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Data communications system, information processing terminal, IC card, reader/writer, and program

  • US 7,891,544 B2
  • Filed: 05/31/2007
  • Issued: 02/22/2011
  • Est. Priority Date: 06/02/2006
  • Status: Expired due to Fees
First Claim
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1. A data communications system configured to execute data communication between three parties of a reader/writer, an integrated circuit card wirelessly communicable with said reader/writer in a non-contact manner, and an information processing terminal connected to said integrated circuit card via a wired interface, said data communications system comprising:

  • said reader/writer havinga read/write wireless control block configured to output a signal carrier and control wireless communication with said integrated circuit card;

    said integrated circuit card havingan integrated circuit card wireless control block configured to start and control wireless communication with said reader/writer in accordance with detection of said signal carrier outputted from said read/write wireless control block; and

    said information processing terminal havinga request acceptance block configured to accept a data transfer request from a user,a data storage block configured to store data, anda data transmission block, connected to said integrated circuit card wireless control block via a wired interface, configured to transmit a data transfer request signal and data in said data storage block to said integrated circuit card wireless control block in response to a data transfer request from said request acceptance block;

    wherein,upon reception of a data transfer request signal and data from said data transmission block, said integrated circuit card wireless control block switches a communication mode of said integrated circuit card wireless control block to a continuous communication mode in which data can be continuously transmitted or received and transmits said data transfer request signal and said data to said read/write wireless control block without waiting for a command from said read/write wireless control block; and

    said read/write wireless control block switches said communication mode to said continuous communication mode by use of said data transfer request signal from said integrated circuit card wireless control block as a trigger and receives said data from said integrated circuit card wireless control block.

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