Receiver for human body communication and method for removing noise thereof

A receiver for performing human body communication, the receiver comprising:

• a reception electrode attached on a human body;
• an impedance matching circuit configured to receive a transmission signal from the reception electrode and perform impedance matching;
• a signal amplifying circuit configured to amplify a signal output from the impedance matching circuit;
• a band pass filter configured to filter a signal output from the signal amplifying circuit;
• a comparator configured to amplify a voltage level of a signal output from the band pass filter;
• a clock and data recovery circuit configured to recover data and a clock from a signal output from the comparator using a reception clock;
• a digital modem configured to recover reception information from the data and the clock output from the clock and data recovery circuit;
• a first power supply terminal configured to provide a first power supply voltage to the impedance matching circuit, the signal amplifying circuit and the band pass filter;
• a second power supply terminal configured to provide a second power supply voltage to the comparator, the clock and data recovery circuit, and the digital modem;
• a first ground terminal configured to provide a first ground voltage to the impedance matching circuit, the signal amplifying circuit and the band pass filter;
• a second ground terminal configured to provide a second ground voltage to the comparator, the clock and data recovery circuit, and the digital modem;
• and
• a power supplying circuit for generating the first power supply voltage, the second power supply voltage, the first ground voltage, and the second ground voltage,
• wherein a first resistor or a first passive element is connected between the second power supply terminal and at least one of the comparator, the clock and data recovery circuit and the digital modem, and
• a second resistor or a second passive element is connected between the second ground terminal and at least one of the comparator, the clock and data recovery circuit and the digital modem.