×

Radio-frequency identification system

  • US 9,294,157 B2
  • Filed: 08/20/2007
  • Issued: 03/22/2016
  • Est. Priority Date: 08/20/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A radio-frequency identification system reader comprising:

  • a resonant circuit comprising a plurality of coilsa means for repeatedly driving the resonant circuit with pulses of a periodic signal, the fundamental frequency of the periodic signal being the resonant frequency of the resonant circuit;

    a means for obtaining a tag response signal from the resonant circuit;

    a means for extracting tag information from the tag response signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×