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Device and method for supplying a data transfer unit with energy

  • US 7,571,853 B2
  • Filed: 05/13/2005
  • Issued: 08/11/2009
  • Est. Priority Date: 11/19/2002
  • Status: Active Grant
First Claim
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1. A device for supplying a data transfer unit with energy, comprising:

  • an energy supply input unit configured to generate a first energy signal, which is fed contactlessly by means of an electric field, and to supply the first energy signal to the data transfer unit;

    an energy store unit configured to supply the data transfer unit with a second energy signal supplementing the first energy signal;

    a switch unit configured to switch the second energy signal to the data transfer unit; and

    a control unit configured to control the switch to connect the energy store unit to the data transfer unit via the switch unit, if the first energy signal voltage falls below a tolerance value.

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