Systems and methods for filtering a signal using a continuous wavelet transform

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United States of America Patent

PATENT NO 8385675
APP PUB NO 20100014725A1
SERIAL NO

12249100

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Abstract

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According to embodiments, systems and methods for reducing noise in a signal are provided. A signal may be transformed using a continuous wavelet transform and a corresponding scalogram may be generated. Regions of noise may be identified from the resulting scalogram. These regions may be masked by, for example, removing, altering, or appropriately tagging the regions. After masking the regions of noise, the scalogram may be converted to a filtered signal using an inverse wavelet transform. Alternatively or additionally, desirable regions of non-noise may instead be identified from the resulting scalogram. These desirable regions may be extracted from the scalogram and an inverse wavelet transform performed on the extracted regions in order to generate a filtered signal.

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Patent Owner(s)

Patent OwnerAddress
NELLCOR PURITAN BENNETT IRELANDMICHAEL COLLINS ROAD MERVUE GALWAY IRELAND

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Addison, Paul Stanley Edinburgh, GB 177 3702
Watson, James Nicholas Dunfermline, GB 93 2059

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