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RFID power ramping for tag singulation

  • US 20060176152A1
  • Filed: 02/10/2005
  • Published: 08/10/2006
  • Est. Priority Date: 02/10/2005
  • Status: Active Application
First Claim
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1. A method of power ramping in an RFID reader for tag singulation comprising the steps of:

  • activating the trigger control of said RFID reader for engaging power to begin reading RFID tags;

    transmitting power from said RFID reader at a first power level and obtaining a first read volume and first reading of said RFID tags;

    increasing said transmitting power from said RFID reader to a higher power level for obtaining a larger read volume and reading additional RFID tags within said larger read volume;

    repeating the step of increasing said transmitting power from said RFID reader to a higher power level until detecting a desired RFID tag in a final read volume; and

    deactivating the trigger control of said RFID reader after reading said desired RFID tag.

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