Invention Grant
- Patent Title: Adaptive filtering for more reliably determining physiological parameters
- Patent Title (中): 自适应滤波更可靠地确定生理参数
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Application No.: US12280161Application Date: 2007-02-06
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Publication No.: US08676542B2Publication Date: 2014-03-18
- Inventor: Andreas Tobola , Ulrich Vogl , Hans-Joachim Moersdorf
- Applicant: Andreas Tobola , Ulrich Vogl , Hans-Joachim Moersdorf
- Applicant Address: DE Munich
- Assignee: Fraunhofer-Gesellschaft zur Foederung der Angewandten Forshung e.V.
- Current Assignee: Fraunhofer-Gesellschaft zur Foederung der Angewandten Forshung e.V.
- Current Assignee Address: DE Munich
- Agency: Perkins Coie LLP
- Agent Michael A. Glenn
- Priority: DE102006007879 20060220; DE102006022055 20060511
- International Application: PCT/EP2007/001003 WO 20070206
- International Announcement: WO2007/096054 WO 20070830
- Main IPC: H03F1/26
- IPC: H03F1/26 ; H04B15/00 ; A61B5/00
Abstract:
Apparatus for reducing an interference portion in a time-discrete signal further including a useful portion, including a first provider for providing the time-discrete signal including the interference portion and the useful portion; a second provider for providing a first time-discrete reference signal including a first interference portion, and a second time-discrete reference signal including a second interference portion, the second interference portion being shifted in phase relative to the first interference portion. The apparatus further includes a subtractor for generating a differential signal from the two reference signals, the differential signal including a frequency component caused by the first and second interference portions; and a manipulator for manipulating the time-discrete signal on the basis of the differential signal such that in a manipulated time-discrete signal the frequency component is reduced.
Public/Granted literature
- US20090216499A1 ADAPTIVE FILTERING FOR MORE RELIABLY DETERMINING PHYSIOLOGICAL PARAMETERS Public/Granted day:2009-08-27
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