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IP News

By Howard J. Shire and Wyatt Delfino
November 02, 2013

Federal Circuit Upholds Permanent Injunction In 'Design Win' Market

On Oct. 7, 2013, a Federal Circuit panel of Judges Rader, Lourie, and Wallach, issued its unanimous opinion, authored by Judge Rader, in Broadcom Corp. v. Emulex Corp., No. 2012-1309. In it, the Federal Circuit affirmed the district court's finding that high-speed broadband controller chips sold by Emulex infringe Broadcom's patent, and upheld the district court's permanent injunction with “a well-crafted sunset period.” Slip Op. at 2.

According to the Federal Circuit, Broadcom's patent, U.S. Patent No. 7,058,150 (“the '150 patent”), solved the problem of sampling high data rate analog signals to extract the data they contain, by using “a phase interpolator to perform high speed sampling of a signal using a technique known as clock and data recovery.” Id. at 4. The invention also solves the problem of interference caused by multiple oscillators on an IC chip, by using a single “master oscillator in a multiple receiver environment.” Id. (internal quotations omitted).

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