公开(公告)号：US20240041147A1

公开(公告)日：2024-02-08

申请号：US18258218

申请日：2021-12-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Magnus S. Johansson ,  Abel Gladstone Mangam ,  Patrick R.T. Hjort ,  Henning T. Urban

IPC: A42B1/0188 ,  G01S11/08 ,  G01S11/06 ,  A42B3/16

CPC classification number: A42B1/0188 ,  G01S11/08 ,  G01S11/06 ,  A42B3/166

Abstract: Hearing protection device (10, 10′, 10″) with an indication unit (40a, 40b) and a detection unit (30, 30′, 30″) to send a first detection signal, to assign a distance value based on a second detection signal of an external device (50, 50) representing the physical distance to the external device (50, 50) and to control the indication unit (40a, 40b) to provide an indication to the user (100) if the assigned distance value is at or below a predetermined threshold distance value. Thus, a collision may easily and reliably be prevented by providing an indication to the user (100), so that the risk of missing relevant sound of a moving person or object is overcome. A collision warning system comprising such a hearing protection device (10, 10′, 10″) and an external device is also provided. Furthermore, a method of retrofitting a hearing protection device (10′″) with such a detection unit (30, 30′, 30″) is provided.

公开(公告)号：US20250140248A1

公开(公告)日：2025-05-01

申请号：US18692871

申请日：2022-09-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonas A. Nilsson ,  Patrick R.T. Hjort

IPC: G10L15/20 ,  A61F11/12 ,  A61F11/14 ,  G10L15/22

Abstract: A hearing protection device (10, 10′) comprises at least one earmuff (12, 14) or earplug (12′, 14′), optionally a headband (18, 18′) for carrying the at least one earmuff (12, 14) or earplug (12′, 14′), electronic equipment (13b, 13c, 13d), sound-absorbing material and a haptic sensing unit (11, 11a, 11b) to sense a touch pattern occurring on at least a first portion of the hearing protection device (10, 10′), optionally of the at least one earmuff (12, 14) or earplug (12′, 14′) and/or of the headband (18, 18′). A method of operating a hearing protection device (10, 10′) comprises the steps of providing a haptic sensing unit (11, 11a, 11b) having a haptic sensor (146a, 146b, 146c) configured to sense a touch pattern occurring on at least a first portion of the hearing protection device (10, 10′), optionally of the at least one earmuff (12, 14) or earplug (12′, 14′) and/or of the headband (18, 18′); executing a command when the haptic sensor senses (146a, 146b, 146c) a touch pattern occurring on at least a first portion of the hearing protection device (10, 10′), optionally at least one earmuff (12, 14) or earplug (12′, 14′) and/or of the headband (18, 18′); and triggering a particular state for the hearing protection device (10, 10′) based on the touch pattern sensed, wherein the it provides for a button-less hearing protection device (10, 10′) not requiring space and holes in the outer shell. Just tapping on a portion of the hearing protection device (10, 10′) will initiate operational switching thereof, i. e.—upon sensing of a touch pattern, a command is executed.

公开(公告)号：US20230410808A1

公开(公告)日：2023-12-21

申请号：US18252370

申请日：2021-11-04

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Holger J. Kurzhals ,  Michael H. Stalder ,  Patrick R.T. Hjort ,  Magnus S. Johansson

IPC: G10L15/22 ,  G06F3/01 ,  A61F9/06 ,  A61F11/12 ,  A61F11/14 ,  G09B5/04 ,  G02C7/10 ,  A62B18/08 ,  A42B1/0188 ,  A42B1/0181

CPC classification number: G10L15/22 ,  G06F3/016 ,  A61F9/067 ,  A61F11/12 ,  A61F11/145 ,  G09B5/04 ,  G02C7/104 ,  A62B18/08 ,  A42B1/0188 ,  A42B1/0181 ,  G10L2015/225 ,  G10L2015/223

Abstract: The present disclosure relates to a personal protective device 100, 100′, 300, 400, 500 with local voice recognition comprising a voice receiving unit 20, 20′, a voice processing unit 30, 30′, a command processing unit 40, 40′ and a control unit 42, 42′. The present disclosure further relates to a method of processing a voice signal 202, 202′ in a personal protective device 100, 100′, 300, 400, 500 with local voice recognition comprising the steps of recognizing a voice signal 202, 202′ by a microphone 10, 10′, transmitting the voice signal 202, 202′ to the voice processing unit 30, 30′, optionally of an external device 31′, processing the received voice signal 202, 202′ with the voice processing unit 30, 30′ to generate a voice command based on the received voice signal 202, 202′, processing the voice command generated from the voice signal 202, 202′ and matching it with the command information stored within the voice processing unit 30, 30′ to generate a voice command information block, transmitting the voice command information block to the command processing unit 40, 40′, processing the voice command information block and matching it with the control information stored within the command processing unit 40, 40′ to generate a control command and transmitting the control command to the control unit 42, 42′.

公开(公告)号：US20230000685A1

公开(公告)日：2023-01-05

申请号：US17756450

申请日：2020-11-24

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jonas A. Nilsson ,  Van Cuong Bui ,  Patrick R.T. Hjort

IPC: A61F11/14 ,  H04R1/10

Abstract: The present disclosure relates to a system 10 comprising an ear cushion 20 for a headset 100, a fluid supply 30 and a fluid guide device 40 connected to the ear cushion 20. The present disclosure further relates to an ear cushion 20 for a headset 100, a fluid guide device 40 for a headset 100. Moreover, the present disclosure relates to a headset 100 as well as to a headgear 200 comprising such a system 10.