Bone Conduction Exciter Emulating Audio Frequencies
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Solution Overview
Problem
High frequency sounds can cause health issues such as hearing loss, and there is a need for technologies that enable older individuals or all ages to experience clean and enjoyable low and low to middle-frequency sounds using bone conduction, as early intervention in hearing loss is crucial for maintaining hearing health.
Innovation Solution
A system comprising an exciter device with a solenoid device and a vibration micro motor, configured to generate low and low to middle-frequency vibration waves, which includes a solenoid device with an impact member and a returning spring, and a vibration micro motor with rotatable metal members, capable of producing vibrations when activated by a compressed spring, and integrated with a Bluetooth module and accelerometer to analyze and convert audio frequencies into perceivable vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high frequency sounds are used, then sound quality and audio fidelity are improved, but health effects such as hearing loss, headache, and tinnitus occur
Solution Approach 1:
The patent converts the harmful effect of high frequency sounds on hearing into a beneficial approach by using bone conduction to transmit low frequency vibrations directly through the skull. This bypasses the vulnerable ear canal and eardrum, allowing audio transmission without the harmful effects of high frequency exposure while maintaining audio fidelity through the intact auditory nerve pathway.
Solution Approach 2:
The patent replaces the traditional acoustic mechanical transmission system (sound waves through air to eardrum) with a direct mechanical vibration system. The exciter device generates low frequency vibrations that are transmitted through bone tissue directly to the inner ear, substituting the air-acoustic pathway with a solid-mechanical pathway that avoids damage to the eardrum and ear canal.
2Adaptability or versatility
If traditional acoustic transmission is used, then audio frequency range is covered, but older individuals experience hearing loss and reduced sound perception
Solution Approach 1:
The patent segments the audio frequency transmission into two distinct pathways: low frequency vibrations transmitted through bone conduction for enhanced perception, and high frequency sounds transmitted through traditional acoustic pathways. This segmentation allows older individuals to receive low frequency information through the more reliable bone conduction route, compensating for age-related high frequency hearing loss.
Solution Approach 2:
The patent introduces bone tissue as an intermediary medium between the audio source and the inner ear. By using the skull bones as a transmission medium, the system bypasses the deteriorating outer and middle ear structures in older individuals, providing a reliable alternative pathway for sound transmission that maintains hearing capacity despite age-related degradation.
3Object-affected harmful factors
If low frequency vibration waves are used, then health safety is improved, but sound perception clarity may be reduced
Solution Approach 1:
The patent employs dynamic frequency modulation where the exciter device adjusts vibration frequencies in real-time based on the audio input signal. Low frequency vibrations are used for bass and deep tones, while the system dynamically incorporates higher frequency components when needed, maintaining health safety through primary low frequency transmission while preserving sound perception clarity through adaptive frequency adjustment.
Solution Approach 2:
The patent uses a composite approach combining multiple vibration frequencies and transmission modes. The exciter device generates a composite vibration signal that includes primarily low frequency components for health safety, with superimposed higher frequency modulations to maintain sound perception clarity. This composite vibration approach allows simultaneous achievement of health safety and audio fidelity.
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 system effectively emulates low and low to middle audio frequencies through low and low to middle-frequency vibration waves, providing a safe and enjoyable sound experience while helping to address age-related hearing loss by enhancing sound perception and daily life quality.
Implementation Method 1
a solenoid device with an impact member and a returning spring, configured to generate low frequency vibration waves
Implementation Method 2
a vibration micro motor with rotatable metal members, capable of producing vibrations when activated
Implementation Method 3
a returning spring contacted to an impact member and configured to generate low frequency vibration waves
Implementation Method 4
utilize an exciter device for generating low frequency vibration waves and the low-middle frequency vibration waves to emulate frequency sounds
Data Source
AI summary
A system for generating low and low to middle-frequency vibration waves to emulate low and low to middle audio frequencies includes an exciter device including a solenoid device located adjacent to a vibration micro motor; wherein the solenoid device includes an impact member contacted to a returning spring and configured to generate low frequency vibration waves; wherein the vibration micro motor includes a motor coupled to at least one rotatable metal member and configured to generate low-middle frequency vibration waves.