| 摘要 |
The present invention concerns a peripheral display device for a portable contactless object such as a smart card (10) enabling information associated with the use of this portable object to be displayed. This peripheral device includes at least one chip, a display means (16) and a means for receiving energy and information (18), not connected by an ohmic contact to the portable object. This receiving means is a flat coil which plays the role of the secondary of a transformer, the primary of which is formed by the antenna (14) of the portable object, when the latter receives energy and information from a portable object reader via electromagnetic coupling.
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