公开(公告)号：USD1010607S1

公开(公告)日：2024-01-09

申请号：US29758486

申请日：2020-11-16

Applicant: 3M Innovative Properties Company

Designer： William P. Atwood ,  Antoine Bernier ,  Bernard Daoust ,  Katrin Braun

Abstract: FIG. 1 is a bottom left perspective view of a headset in accordance with an embodiment of the claimed design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a right side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines immediately adjacent the shaded areas represent the bounds of the claimed design while all other broken lines depict portions of the claimed design that form no part of the claimed design.

公开(公告)号：US20240267673A1

公开(公告)日：2024-08-08

申请号：US18564525

申请日：2022-05-27

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Antoine Bernier ,  Katrin Braun ,  Bernard Daoust

IPC: H04R1/28 ,  H04R1/04 ,  H04R1/10

CPC classification number: H04R1/288 ,  H04R1/04 ,  H04R1/1016 ,  H04R1/1075 ,  H04R1/2888 ,  H04R2400/01

Abstract: An earpiece includes a shell forming a cavity and a sound channel having a first end connected to and in communication with the cavity, and a second end opposite to the first end, the sound channel forming a single pass-through cavity extending from the first end to the second end; an insert disposed within the cavity; a speaker; a circuit board assembly mounted onto the insert, the circuit board assembly comprising a printed circuit board defining a first side and a second side, and a first microphone disposed on the first side; an acoustic chamber formed between the insert and the circuit board assembly, the first microphone being disposed within the acoustic chamber; and an acoustic channel extending from the acoustic chamber to the sound channel.

公开(公告)号：US20240187804A1

公开(公告)日：2024-06-06

申请号：US18550735

申请日：2022-03-17

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Antoine Bernier ,  Paul D. Henry ,  Alexandre J. Raymond ,  Jeffrey L. Hamer ,  Cameron J. Fackler

IPC: H04R29/00

CPC classification number: H04R29/004

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.