| 摘要 |
A method for acquiring electrical signals from a living subject, including injecting, via an injection electrode attached to the subject, a known calibration signal to the subject and measuring respective levels of output signals generated at input electrodes attached to the subject in response to the calibration signal. The method further includes deriving respective weighting factors for the input electrodes in response to the respective levels, and applying the respective weighting factors to physiological signals acquired by the input electrodes, so as to generate respective corrected physiological signals. REPLACEMENT SHEET FIG. 3 START ATTACH ELECTRODES TO SUBJECT 100 GENERATE SIGNALS AT PRE SELECTED FREQUENCIES TO FORM CALIBRATION SIGNALS. INJECT CALIBRATION SIGNALS 102 AT INJECTION ELECTRODE ACQUIRE SIGNALS AT INPUT ELECTRODES. ANALYZE ACQUIRED SIGNALS TO FIND FREQUENCY, AMPLITUDE, AND PHASE 104 COMPARE ACQUIRED SIGNALS AT INPUT ELECTRODES WITH CALIBRATION SIGNALS TO FORM CORRECTION VECTOR FOR EACH 106 INPUT ELECTRODE FORMULATE WEIGHTING FACTORS FOR EACH INPUT ELECTRODE FROM CORRECTION VECTORS FOR EACH INPUT ELECTRODE APPLY WEIGHTING FACTORS TO UNCORRECTED PHYSIOLOGICAL SIGNAL RECEIVED AT 110 THE ELECTRODE TO GENERATE CORRECTED PHYSIOLOGICAL SIGNAL :END |
