Invention Application
US20090069661A1 METHOD FOR SEPARATING MULTICHANNEL SIGNALS PRODUCED BY AC AND DC SOURCES FROM ONE ANOTHER
有权
用于分离由其他来源的交流和直流源生成的多通道信号的方法
- Patent Title: METHOD FOR SEPARATING MULTICHANNEL SIGNALS PRODUCED BY AC AND DC SOURCES FROM ONE ANOTHER
- Patent Title (中): 用于分离由其他来源的交流和直流源生成的多通道信号的方法
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Application No.: US10586448Application Date: 2005-01-19
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Publication No.: US20090069661A1Publication Date: 2009-03-12
- Inventor: Samu Taulu , Matti Kajola , Juha Simola
- Applicant: Samu Taulu , Matti Kajola , Juha Simola
- Applicant Address: SE Stockholm
- Assignee: ELEKTA AB (publ)
- Current Assignee: ELEKTA AB (publ)
- Current Assignee Address: SE Stockholm
- International Application: PCT/FI2005/000038 WO 20050119
- Main IPC: A61B5/05
- IPC: A61B5/05 ; G01R33/02
Abstract:
The present invention relates to a novel manner of measuring DC fields using a multi-channel MEG or MKG measuring instrument; and on the other hand, to a manner of eliminating from the measurement result the interference signals caused by the DC currents. The invention combines the monitoring system of a testee's movement and the method for motion correction of the measured signals so that the signals produced by the DC currents of a moving testee's are visible in the final measurement result as a static signal component in a conventional MEG or MKG measurement. In that case, in the measurement, it is not necessary to beforehand prepare oneself for measuring the DC fields.
Public/Granted literature
- US08229540B2 Method for separating multichannel signals produced by AC and DC sources from one another Public/Granted day:2012-07-24
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