| 摘要 |
A heart monitoring apparatus and method is disclosed in which an electrocardiograph signal is obtained from a patient and digitized. The digitized electrocardiograph signal is stored directly into a low power memory device which has a capacity to store the electrocardiograph signal for only a most recent period of time. Thus the low power memory device continuously receives the electrocardiograph signal and continuously overwrites the oldest stored electrocardiograph signal in the memory device. A processor is provided for analysing the stored electrocardiograph signals to generate processed cardiac data. The processed cardiac data and the electrocardiograph signals used to obtain the processed cardiac data are stored in a main memory device. The processor is responsive to a processing instruction signal to enter a high power mode of operation to read and process the electrocardiograph signals stored in the low power memory device and to store the processed cardiac data and the associated electrocardiograph signals in the main memory device. Once processing of the electrocardiograph signals over a period of time has been completed, the processor returns to a low power mode of operation to wait for the next processing instruction signal. |
