Systems and methods for security tag detachment or deactivation

US10325464B1 · kind B1 · utility

Assignee

• Sensormatic Electronics, LLC · US

Inventors

• Steve E. Trivelpiece · Santa Margarita, US
• Craig E. Trivelpiece · Mission Viejo, US
• David Torrecilla · Madrid, ES
• Adam S. Bergman · Boca Raton, US

Key dates

• Filing date: Apr 5, 2018
• Grant date: Jun 18, 2019
• Expiry date: Apr 5, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2209/805
• WIPO field: Control
• WIPO sector: Instruments

Abstract

Systems and methods for operating a security tag. The methods involve: receiving, by the security tag, an authorization code comprising a security tag identifier signed using a cryptographic key of a plurality of cryptographic keys that are respectively assigned to a plurality of security tags; performing operations by the security tag to verify a signature of the authorization code; and performing detach operations or deactivation operations by the security tag, responsive to the signature's verification. The detach operations cause a mechanical detachment of the security tag from an item. The deactivation operations cause a disablement of a response by the security tag to an interrogation signal from a Radio Frequency Identification (“RFID”) system or an Electronic Article Surveillance (“EAS”) system.