Abstract: A card comprises electrical contacts (32, 34) for communicating data in the form of a differential accordance with a universal serial bus (USB) standard. The card can be inserted in a card reader having complementary electrical contacts (16). The card has an insertion edge (A) which traverses the complementary electrical contacts when the card is inserted in the card reader in a correct fashion. The card comprises an electrical contact for receiving a power supply voltage which (22) electrical contact (22) is closer to the insertion edge than either electrical contact of the pair of electrical contacts (32, 34) for communicating data in the form a differential signal in accordance the USB standard.

Abstract: A card comprises electrical contacts (18, 22, 32, 34) for communicating in accordance with a universal serial bus standard. The card can be inserted in a card reader having complementary electrical contacts (16). The card has an insertion edge (A) which traverses the complementary A electrical contacts (16) when the card is inserted in the card reader in a correct fashion. The card comprises an electrical contact (22) for receiving a power supply voltage which electrical contact (22) is closer to the insertion edge (A) than any electrical contact for communicating data in accordance with the universal serial bus standard (32, 34).

Abstract: An electronic circuit for an electronic memory card that is capable, without electrical contact, of exchanging information with a reader device. The electronic circuit includes a coupling antenna for communicating with the reader device, and a semiconductor die connected to the antenna. On a support sheet made of plastics material are mounted a coupling antenna provided with two electrical connection terminals; and attached to the electrical connection terminals, a semiconductor die having protruding contacts. A whole intermediate sheet, i.e. one without an opening formed therein, covers the semiconductor die and the support sheet. An outer sheet is placed on the intermediate sheet. The sheets and the semiconductor die are laminated to form a contactless card under heat and pressure such that the semiconductor die becomes embedded into the intermediate sheet.

Abstract: Apparatus for electronically transferring information between an electronic component and a reader. The electronic component is disposed on a substrate of a portable object, which substrate also carries a first antenna connected to the component. The reader includes a second antenna. The electronic information transfer is performed by inductive coupling between the first and second antennas, without electrical contact between the component and the reader. The reader includes a marker device suitable for writing a mark on the substrate in the event of the portable object being placed in the immediate proximity of the reader, and after information transfer is effected.