(Reuters) – A federal judge ordered Marvell Technology Group Ltd to pay nearly $1.54 billion for infringing two hard disk drive patents held by Carnegie Mellon University, nearly one-third more than a jury had previously awarded. In a decision late Monday, U.S. District Judge Nora Barry Fischer in Pittsburgh, where Carnegie Mellon is based, said “enhanced damages” were justified because the university presented enough credible evidence to establish that Marvell through “known willful infringement” deliberately copied its patents. Judge Fischer said Marvell knew of the patents for at least seven years prior to Carnegie Mellon’s March 2009 lawsuit.