ECG device, ECG lead signal generating circuit, and related method

An ECG signal generating method, comprising:

• generating a first modified precordial lead according to three cardio enclosure voltages, wherein the three cardio enclosure voltages are sufficient for generating the first modified precordial lead;
• generating a second modified precordial lead according to the three cardio enclosure voltages, wherein the three cardio enclosure voltages are sufficient for generating the second modified precordial lead;
• and
• receiving m precordial voltages, where m is equal to 0, 1, 2, 3, or 4, and 8+m modified leads are generated according to the 3 cardio enclosure voltages and the m precordial voltages.

An ECG device, comprising:

• an electrode assembly, comprising three cardio enclosure electrodes for acquiring three cardio enclosure voltages, respectively, and a precordial electrode for acquiring a precordial voltage;
• and
• an ECG lead signal generating circuit, comprising:
• a first precordial lead generator, coupled to the electrode assembly, configured to generate a first modified precordial lead according to the three cardio enclosure voltages but not according to the precordial voltage;
• wherein the electrode assembly further comprises n precordial electrodes for acquiring n precordial voltages, where n is equal to 0, 1, 2, 3, 4, or 5, and the ECG lead signal generating circuit is configured to generate 7+n modified leads according to the 3 cardio enclosure voltages and the n precordial voltages.

An ECG signal processing method, comprising:

• acquiring three cardio enclosure voltages from three cardio enclosure electrodes, respectively, and acquiring a precordial voltage from a precordial electrode;
• generating a first modified precordial lead according to the three cardio enclosure voltages but not according to the precordial voltage;
• and
• acquiring n precordial voltages from n precordial electrodes, where n is equal to 0, 1, 2, 3, 4, or 5, and 7+n modified leads are generated according to the 3 cardio enclosure voltages and the n precordial voltages.