| US 7,571,853 B2 | ||
| Device and method for supplying a data transfer unit with energy | ||
| Thomas Jean Ludovic Baglin, Rueil (France); and Albert Missoni, Graz (Austria) | ||
| Assigned to Infineon Technologies AG, (Germany) | ||
| Filed on May 13, 2005, as Appl. No. 11/129,068. | ||
| Application 11/129068 is a continuation of application No. PCT/DE03/03750, filed on Nov. 12, 2003. | ||
| Claims priority of application No. 102 53 920 (DE), filed on Nov. 19, 2002. | ||
| Prior Publication US 2005/0252972 A1, Nov. 17, 2005 | ||
| Int. Cl. G06K 7/08 (2006.01) | ||
| U.S. Cl. 235—451 [235/492] | 27 Claims |
| 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.
|