CONTACTLESS ELECTRONIC COMMUNICATION DEVICE WITH OPTIONAL AUXILIARY POWER SOURCE

摘要

The invention concerns electronic devices communicating by electromagnetic waves without internal power source. The invention consists in using means for connecting an external cell (48) to the contactless electronic communication device (40) via contacts (56, 58) connected to the cell (48) and contacts (36, 38) connected to the electronic processing module contained in the electronic device (40). The invention is applicable to contactless access cards and watches wherewith are associated contactless access electronic devices.