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.:
Date of Patent:
Apr. 26, 2016
Filed:
Nov. 18, 2015
John Leonard Semmlow, New Brunswick, NJ (US);
John Leonard Semmlow, New Brunswick, NJ (US);
Other;
Abstract
The present invention is an apparatus for detection of high-frequency heart sounds for diagnosing heart diseases. One embodiment utilizes an accelerometer-based detector that presents a light load to the chest, is sensitive to the desired high frequency range, and provides a quantitative measurement of the quality of the acquired signal. Two pairs of flexible beams, each having piezoelectric transducers on the upper and lower surfaces are supported by a lightweight mechanical structure. The beams are center-loaded so that they respond to the same mechanical energy and will produce identical electrical signals in the absence of noise. Through additional signal processing means the two signals can provide an estimate of the signal-to-noise ratio of the acquired signal. The two signals can also be combined to further improve the signal-to-noise ratio. The invention is designed to be light weight, sensitive to higher frequencies, and to be relatively immune to noise.