×

Loss prevention system

  • US 20050134459A1
  • Filed: 12/17/2003
  • Published: 06/23/2005
  • Est. Priority Date: 12/17/2003
  • Status: Active Grant
First Claim
Patent Images

1. A monitor for a loss prevention system, comprising:

  • an RF communication circuit adapted for communication with at least one radio frequency identification tag;

    a control circuit having a microprocessor and a memory, the control circuit being electrically connected to the RF communication circuit;

    an alarm electrically connected to the microcomputer; and

    a computer readable program code stored in the memory and executing under control of the microprocessor, the program code having;

    means for acquiring the identification tag by storing a unique identifier associated with, the identification tag in the memory and associating the identifier with an alias;

    means for dropping the identification tag by deleting the unique identifier associated with the identification tag from the memory;

    means for operating the RF communication circuit to interrogate the identification tag; and

    means for causing the alarm to activate when the identification tag is out of range of the RF communication circuit.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×