| 摘要 |
PURPOSE:To perform accurate detection of an R-wave so as to improve analysing precision by providing a first selecting part to select one signal from signals from an input amplifying part and an R-wave detecting part to a QRS signal from a second selecting part. CONSTITUTION:An electrocardiogram signal from each induction part of a sample is amplified by input amplifying parts 1A-1N. From outputs therefrom, an output signal from, for example, the input amplifying part 1A, is selected by a first selecting part 2A through indication from a central processing unit 5. The selected signal is converted into a digital signal by means of an S/D converting part 3 to store it in the central processing part 5. Through indication from the central processing unit 5, a signal from the input amplifying part 1B is selected by the first selecting part 2A and converted into a digital signal by the A/D converting part 3 to store it in the central processing unit 5. As noted above, signals from all the induction portions are converted into digital signals to be stored in the central processing unit 5. Through indication from the central processing unit 5, one input amplifying part is selected from the input amplifying parts 1A-1N by a second selecting part 2B, and by means of a signal therefrom, a QRS part is detected by an R-wave detecting part 4. |
