摘要 |
The ECG sensing unit (100) has three electrodes used for application to subject, and arranged to generate bipolar signals. A radio module is used to establish communication with remote receiver station, and differential amplifier is used to generate non-standard ECG signal based on bipolar signals. The inputs of differential amplifier are connected to electrodes. The inputs of differential amplifier are arranged for allowing physical and electrical connection and disconnection of differential amplifier to and from separate electrode located external to main portion. |