Multi-Mode Bone Conduction Headset with Detachable Earbuds
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Solution Overview
Problem
Existing bone conduction transducers are frequency-limited and have a high noise floor, making them unsuitable for outdoor activities where situational awareness is crucial, while in-ear audio transducers block ambient noise, limiting their use in such environments.
Innovation Solution
A multi-modal headset that incorporates both bone conduction and aural transducers, allowing users to switch between modes for optimal audio quality and noise isolation, using bone conduction plates on the temples for ambient awareness and detachable earbuds for noise isolation, with a magnetic proximity sensor controlling audio routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If bone conduction transducers are used, then ambient noise awareness is maintained, but audio quality and frequency response are limited
Solution Approach 1:
The patent combines bone conduction transducers and aural transducers into a single headset system that can operate in multiple modes. The bone conduction plates remain on the temples for ambient awareness, while aural transducers can be inserted into the ears for high-quality audio, and both can work simultaneously to provide enhanced frequency response and amplitude.
Solution Approach 2:
The headset is designed with multi-functionality to serve different listening needs. It can operate in bone conduction-only mode for ambient awareness, aural transducer-only mode for high-quality isolated audio, or combined mode for enhanced audio performance, making it adaptable to various outdoor activity requirements.
2Manufacturing precision
If aural transducers are used, then audio quality is improved, but ambient noise awareness is blocked
Solution Approach 1:
The headset employs dynamic mode switching between bone conduction and aural transducer operation. A magnetic proximity sensor detects whether earbuds are inserted into the ears and automatically routes audio signals accordingly, allowing the system to adapt to the user's listening environment and needs in real-time.
Solution Approach 2:
The system merges bone conduction and aural transducer capabilities into one unified headset that can selectively engage different transducers based on usage conditions, providing both high-quality audio when needed and ambient awareness when safety is a concern.
3Manufacturing precision
If both bone conduction and aural transducers are used simultaneously, then amplitude and frequency response are enhanced, but device complexity increases
Solution Approach 1:
The headset includes automatic mode detection and switching capabilities through magnetic proximity sensors that detect the presence or absence of earbuds. The system self-manages audio routing between bone conduction and aural transducers without requiring manual user intervention, simplifying the user experience despite the dual-transducer complexity.
Solution Approach 2:
The dual-transducer design provides universal functionality across multiple operating modes, allowing the same physical device to deliver enhanced audio performance, ambient awareness, or isolated high-quality audio depending on the user's needs and environmental conditions.
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
Enables high-quality audio with noise isolation in aural mode and ambient awareness in bone conduction mode, providing additional amplitude and frequency response when both transducers are used simultaneously, enhancing user safety and experience in outdoor activities.
Implementation Method 1
Bone conduction plates of the headset rest on a users' temples, just in front of each ear in one implementation, and create sound through vibrations
Implementation Method 2
The headset may include a switch, such as a magnetic proximity sensor detecting the position of the aural transducers
Data Source
AI summary
The present disclosure describes a multi-mode headset incorporating both bone conduction and aural transducers. Bone conduction plates of the headset rest on a users' temples, just in front of each ear in one implementation, and create sound through vibrations in a first mode, allowing the user to listen to the headset while still leaving environmental or external sounds audible. In a second mode, the user detaches aural transducers or earbuds from an attachment point and inserts them into the user's ears, blocking external noise and providing passive and/or active noise isolation. In a third mode, both the bone conduction plates and aural transducers may be used simultaneously, providing additional amplitude and potentially wider frequency response. The headset may include a switch, such as a magnetic proximity sensor detecting the position of the aural transducers, to control a mixer or amplifier to re-route audio through the aural transducers. Accordingly, the user may switch between modes and listen to high quality, noise-isolated audio; or audio while remaining aware of external noises.