TWS Bone Conduction Earphone Wireless Audio Transmission
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Solution Overview
Problem
Existing TWS earphones primarily use air conduction, leading to ear discomfort and potential hearing damage from prolonged use.
Innovation Solution
A TWS bone conduction earphone design that employs a bone conduction module with a power amplifier and vibrator to transmit sound through ossicles via Bluetooth technology, eliminating the need for earphone cables and reducing hearing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If air conduction is used in TWS earphones, then sound transmission is achieved, but ear discomfort and hearing damage occur with prolonged use
Solution Approach 1:
The patent introduces bone conduction as an intermediary transmission path. Instead of directly transmitting sound through the air to the eardrum (air conduction), the vibration is transmitted through the skull bones to the inner ear, bypassing the eardrum and external acoustic meatus. This mediator approach eliminates the harmful effects on the ear canal and eardrum while maintaining sound transmission functionality.
Solution Approach 2:
The patent replaces the acoustic-mechanical system of air conduction with a bone-mechanical conduction system. The air vibration mechanism is substituted with direct bone vibration transmission through the temporal bone to the cochlea, changing the fundamental transmission medium from air to bone tissue, thereby avoiding ear discomfort and hearing damage.
2Reliability
If wired earphones are used, then stable connection is achieved, but cable entanglement and inconvenience occur
Solution Approach 1:
The patent extracts and removes the physical cable connection from the audio transmission system. By utilizing Bluetooth wireless technology, the cable is completely taken out of the system, eliminating cable entanglement and usage inconvenience while maintaining connection stability through wireless communication protocols.
Solution Approach 2:
The patent replaces the mechanical cable connection system with an electromagnetic wireless communication system. Bluetooth technology substitutes the physical wired connection, eliminating the need for data cables while maintaining stable audio transmission through wireless electromagnetic signals.
3Device complexity
If traditional earphone design is used, then simple structure is achieved, but ear discomfort occurs with prolonged wear
Solution Approach 1:
The patent introduces bone conduction as an intermediary transmission path. Instead of directly transmitting sound through the air to the eardrum (air conduction), the vibration is transmitted through the skull bones to the inner ear, bypassing the eardrum and external acoustic meatus. This mediator approach eliminates the harmful effects on the ear canal and eardrum while maintaining sound transmission functionality.
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 solution provides a convenient and safe sound transmission method that avoids ear discomfort and hearing damage, enhancing user experience by using bone conduction to transmit sound directly to the skull, while maintaining wireless freedom.
Implementation Method 1
The bone conduction module vibrates according to the audio signal for transmitting sounds through ossicles
Data Source
AI summary
A TWS bone conduction earphone includes an earphone housing and an earphone body. The earphone housing is configured to accommodate the earphone body. The earphone body includes a storage module, a Bluetooth module and a bone conduction module. The storage module is configured to store a Bluetooth address corresponding to a Bluetooth device to be connected and paired. The Bluetooth module is configured to establish a communication with the corresponding Bluetooth device according to the Bluetooth address to obtain an audio signal from the Bluetooth device. The bone conduction module vibrates according to the audio signal for transmitting sounds through ossicles. Using Bluetooth technology, bone conduction wireless answering is realized, without the restriction of the earphone cable. It is more convenient to use, and the sound transmission is realized through bone conduction without damaging hearing.