Portable electronic security key for electronic article surveillance device

Abstract

An electronic key capable of reinitializing or resetting a security disabled electronic article surveillance (EAS) device is provided. The electronic key can be a secure, portable, and battery powered for initializing a secured EAS system's security protocol to factory default state, or to another preselected state. The key has its own set of security protocols to prevent unauthorized use and can easily be reprogrammed for a wide variety of other functions including, but not limited to, firmware upgrading, diagnostic testing, and the like. The key can be connected to the programming port of an EAS device and perform a preset reprogramming operation, resetting activated security features. The key could be purchased for customer use, and would be secured by preselecting the total number of uses, such as one use. The one-time use would begin once the key is activated. Activation of the key is also uniquely controlled to prevent its misuse. In one embodiment, the electronic key must detect the interrogation field of a properly functioning EAS exit system prior to becoming enabled. The allowed usage can be limited by time, the number of units reprogrammed, or a combination of both. Once the key has been activated for its pre-selected number of uses and shuts off, only qualified service personnel can reset the electronic key function for further uses.