The challenged patent indicates that “it would be desirable if a markup language could be used to provide for the downloading display characteristics of user screens and program guide functionality as plug-ins anytime, without modifying the code of the application.” Id. at 1:45–49.
See generally PO Resp. Having considered the entirety of the evidence, we agree with Petitioner that Wugofski’s computer 110 having control circuitry and a convergence television environment that includes a TV tuner or cable signal decoder teaches the recited set-top box.
Dr. Lippman testifies that “in Wugofski, the broadcaster controls which objects are displayed as part of the user interface, as well as their behavior, by sending a hypertext markup language (HTML) document to the computer 110 via the network.” Ex. 1006 ¶ 99 (citing Ex. 1002, Abstract, 7:39–44, 8:16–41).
Von Herzen, Patent Owner asserts that one of ordinary skill in the art “would understand, however, that Wugofski only allows the user, at best, to adjust the parameter values of the behaviors associated with the display objects.” PO Resp. 17 (citing Ex. 2007 ¶¶ 78–80).
Patent Owner, however, contends that Wugofski’s disclosure is insufficient to teach or suggest the interpreting or the updating limitations because the recited assignment of a second program function requires a new behavior be added to the object.