"The U.S. Court of Appeals for the Federal Circuit (CAFC) on Wednesday upheld a Patent Trial and Appeal Board (PTAB) ruling that certain claims of Viasat Inc.'s data error correction patent are unpatentable as obvious. The opinion was authored by Judge Bryson. Western Digital Technologies, Inc. filed for inter partes review (IPR) of several claims of U.S. Patent No. 8,966,347 and the PTAB held all of the challenged claims unpatentable for obviousness."
"Viasat said that Claim 13 "requires that the 'decoder' both 'retrieve the encoded data' and 'correct errors'" while in Diggs, "the Controller retrieves the encoded data, while the decoder...is 'presented with the data already retrieved from flash by the controller.'" This represents a "fundamental structural distinction between the architecture of Diggs and the architecture of claim 13," according to Viasat."
The Federal Circuit affirmed the PTAB's finding that several claims of U.S. Patent No. 8,966,347 are unpatentable as obvious. Western Digital initiated an inter partes review challenging the patent claims, and the Board concluded differences between the claims and the Diggs prior art were semantic rather than substantive. Viasat appealed focusing on Claim 13, arguing a structural distinction between a decoder that both retrieves encoded data and corrects errors and Diggs' controller/decoder arrangement. The CAFC found substantial evidence that Diggs' controller performed the claimed decoder functions and affirmed the Board's obviousness determination.
Read at IPWatchdog.com | Patents & Intellectual Property Law
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