RFID security device for optical disc

Details RFID security device for optical disc RFID security device for optical disc

2007-09-25

2007-09-25

Zeender, F. Ryan (Department: 3627)

Data processing: financial, business practice, management, or co

Automated electrical financial or business practice or...

Including point of sale terminal or electronic cash register

C369S047360, C369S283000, C369S275400, C369S275500

Reexamination Certificate

active

10241924

ABSTRACT:
An optical disc has a security feature in the form of an RFID tag that communicates with a voltage controlled optical modifier layer in the optical disc. In the presence of an interrogation signal, the RFID tag allows the optical disc to be used normally by outputting a voltage to the optical modifier layer. In the absence of an interrogation signal, the optical modifier layer prevents a laser from reading from or writing on the optical disc. Other embodiments are also disclosed.

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