Vibration Sensor Plate for Voice Recognition Without Acoustic Holes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional voice recognition systems require acoustic holes and precise microphone placement for effective voice transmission and recognition, which can limit design flexibility and increase complexity.
Innovation Solution
A voice recognition system utilizing a vibrating plate structure with a vibration sensor, such as a displacement sensor, attached to detect vibrations caused by voice waves, eliminating the need for acoustic holes and allowing for directivity in the user direction, thereby enhancing recognition accuracy without restricting the device's design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If acoustic holes and multiple microphones are used for voice transmission, then voice recognition range and accuracy are improved, but device complexity and design constraints increase
Solution Approach 1:
The patent extracts the voice detection function from traditional acoustic holes and microphones, and implements it through a vibration sensor that detects plate vibrations directly. This eliminates the need for separate acoustic holes and multiple microphones, reducing device complexity while maintaining voice recognition accuracy.
Solution Approach 2:
The plate structure serves multiple functions: it acts as both the display device cover and the voice detection surface. The vibration sensor mounted on the plate can detect vibrations from any direction, providing omnidirectional voice recognition without requiring multiple microphones positioned at specific locations.
2Adaptability or versatility
If multiple microphones with adjusted relative locations are used, then voice recognition range is improved, but manufacturing complexity increases
Solution Approach 1:
The patent divides the voice detection function into vibration detection components that can be independently positioned on the plate. The vibration sensor can detect vibrations from multiple directions simultaneously, eliminating the need for multiple microphones with precisely adjusted relative locations, thereby simplifying manufacturing.
Solution Approach 2:
The invention transitions from three-dimensional microphone positioning in space to two-dimensional vibration detection on the plate surface. The vibration sensor detects plate vibrations that propagate from voice waves, providing omnidirectional coverage without requiring complex spatial arrangement of multiple components.
3Reliability
If acoustic holes are provided for voice transmission, then voice transmission quality is improved, but design flexibility is reduced
Solution Approach 1:
The patent replaces the acoustic transmission mechanism (acoustic holes) with a mechanical vibration detection mechanism. The vibration sensor detects plate vibrations caused by voice waves, eliminating the need for acoustic holes and providing full design flexibility while maintaining reliable voice transmission quality.
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
This solution enables efficient voice recognition without the need for acoustic holes, allowing for flexible design and improved signal fidelity by focusing on vibrations directly from the user, enhancing recognition accuracy and reducing system complexity.
Implementation Method 1
a plate structure that vibrates based on propagation of a voice wave from a user
Implementation Method 2
a vibration sensor provided to be in contact with the plate structure to detect vibration of the plate structure
Implementation Method 3
The vibration sensor may comprise a displacement sensor
Data Source
AI summary
Disclosed are a voice recognition system and a display device using the same. The disclosed voice recognition system includes a plate structure, a vibration sensor, and a voice recognition device. The plate structure vibrates based on propagation of a voice wave generated from a user, and the vibration sensor is provided in contact with the plate structure to detect the vibration of the plate structure. The voice recognition device recognizes voice of the user by receiving a signal output from the vibration sensor.