Patent ID: 8855753
Filing Date: 2014-10-07
Classification: A61B,Y10S

Abstract:
1. A biological signal measuring apparatus comprising: an interface configured to detect a biological signal of an examinee through electrical interfacing with a skin of the examinee; a dummy interface, having electrical characteristics that are different from electrical characteristics of the interface, configured to detect a dummy signal that is different from the biological signal; a noise calculating unit configured to calculate a signal that is proportional to noise generated in the biological signal using a similarity between fluctuations in the electrical characteristics of the interface and the dummy interface; and a biological signal extracting unit configured to remove the noise from the detected biological signal using the calculated signal, wherein the dummy interface comprises at least one dummy electrode and the interface comerises at least one interface electrode and the at east one dumm electrode is formed of a material that is different from a material of the at least one interface electrode so that the electrical characteristics of the dummy interface are different from the electrical characteristics of the interface.