| US 7,477,923 B2 | ||
| Exchangeable module for additional functionality | ||
| Magnus Wallmark, Göteborg (Sweden); and Mattias Jonsson, Göteborg (Sweden) | ||
| Assigned to Telefonaktiebolaget LM Ericsson (publ), Stockholm (Sweden) | ||
| Appl. No. 10/582,490 PCT Filed Dec. 18, 2003, PCT No. PCT/SE03/02018 § 371(c)(1), (2), (4) Date Apr. 10, 2007, PCT Pub. No. WO2005/060218, PCT Pub. Date Jun. 30, 2005. |
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| Prior Publication US 2007/0247136 A1, Oct. 25, 2007 | ||
| Int. Cl. H04B 1/38 (2006.01) | ||
| U.S. Cl. 455—572 [455/127.1; 455/343.1; 713/189; 713/192; 713/193] | 22 Claims |
| 1. An exchangeable power-supplying unit arranged to supply electric power to a device, said exchangeable power-supplying unit
comprising:
at least one processing unit arranged to pre-process information and to communicate said pre-processed information to said
device for providing said device with at least one additional function; and
a cryptographic circuit for coding or decoding said pre-processed information.
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