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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12581236 B1

PDFFull Text
Date of Patent:
Mar. 17, 2026

Filed:

Jan. 09, 2024

Electronic stethoscope signal processor, electronic stethoscope system, electronic stethoscope signal processing program and electronic stethoscope signal processing method

Applicants:

Nisshinbo Micro Devices Inc., Tokyo, JP;

Kanazawa Institute of Technology, Ishikawa, JP;

Inventors:

Suehiro Shimauchi, Ishikawa, JP;

Kanako Takemoto, Saitama, JP;

Masashi Kitagawa, Saitama, JP;

Chunhui Pan, Saitama, JP;

Daisuke Sakata, Saitama, JP;

Tei Yui, Saitama, JP;

Hajime Fujiwara, Saitama, JP;

Assignee:

Nisshinbo Micro Devices Inc., Tokyo, JP;

Attorney:

Ohlandt, Greeley and Perle, LLP.

Primary Examiner:

James K Mooney

Int. Cl.
CPC ...
H04R 3/00 (2006.01); A61B 7/04 (2006.01); H04R 1/46 (2006.01); H04R 3/04 (2006.01);
U.S. Cl.
CPC ...
H04R 3/04 (2013.01); A61B 7/04 (2013.01); H04R 1/46 (2013.01); H04R 3/005 (2013.01);
Abstract

Extract intracorporeal sounds (such as low-frequency-range heart sounds or breath sounds) by not only reducing steady noise (such as low-frequency-range environmental sounds or noise) but also reducing unexpected noise (such as high-frequency-range cries or speaking voices). This keeps up the intracorporeal sounds (such as low-frequency-range heart sounds or breath sounds), while reducing the unexpected noise (such as high-frequency-range cries or speaking voices), using an improved adaptive filter unit and an improved nonlinear filter unit. Here, a reduction level of the unexpected noise (such as high-frequency-range cries or speaking voices) and a level of keeping up the intracorporeal sounds (such as low-frequency-range heart sounds or breath sounds) are quantitatively calculated.

Find Patent Forward Citations

Shimauchi, Suehiro. (2026). Electronic stethoscope signal processor, electronic stethoscope system, electronic stethoscope signal processing program and electronic stethoscope signal processing method (U.S. Patent No. 12581236). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12581236

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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