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Method and system for signal decomposition, analysis and reconstruction
专利权人:
Vios Medical; Inc.
发明人:
Carlos A. Ricci,Vladimir V. Kovtun
申请号:
US15676891
公开号:
US10367476B2
申请日:
2017.08.14
申请国别(地区):
US
年份:
2019
代理人:
摘要:
A system and method for representing quasi-periodic waveforms, for example, representing a plurality of limited decompositions of the quasi-periodic waveform. Each decomposition includes a first and second amplitude value and at least one time value. In some embodiments, each of the decompositions is phase adjusted such that the arithmetic sum of the plurality of limited decompositions reconstructs the quasi-periodic waveform. Data-structure attributes are created and used to reconstruct the quasi-periodic waveform. Features of the quasi-periodic wave are tracked using pattern-recognition techniques. The fundamental rate of the signal (e.g., heartbeat) can vary widely, for example by a factor of 2-3 or more from the lowest to highest frequency. To get quarter-phase representations of a component (e.g., lowest frequency “rate” component) that varies over time (by a factor of two to three) many overlapping filters use bandpass and overlap parameters that allow tracking the component's frequency version on changing quarter-phase basis.
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中国工程科技知识中心
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