Contact-free integrated circuit reader

Contact-free integrated circuit reader

CN
  • CN 1,470,038 A
  • Filed: 10/05/2001
  • Published: 01/21/2004
  • Est. Priority Date: 10/16/2000
  • Status: Active Application
First Claim
Patent Images

1. The induction coupling data send-receive equipment (RD1), described equipment (RD1) comprise antenna circuit (LCR1) and be used to carry the device of alternating signal (S1) (OSC1, MDC1), this alternating signal is used for the excitation antenna circuit,It is characterized in that, described equipment (RD1) comprises the device (MP1 that is used to simulate the contactless integrated circuit running, PGP1, LG, MDC1), these devices are arranged for, in the time will launching data, apply load modulation signal (SX2) with two states to antenna circuit (LCR1), this load modulation signal energy disturbance is by the magnetic field (FLD2) of contact-free integrated circuit reader (RD2) emission, and can be detected by this reader (RD2), just look like it be a kind of load modulation signal (SX2 '"'"') by contactless integrated circuit emission.

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