Portable data carrier and method for the operation of a portable data carrier
resThe invention relates to a portable data carrier with an electronic circuit for storing and/or processing data, and an oscillating circuit for contactless communication and/or energy transmission. The inventive portable data carrier is characterized in that a control device, which is influenceabl...
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| Format | Patent |
| Language | English |
| Published |
15.03.2011
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| Online Access | Get full text |
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| Summary: | resThe invention relates to a portable data carrier with an electronic circuit for storing and/or processing data, and an oscillating circuit for contactless communication and/or energy transmission. The inventive portable data carrier is characterized in that a control device, which is influenceable from the outside, is provided to change the resonant frequency (f) of the oscillating circuit between a first frequency range and a second frequency range. |
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