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:
Sep. 02, 2025

Filed:

Nov. 28, 2023
Applicant:

Honeywell Safety Products Usa, Inc., Charlotte, NC (US);

Inventors:

En Yi Chen, Charlotte, NC (US);

Li Cheng, Charlotte, NC (US);

Zhicheng Zou, Charlotte, NC (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10K 11/178 (2006.01);
U.S. Cl.
CPC ...
G10K 11/17825 (2018.01); G10K 11/1785 (2018.01); G10K 2210/109 (2013.01);
Abstract

Apparatuses and methods for improved noise reduction and voice capture in respiratory protective devices are provided. For example, an example respiratory protective device includes at least one fan component secured to the respiratory protective device, at least one sound sensor component positioned within the respiratory protective device and generating a detected sound signal, and a controller component electronically coupled to the at least one fan component. In some examples, the controller component is configured to receive a detected fan speed signal, retrieve a corresponding noise profile data object, generate a noise-reduced sound signal, and transmit the noise-reduced sound signal to a data communication component.


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