| 摘要 |
PURPOSE: To obtain real-time ECG signals removed of baseline drifting, by adding ECG signals to a non-linear filter which produces filtered signals, memorizing, inputting the data blocks in reverse order of time to the non-linear filter, and displaying produced data blocks in regular order of time. CONSTITUTION: Digitized ECG data from a converter 11 is filtered through the filter 12, and written in a buffer 14 composed of RAM. A reverse order filter 16 reads the filtered data from a buffer 14 in reverse order of time, filters the data, and memorizes part of the time-reversal data in a queue 18. The time-reversal filtered data is read out by a video display circuit element 20 from the queue, fed to a monitor 22 to be displayed as CG waveforms removed of drifting of the baseline. |
