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.

Date of Patent:
Aug. 05, 2025

Filed:

Aug. 09, 2018
Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventor:

Ying Zhang, Shanghai, CN;

Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 8/08 (2006.01); A61B 8/00 (2006.01);
U.S. Cl.
CPC ...
A61B 8/0866 (2013.01); A61B 8/488 (2013.01);
Abstract

A method () of detecting fetal movements includes: deriving a plurality of peaks from the Doppler ultrasound signal acquired from a subject, each peak of the plurality of peaks being associated with an envelope of a signal segment of the Doppler ultrasound signal; calculating a density of the peaks as a function of a plurality of amplitude grids, the density indicating the number of peaks with amplitude in each amplitude grid; selecting a fetal movement threshold based on the calculated density, and determining whether a signal segment of the Doppler ultrasound signal includes a fetal movement by comparing the amplitude of the peak associating with the envelope of the signal segment with the fetal movement threshold.


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