Vibration-Isolated Input Assembly for Clean Voice Data
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Solution Overview
Problem
Existing input devices with vibration motors and microphones suffer from noise interference, where the vibration of the circuit board generates noise that contaminates voice data acquired by the microphone.
Innovation Solution
An input device design that includes a damper between the circuit board and a support member to prevent noise from being generated and included in voice data, utilizing a buffer member to reduce sound generation from input stick operations, and strategically positioning microphones to minimize noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a vibration motor is added to provide vibration feedback, then user experience is improved, but noise is generated that contaminates voice data
Solution Approach 1:
A damper is introduced as an intermediary component between the circuit board and the housing to absorb vibrations generated by the vibration motor, preventing these vibrations from being transmitted to the microphone and thus eliminating noise contamination in voice data while preserving the vibration feedback function
Solution Approach 2:
The harmful vibration noise is extracted and isolated from the voice acquisition path by positioning the damper specifically between the vibration source (circuit board) and the microphone, allowing the vibration motor to continue providing feedback while its noise is separated from the audio signal
2Measurement precision
If the microphone is positioned close to the user's mouth for better voice recognition, then voice recognition accuracy is improved, but noise from device components increases
Solution Approach 1:
The damper serves as a protective intermediary that creates a vibration-isolated zone around the microphone, allowing the microphone to be positioned optimally close to the user's mouth for accurate voice recognition while the damper blocks harmful vibrations from device components from reaching the microphone
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
Effectively suppresses noise in voice data acquisition, enhancing the quality of voice recognition and communication by reducing unwanted sound interference from device vibrations and stick operations.
Implementation Method 1
a damper disposed between the circuit board and the first support member
Data Source
AI summary
When a vibration motor is driven, noise due to a contact between a circuit board and a support member is prevented from being generated and included in voice data. An input device includes a circuit board, a vibration motor, a microphone, a frame to which the circuit board is attached, and a damper disposed between the circuit board and the frame.