摘要:
A contactless user device for contactless communication with an external reader device includes an antenna loop that at least partially surrounds a hollow ferrite core, the hollow core including a ferrite wall that at least partially surrounds a space without ferrite. A circuit board is located within the space. The circuit board includes a contactless chip that is configured for contactless communication with the external reader device via the antenna.
摘要:
An adapter and methods of using the adapter for communicating a personal electronic device to a smart card reader are disclosed. The adapter comprises a processor, a contact/contactless smartcard chip, an antenna and a power supply unit. The processor is adapted to exchange data with the personal electronic device, wherein that data is modulated on the audio signals. The processor is also adapted to exchange data with the smartcard chip, wherein the smartcard chip is adapted to communicate with the contactless smart card reader via the antenna. A method for enabling a personal electronic device to communicate with a contactless smart card reader via audio signals is also disclosed. The method comprises providing an adapter. The adapter comprises a processor, a contact/contactless smartcard chip, an antenna and a power supply unit. The method also comprises exchanging data between the personal electronic device and the processor.
摘要:
A data transaction card (4) having a substrate (25) supporting a chip module (20) coupled to opposite ends of a coil antenna (11) wound so as to form a substantially integral number of main loops (21) and having a supplementary loop (22) having an active area that is different from an active area of the main loops. In one embodiment, the data transaction card has a substantially rectangular substrate having major (26) and minor (27) edges, which supports a substantially rectangular coil antenna having a major dimension (28) that is substantially equal to a dimension of the major edge of the substrate. The coil antenna is positioned relative to the substrate so that a footprint of the coil antenna does not overlap an area (13) of the substrate that is reserved for embossing data (24) therein.
摘要:
A data transaction device (10) having contact and contactless modes of operation, comprises a semiconductor device (14) for operating in contact and contactless modes in accordance with a respective contact or contactless data communications protocol. A contact field (11) includes contacts (C1, C2, C3, C4, C5, C7, C8) fixedly connected to the semiconductor device (14) for allowing data transmission between the contacts and the semiconductor device in accordance with the contact data communications protocol, whilst a coil antenna (15) allows contactless data transmission between the coil antenna and the semiconductor device, in accordance with the contactless data communications protocol. An antenna interface (16) coupled to the coil antenna, to the semiconductor device and to at least some of the contacts in the contact field is responsive to an electromagnetic field across the coil antenna for effecting contactless data transmission.
摘要:
A self-closing cap (50) for the filling neck of a container, the self-closing cap having integral therewith a smart card (54) having a container coil antenna (52) for communicating with a supply station coil antenna fixed to a supply nozzle when the supply nozzle is inserted into the container through the self-closing cap.
摘要:
A data transaction device having a contactless mode of operation and comprising an antenna coil (15) coupled to a processing unit (14) via an antenna interface (16) for allowing contactless data transmission between the data transaction device and a remote transceiver. A circuit within the antenna interface includes a modulator (45) for modulating a signal transmitted by the remote transceiver and received by the antenna coil with outgoing data generated by the processing unit for transmitting via the antenna coil to the remote transceiver. The circuit further includes a variable loading means (45) connected in series with a load (14, 58) seen by the antenna coil and having a capacitance (57, 59) connected across the load so as to effect a change in impedance of the load seen by the antenna coil thus allowing amplitude and/or phase modulation of said signal without complete interruption thereof and regardless of the magnitude of an external capacitance (59) connected across the load. Preferably, the antenna interface (16) may be customized for different applications and the data transaction device also includes a contact field (11) thus allowing for either contact or contactless communication.