Patent ID: 8576077

Claim:
A system for protecting at least one item to be secured, the system comprising: at least one transponder device including at least one electronic tag, being assigned to the item, and at least one monitoring device being based on short range radio frequency communication, with at least one transmitting unit for transmitting and/or for broadcasting and/or for multicasting at least one request to the transponder device, wherein the transponder device comprises at least one processing unit for determining the number of monitoring devices and: being arranged within the receiving and/or transmitting range of the transponder device, and having transmitted and/or having broadcasted and/or having multicasted its respective request to the transponder device, within a certain time interval, and wherein the transponder device is configured for transmitting and/or for broadcasting and/or for multicasting at least one response comprising the determined number of monitoring devices to the respective monitoring device having transmitted and/or having broadcasted and/or having multicasted its respective request to the transponder device.