US Patent Issued to KINGFAR INTERNATIONAL on Nov. 18 for "EEG impedance test circuit, method, and device" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,474,375, issued on Nov. 18, was assigned to KINGFAR INTERNATIONAL INC. (Beijing).

"EEG impedance test circuit, method, and device" was invented by Qichao Zhao (Beijing), Ran Yang (Beijing) and Zhao Li (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an EEG impedance test circuit, a method, and a device. The circuit comprises a frequency selecting circuit, an amplification circuit, a follower circuit, and a power supply terminal AVCC. An input end of the frequency selecting circuit is connected to the power supply terminal AVCC, the input end of the frequency selecting circuit is further connected to the input end of the amplificatio...