| 主权项 |
1. A method of generating twelve-lead electrocardiogram (ECG) signals to be implemented by a signal processor, said method comprising the steps of:
i) receiving a plurality of training myoelectric signals, which are sensed respectively by a plurality of test electrodes disposed on the chest of the user's body respectively at separate points during a training period, and twelve standard lead signals measured from the user's body during the training period; ii) generating, based on the training myoelectric signals, a plurality of training differential voltages that correspond respectively to a plurality of training differential electrode pairs, each of which consists of a respective adjacent pair of the test electrodes that are disposed at respective distinct locations on the chest of the user's body, each of the training differential voltages being defined as a potential difference between two of the training myoelectric signals sensed by two corresponding adjacent ones of the test electrodes; iii) generating, based on the training differential voltages, a plurality of different training differential voltage subsets, each containing three corresponding ones of the training differential voltages; iv) for each of the training differential voltage subsets, establishing, based on the three corresponding ones of the training differential voltages and on the twelve standard lead signals, a training dynamic system model that is associated with the three corresponding ones of the training differential electrode pairs and that is configured with temporal and spatial correlations among twelve leads of the ECG, and generating, based on the three corresponding ones of the training differential voltages and the training dynamic system model, a corresponding set of twelve synthesized lead signals, which contain eight independent synthesized lead signals corresponding respectively to eight independent leads of the ECG, and four non-independent synthesized lead signals corresponding respectively to four non-independent leads of the ECG; and v) comparing the corresponding set of the twelve synthesized lead signals of each of the training differential voltage subsets respectively with the twelve standard lead signals so as to obtain comparison results corresponding respectively to the training differential voltage subsets; vi) determining, based on the comparison results and the locations of the test electrodes constituting the training differential electrode pairs, one of the training dynamic system models established in step iv) as a pre-established dynamic system model, and determining the locations at which the test electrodes constituting the three corresponding ones of the training differential electrode pairs associated with said one of the training dynamic system models are disposed as predetermined specific locations of electrodes constituting differential electrode pairs; vii) receiving three differential voltages, each of which is defined as a potential difference between two corresponding myoelectric signals sensed respectively by two corresponding electrodes that cooperatively constitute a corresponding differential electrode pair that are disposed on a chest of a user's body at the predetermined specific locations; and viii) generating, based on the differential voltages, twelve-lead ECG signals, which include twelve synthesized lead signals, using the pre-established dynamic system model that is associated with the specific locations of the electrodes constituting the differential electrode pairs on the chest of the user's body and that is configured with temporal and spatial correlations among the twelve leads of the ECG, which include the eight independent leads and the four non-independent leads. |
