US 12,476,617 B2
Signal processing circuits and methods
Xin Zhou, Shenzhen (CN); Lei Su, Shenzhen (CN); Yuxiang Zhang, Shenzhen (CN); Meiqi Li, Shenzhen (CN); Xin Qi, Shenzhen (CN); and Fengyun Liao, Shenzhen (CN)
Assigned to SHENZHEN SHOKZ CO., LTD., Shenzhen (CN)
Filed by SHENZHEN SHOKZ CO., LTD., Guangdong (CN)
Filed on Mar. 14, 2023, as Appl. No. 18/183,930.
Application 18/183,930 is a continuation of application No. PCT/CN2020/142529, filed on Dec. 31, 2020.
Prior Publication US 2023/0218236 A1, Jul. 13, 2023
Int. Cl. H03H 11/04 (2006.01); A61B 5/00 (2006.01); A61B 5/305 (2021.01)
CPC H03H 11/04 (2013.01) [A61B 5/7225 (2013.01); A61B 5/725 (2013.01); A61B 5/0015 (2013.01); A61B 5/305 (2021.01); A61B 5/6833 (2013.01); H03H 2011/0488 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A signal processing circuit, comprising a control circuit, a switch circuit, an analog circuit, and at least two signal acquisition circuits, wherein
the at least two signal acquisition circuits are configured to acquire at least two-channel target signals;
the switch circuit is configured to control conduction between the at least two signal acquisition circuits and the analog circuit, so that the target signal collected by a part of the at least two signal acquisition circuits is transmitted to the analog circuit at the same time;
the analog circuit is configured to process the received target signal; and
the control circuit is configured to receive the processed target signal, and sample the processed target signal, wherein each of the at least two-channel target signals includes a target frequency, and a sampling frequency of each of the processed target signal by the control circuit is not less than twice of the target frequency.