Invention Grant
US07973660B2 Electronic article surveillance deactivator with multiple label detection and method thereof 有权
具有多种标签检测功能的电子物品监视停用剂及其方法

Electronic article surveillance deactivator with multiple label detection and method thereof
Abstract:
A method and system for preventing simultaneous deactivation of multiple electronic article surveillance (“EAS”) tags. An RF pulse is transmitted within an EAS interrogation zone to induce a response from at least one EAS tag placed within the interrogation zone. The response of the at least one EAS tag is received. A presence of more than one EAS tag is determined by evaluating a frequency response curve corresponding to the response.
Information query
Patent Agency Ranking
0/0