公开(公告)号：US20240216179A1

公开(公告)日：2024-07-04

申请号：US18558548

申请日：2022-04-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Frank T. Herfort ,  Jan D. Forster ,  Torsten Koppenhagen ,  Vijay K. Gidla ,  Abel Gladstone Mangam

IPC: A61F11/14 ,  A61F9/06 ,  G06F3/16 ,  H04R1/10

CPC classification number: A61F11/145 ,  A61F9/06 ,  G06F3/165 ,  H04R1/1041 ,  H04R1/1083 ,  H04R2201/107 ,  H04R2460/01

Abstract: A personal protective equipment device is presented that includes a speaker configured to provide a modified sound to a user. The device also includes a microphone configured to capture an ambient sound stream. The device also includes a sound analyzer that receives the ambient sound stream from the microphone and identifies a first sound in the ambient sound. The device also includes a sound processor that applies a model to the first sound, based on the sound identification, to obtain the modified sound, wherein the model changes a characteristic of the identified sound. The modified sound is provided to the speaker. The model comprises an algorithm stored locally in a model database within a memory of the personal protective equipment device.