Portable data carrier and method for the operation of a...

Details Portable data carrier and method for the operation of a... Portable data carrier and method for the operation of a...

2011-03-15

2011-03-15

Hess, Daniel A (Department: 2876)

Registers

Records

Conductive

C235S487000

Reexamination Certificate

active

07905420

ABSTRACT:
The invention relates to a portable data carrier (1) with an electronic circuit (13) for storing and/or processing data, and an oscillating circuit (29, 30, 31) for contactless communication and/or energy transmission. The inventive portable data carrier (1) is characterized in that a control device (30, 31), which is influenceable from the outside, is provided to change the resonant frequency (fres) of the oscillating circuit (29, 30, 31) between a first frequency range and a second frequency range.

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Search Report of German Patent and Trademark Office relating to German Patent Application No. 10 2005 020 101.6, Oct. 27, 2006.

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