, the Federal Circuit affirmed a decision by Chief Judge Stark of the District of Delaware granting summary judgment of non-infringement to the accused infringer and excluded consideration of source code from a third party chip maker as inadmissible hearsay. Without the excluded source code, the patent owner, Wi-LAN, could not prove infringement against Sharp and Vizio as a matter of law. Background In 2015, Plaintiff Wi-LAN Inc. sued Defendants Sharp Electronics Corporation and Vizio, Inc., accusing Defendants’ digital televisions of infringing two patents. One of those patents claimed methods for displaying interlaced video on a non-interlaced monitor. The functionality implicated in Wi-LAN’s infringement accusations was purportedly performed by chips in the televisions known as System-on-Chips (SoCs) that were supplied by third-party chip makers.