OPTICAL AUTHENTICATION DEVICE CONSISTING

Brand	Owner (click to sort)	Address	Description
OPTIKEY	MERCURY MISSION SYSTEMS	50 MINUTEMAN ROAD ANDOVER MA 01810	Optical authentication device consisting of a mass-produced optically encoded mask and a matched optically encoded reference mask located in an optoelectronic reader;OPTICAL KEY;
OPTIKEY	INTELLISENSE SYSTEMS, INC.	21041 S. Western Ave. Torrance CA 90501	Optical authentication device consisting of a mass-produced optically encoded mask and a matched optically encoded reference mask located in an optoelectronic reader;OPTICAL KEY;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method of authenticating a channel authorization using a NAD (Network Access Device) in a combined broadcasting and communication system is provided. The method can process an authorization of a user independently from an AAA (Authentication, Authorization and Accounting) server. The system includes a plurality of STBs (Set Top Boxes) for receiving a broadcasting, an OLT (Optical Line Terminal)/ONU (Optical Network Unit) for transferring a broadcasting stream to the STBs, and the AAA server for a channel authentication. In operation, the NAD determines whether to switch the broadcasting stream to the STBs in the ONU, and the NAD is initialized by receiving and storing authentication information of the channel authorization from the AAA server when booting the NAD. Next, the NAD performs an authentication using the stored authentication information of the channel authorization in accordance with a channel request from the STB and then switches the requested channel when approved. The authentication information is updated and stored in accordance with an update signal of the authentication information of the channel authorization from the AAA server.