| 摘要 |
The invention relates to a resonant label ( 10 ) which is designed to be directly applied to a data carrier ( 20 ) that is provided with a metallisation, such as a CD, DVD or an MO disc. To facilitate and/or improve the electromagnetic remote identification of said label using a frequency in the RF range, the label is equipped with an outer coil ( 12 ) that forms part of an electric resonant circuit and runs essentially around the outer edge of the data carrier ( 20 ). The resonant label ( 10 ) is preferably configured on a transparent substrate, so that it blends in with the data carrier ( 20 ) and permits an impression on the latter ( 20 ) to remain visible. The resonant label ( 10 ) can either be used as an entity in itself or in a particularly advantageous manner as a type of wave collector or booster for a smaller RFID label ( 30 ) that is located on the same data carrier. The label thus permits the remote identification of the RFID label ( 30 ), even if the data carrier ( 20 ) is completely metallised. Finally the resonant label can also be provided with a semiconductor chip and configured as an RFID.
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