Hearing Protection Haptic Feedback for Ambient and Device Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hearing protection devices fail to provide reliable feedback to users about both ambient conditions and device conditions, increasing the risk of missing important acoustic signals and collisions in noisy environments.
Innovation Solution
A hearing protection device with haptic feedback elements that provide both device-specific and ambience-specific feedback to the user, using a control unit to transmit haptic signals through skin-contact elements for notifications about device conditions and surrounding objects or situations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If active electronics with microphones and loudspeakers are used to transmit acoustic signals, then sound transmission capability is improved, but the risk of missing acoustic signals increases due to multiple acoustic inputs
Solution Approach 1:
The patent replaces acoustic signal transmission through loudspeakers with haptic feedback using vibration motors. The vibration motor generates vibrations that are transmitted through the earmuff structure to the user's skull, providing tactile awareness of acoustic signals without relying on auditory processing, thus eliminating the risk of missing signals due to acoustic overload.
Solution Approach 2:
The patent introduces a vibration motor as an intermediary between the acoustic environment and the user. Instead of directly transmitting acoustic signals through air conduction (which can be overloaded), the vibration motor converts acoustic information into mechanical vibrations that travel through the earmuff and skull, providing a reliable intermediate transmission path.
2Reliability
If haptic feedback is added to provide feedback about moving objects, then safety is improved, but device complexity increases
Solution Approach 1:
The patent makes the vibration motor multi-functional by enabling it to provide both ambience-specific feedback (detecting moving objects in the environment) and device-specific feedback (indicating device conditions such as battery status or malfunction). This single component serves multiple safety and information communication functions, reducing the need for separate feedback mechanisms.
Solution Approach 2:
The patent combines multiple feedback functions into a single haptic feedback system. The vibration motor integrates the detection of environmental conditions and device status into one unified feedback mechanism, where different vibration patterns can indicate different types of information, thereby reducing overall device complexity while maintaining comprehensive feedback capability.
3Object-affected harmful factors
If noise dampening material is used to protect hearing, then hearing protection is improved, but the ability to hear environmental sounds is reduced
Solution Approach 1:
The patent replaces acoustic transmission of environmental sounds with mechanical vibration transmission. Instead of relying on the user to hear sounds through the earmuff (which is blocked by noise dampening material), the vibration motor converts environmental acoustic information into mechanical vibrations that bypass the acoustic barrier and directly stimulate the user's skull, maintaining environmental awareness while preserving noise protection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device minimizes the risk of collisions and ensures users are informed about device status and ambient conditions through reliable haptic feedback, enhancing safety and usability in noisy environments.
Implementation Method 1
at least one haptic feedback element (44) comprising a skin-contact element (46), wherein the haptic feedback element (44) is configured and arranged to provide device-specific feedback and ambience-specific feedback to the user, wherein the skin-contact element (46) is configured and arranged to transmit - in use - haptic signals to the user's skin
Data Source
Figure 1~3
Figure 4~5
Figure 6~7
AI summary
A hearing protection device (10, 10', 10'') with at least one earmuff or earplug (12a, 12b, 12a', 12b', 12a''), optionally a headband (18, 18', 18'') for supporting the earmuff or earplug (12a, 12b, 12a', 12b', 12a'') at the user´s head, a control unit (42) and at least one haptic feedback element (44, 44a, 44b, 44c, 44d, 44a', 44b', 44c', 44d') comprising a skin-contacting element. The haptic feedback element (44, 44a, 44b, 44c, 44d, 44a', 44b', 44c', 44d') is configured and arranged to provide device-specific feedback and ambience specific feedback to the user (100). The skin-contact element (46, 46a, 46b, 46c, 46d, 46a', 46b', 46c', 46d') is configured and arranged to transmit – in use - haptic signals to the user´s skin Thus, the user (100) is provided with feedback not only about objects moving around the user (100), but also related to the hearing protection device (10, 10', 10'') as such and conditions thereof. That is that such a hearing protection device (10, 10', 10'') prevents or reduces the risk of a collision of the wearer with other persons or objects in an easy and reliable way and at the same time, the user (100) of the hearing protection device (10, 10', 10'') is reliably and easily informed about conditions of the hearing protection device (10, 10', 10''), e. g. battery warning, incoming calls or the like and/or conditions of the user (100). Also, the risk of missing relevant sounds is thereby compensated. Furthermore, a method of operating a hearing protection device (10, 10', 10'') is provided, in which device-specific feedback and ambience-specific feedback to the user (100) of the hearing protection device (10, 10', 10'') is provided.