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US 7,125,381 B2Granted
Method of correcting for phase error induced by a down sampling routine
AssigneeGE Medical Systems Information Technologies, Inc.
InventorJohn H. Radeztsky
Life of this patent
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Abstract
A method and apparatus of correcting a data signal sampled at a first rate to a data signal displayed on a video monitor at a second rate is claimed. A data signal is received at a first rate. The data signal is separated into data windows. The minimum and maximum values and positions of data points in data windows are identified relative to a reference, and displayed on a video monitor.
Claims8
An apparatus comprising:
- an input for receiving a first data signal sampled at a first rate, the first data signal including physiological data of a patient;
- and
- a converter configured for sampling the first data signal at a second rate to generate therefrom a second data signal having data points such that the position of the data points relative to one another is approximately the same position as the data points had relative to one another in the first data signal, the converter further configured to calculate a phase error for each data point included in the second data signal.
Dependencies are inferred from the claim text.