公开(公告)号：AU2020399286B2

公开(公告)日：2024-05-02

申请号：AU2020399286

申请日：2020-12-07

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： HENRY PAUL D

IPC: A61F11/08 ,  A61F11/14

Abstract: An in-ear hearing protection device is provided. The in-ear hearing protection device includes a microphone (410) configured to receive an ambient sound. The in-ear hearing protection device also includes a processor (420) configured to perform an attenuation function on the received ambient sound to provide an attenuated sound. The in-ear hearing protection device also includes a speaker (440) configured to broadcast the attenuated sound. The in-ear hearing protection device also includes a communication module (430) configured to receive a second attenuation function detail from a second in-ear protection device. The processor is configured to calculate a first attenuation function detail and compare the first and second attenuation function details. The performed attenuation function is based on one of the first and second attenuation function details.

公开(公告)号：AU2022238374B2

公开(公告)日：2024-11-28

申请号：AU2022238374

申请日：2022-03-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： BERNIER ANTOINE J ,  HENRY PAUL D ,  RAYMOND ALEXANDRE J ,  HAMER JEFFREY L ,  FACKLER CAMERON J

IPC: H04R1/10 ,  A61F11/06 ,  H04R3/00

Abstract: Systems and methods for check a relative sensitivity of two or more microphones of a hearing protection device include sensing ambient sound using two or more microphones of the hearing protection device and sampling the ambient sound. The samples of the ambient sound may be used to determine whether the ambient sound is adequate for determining microphone sensitivity and to determine whether a threshold relative sensitivity of the two or more microphones is reached. A pass or fail indication may be provided to a user based on whether the threshold relative sensitivity is reached.