×

TERMINAL FOR LINE-OF-SIGHT RFID TAG READING

  • US 20120075076A1
  • Filed: 09/28/2010
  • Published: 03/29/2012
  • Est. Priority Date: 09/28/2010
  • Status: Active Grant
First Claim
Patent Images

1. A terminal for use in determining which of one or more candidate radio frequency identification (RFID) tags having unique data stored thereon is a target RFID tag within a line-of-sight of the terminal, the terminal comprising:

  • one or more processors;

    a computer readable storage medium;

    an image sensor;

    an RFID reading device;

    first program instructions to direct the image sensor to capture one or more frames of image data within the line-of-sight of the terminal;

    second program instructions to determine, from the one or more frames of image data, whether an object is present in the line-of-sight of the terminal;

    third program instructions to direct the RFID reading device to perform a number of reads of the one or more candidate RFID tags in response to determining that an object is present in the line-of-sight of the terminal;

    fourth program instructions to calculate an accumulated received signal strength indication (RSSI) of each of the one or more candidate RFID tags; and

    fifth program instructions to determine the target RFID tag from a highest accumulated RSSI;

    wherein the first, second, third, fourth, and fifth program instructions are stored on the computer readable storage medium for execution by the one or more processors.

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