Patent ID: 6717507
Filing Date: 2004-04-06
Classification: G07C,G11B

Abstract:
A radio frequency tag apparatus, comprising:a passive radio frequency transponder, including, an antenna, an integrated circuit configured to receive data associated with signals received at said antenna from a radio frequency transceiver and to return to the transceiver via said antenna a signal comprising an access parameter relating to a piece of limited access electronic media content, and a memory connected to said integrated circuit and operative to provide storage and retrieval of data relating to said access parameter and a control parameter, said access parameter and said control parameter modified by playing said piece of limited access electronic media content and saved to said memory after playing said piece of limited access electronic media content; wherein access to the piece of limited access electronic media content is limited and access to the limited access electronic media content is provided to an authorized person by providing said authorized person with a physical article comprising the passive radio frequency transponder.