Intelligent Headphone Bone Conduction Speech Sensing
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Solution Overview
Problem
Existing headphones lack the capability to efficiently interact with users through speech sensing and processing, limiting their ability to enhance listening experiences and provide secure, adaptive audio solutions.
Innovation Solution
Integration of a controller, accelerometer, and audio processor in headphones that can sense user speech and biometrics, allowing for intelligent interaction, secure biometric authentication, and adaptive audio processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional headphones without speech sensing capabilities are used, then device simplicity is maintained, but user interaction capability and listening experience enhancement are limited
Solution Approach 1:
The patent combines multiple functions (speech sensing via accelerometer, audio processing, and control) into a single headphone device. The accelerometer is integrated directly into the headphone structure to detect speech vibrations, eliminating the need for separate sensing devices and enabling enhanced user interaction while maintaining a unified device form factor.
Solution Approach 2:
The headphone device is designed to perform multiple functions: traditional audio playback, speech sensing through the accelerometer, biometric authentication, and adaptive noise reduction. This multi-functionality allows a single device to replace what would traditionally require multiple separate components, enhancing versatility without proportionally increasing complexity.
2Reliability
If speech sensing and biometric authentication features are added to headphones, then user authentication security and interaction intelligence are improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The accelerometer in the headphone detects vibrations from the user's skull when they speak, allowing the device to automatically sense and process speech without requiring external microphones or complex audio input systems. This self-service approach uses the user's own body as part of the sensing mechanism, simplifying the overall system architecture while enabling secure biometric authentication.
Solution Approach 2:
The patent replaces traditional acoustic microphone-based speech detection with a mechanical vibration sensing approach using an accelerometer. This substitution leverages the mechanical vibrations transmitted through the skull during speech, providing a more direct and secure biometric authentication method while reducing susceptibility to external noise interference.
3Measurement precision
If accelerometers and audio processors are integrated into headphones, then speech detection accuracy and adaptive audio processing are improved, but device weight and power consumption increase
Solution Approach 1:
The accelerometer is positioned specifically within the headphone earcup to optimally detect skull vibrations during speech. This localized placement ensures high measurement precision for speech detection while minimizing the amount of sensing material and component mass required, thereby reducing overall device weight compared to distributed sensing systems.
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 enhanced listening experiences, secure biometric authentication, and adaptive noise reduction and sound processing, improving user interaction and audio quality.
Implementation Method 1
an in-ear monitor configured with an accelerometer that can identify when you are talking by sensing vibrations from the bone conduction of your skull
Data Source
AI summary
An intelligent headphone may be configured at least with a headphone having a shape, size, and material to engage an ear of a user. The headphone may have at least a controller, accelerometer, and audio processor. The headphone accelerometer can be positioned to allow speech of the user to be sensed.