US 11,770,146 B2
Apparatus and method for removing high-frequency radio frequency interference
Peng Zhang, Shenzhen (CN); Ningling Zhang, Shenzhen (CN); Junhua Xie, Shenzhen (CN); Xingliang Jin, Shenzhen (CN); Xianliang He, Shenzhen (CN); Zhigang Ye, Shenzhen (CN); Hanyuan Luo, Shenzhen (CN); Ming Li, Shenzhen (CN); and Zuming Yao, Shenzhen (CN)
Assigned to SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., Shenzhen (CN); and SHENZHEN MINDRAY SCIENTIFIC CO., LTD., Shenzhen (CN)
Filed by SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD., Shenzhen (CN); and Shenzhen Mindray Scientific Co., Ltd., Shenzhen (CN)
Filed on Jun. 29, 2020, as Appl. No. 16/916,050.
Application 16/916,050 is a continuation in part of application No. PCT/CN2017/120370, filed on Dec. 30, 2017.
Prior Publication US 2020/0336162 A1, Oct. 22, 2020
Int. Cl. H04B 1/10 (2006.01); A61B 5/00 (2006.01); A61B 5/316 (2021.01); A61B 5/369 (2021.01)
CPC H04B 1/1027 (2013.01) [A61B 5/316 (2021.01); A61B 5/369 (2021.01); A61B 5/7203 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for removing high-frequency radio frequency interference, comprising:
acquiring an electroencephalogram signal;
performing high-pass filtering on the electroencephalogram signal to obtain an intermediate signal;
obtaining a time-domain feature of the intermediate signal within a first preset duration, and calculating a detection threshold value according to the time-domain feature;
obtaining a sub-intermediate signal within a second preset duration, and determining a signal type of the sub-intermediate signal according to the detection threshold value, wherein the signal type is determined among different signal types reflecting at least three different degrees of interference on the electroencephalogram signal; and
performing, according to the determined signal type, corresponding processing on the electroencephalogram signal corresponding to the sub-intermediate signal.