on said main data carrier.