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Magistrate Judge Thynge construes claim terms relating to pulse oximetry.

Magistrate Judge Mary Pat Thynge recently issued a report recommending constructions for 27 claim terms across eight patents relating to pulse oximetry, which “allows for non-invasive measurement of the oxygen levels in a medical patient’s hemoglobin.” Masimo Corp. v. Philips Electronics North America Corp., C.A. Nos. 09-080-LPS-MPT, 11-742-LPS-MPT (D. Del. Aug. 29, 2013). The following claim terms were construed:

“scan of a plurality of possible values for said physiological parameter”;
“said scan”;
“analysis to determine which of the plurality of possible oxygen saturation values corresponds to the oxygen saturation of the pulsing blood”;
“calculating a plurality of ratios of values of the transformed first signal to corresponding values of the transformed second signal”;
“potential of said physiological parameter”;
“said physiological parameter”;
“determination of confidence in the accuracy of physiological signals”;
“signal confidence determination”;
“confidence measurement”;
“determination of signal confidence”;
“based upon at least two alternative methods of processing the sensed physiological signals from at least one of the first and second wavelengths”;
“based upon at least two alternative methods of processing the physiological signals”;
“based upon at least two different methods of processing the intensity signals”;
“based upon at least two alternative methods of processing the sensed physiological signals from at least one of the first and second wavelengths and the signals corresponding to ambient light”;
“adjustably smooth the plurality of resulting values indicative of the at least one physiological characteristic”;
“adjustably smooth the plurality of values”;
“adjustably smoothing the plurality of values”;
“speed up the adjustable smoothing”;
“the smoothing filter is sped up”;
“slow down the adjustable smoothing”;
“first inactive time period”;
“second inactive time period”;
“second time where it is responsive to said ambient light”;
“inactive portions of a drive cycle where none of said plurality of light sources are active”;
“docking station . . . configured to mate with the portable physiological measurement device”;
“patient monitoring system”; and
“concentration”.

Masimo Corp. v. Philips Electronics North America Corp., C.A. Nos. 09-080-LPS-MPT, 11-742-LPS-MPT (D. Del….

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