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Judge Stark construes claim terms and denies motions for summary judgment in the most recent dispute between between Power Integrations and Fairchild Semiconductor

In Power Integrations, Inc. v. Fairchild Semiconductor Int’l, Inc., et al., C.A. No. 08-309-LPS (D. Del. Mar. 13, 2012), Judge Stark construed the following claim terms of the patents-in-suit:

“a feedback circuit coupled to receive a feedback signal”

“a control circuit coupled to generate a control signal in response to an output of the comparator and in response to an output of the feedback circuit”

“an oscillator for generating a signal having a switching frequency, the oscillator having a control input for varying the switching frequency”

“a controller to generate the switching signal in response to a first feedback signal associated with a voltage control loop and a second feedback signal associated with a current control loop in the primary-side of the transformer”

 

Judge Stark also denied plaintiff’s motion for summary judgment of infringement and defendants’ motions for summary judgment of non-infringement and invalidity because the Court concluded that there were genuine issues of material fact as to each motion.


Power Integrations, Inc. v. Fairchild Semiconductor Int’l, Inc., et al., C.A. No. 08-309-LPS (D. Del. Mar. …

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