Patent ID: 7847694
Filing Date: 2010-12-07
Classification: G07C

Abstract:
1. An electronic tag attached to an object which transmits information stored therein through a predetermined frequency band of a signal, comprising privacy level number information, the electronic tag comprising: a tag ID region containing recognition information distinguishing the electronic tag from other electronic tags; and a personal privacy level number region containing a personal information protection level by using a level number designating a personal privacy level number of privacy information, relating to the electronic tag's attached object, wherein the personal information protection level number is transmitted over the predetermined wireless frequency band and wired network which is able to transport the personal information protection level number securely to a privacy protection apparatus that determines how much privacy information to provide based on the personal privacy level number information determined by an owner of the object, wherein each time information is requested from the electronic tag attached to the object, the owner of the object is informed of the request.