Sound-Synchronized Vibration Device Using Eccentric Motor
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Solution Overview
Problem
Existing vibration devices for generating sound-induced vibrations are expensive, bulky, and limited in providing customizable vibration effects matching the rhythm and beat of sound, making them inconvenient for personal use and transfer.
Innovation Solution
A lightweight and compact vibration device comprising a vibration module with a cushion, a vibration transmission part, and a vibration part driven by a motor with an eccentric weight, connected via elastic members, which receives digital sound signal processing from a portable terminal to generate synchronized vibrations through a controller and power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transducer-based sound vibration device is used, then vibration effects synchronized with sound can be achieved, but the device becomes expensive and bulky
Solution Approach 1:
The patent extracts the essential vibration generation function from complex transducer systems and implements it using a simple motor with eccentric weight mechanism. This removes unnecessary components (analog frequency filters, amplifiers, transducers) while retaining the core functionality of generating sound-synchronized vibrations, thereby reducing device weight and cost.
Solution Approach 2:
The patent uses digital signal processing to copy and analyze the sound signal characteristics, then generates vibration patterns that replicate the rhythmic and beat features of the original sound. This digital approach replaces expensive analog processing hardware with software-based solutions, reducing device complexity and weight.
2Reliability
If analog frequency filters and transducers are used, then sound-induced vibration can be generated, but manufacturing cost increases significantly
Solution Approach 1:
The patent replaces expensive, delicate transducer components with inexpensive, durable motor-based vibration generators. The motor with eccentric weight is a common, low-cost component that can be mass-produced, significantly reducing manufacturing costs while maintaining reliable vibration generation capability.
Solution Approach 2:
The patent substitutes complex mechanical transducer systems with a simpler motor-driven mechanical vibration system. By using a motor with an unbalanced weight, the system generates vibrations through basic mechanical principles rather than requiring sophisticated electromagnetic transducers, thereby reducing manufacturing complexity and cost.
3Device complexity
If passive response to analog sound signals is used, then vibration generation is simple, but user customization of vibration effects is impossible
Solution Approach 1:
The patent implements dynamic vibration patterns that can be adjusted in real-time based on sound signal analysis. The system continuously analyzes the digital sound signal and dynamically modifies vibration parameters (frequency, amplitude, pattern) to match the music's beat and rhythm, enabling both simplicity and adaptability simultaneously.
Solution Approach 2:
The patent incorporates a feedback mechanism where the digital sound signal is continuously analyzed and used to adjust the vibration output. The controller monitors the sound signal characteristics and modifies the motor's vibration parameters accordingly, creating a closed-loop system that adapts to the user's listening experience while maintaining simple operation.
4Ease of manufacture
If analog sound signal processing is used, then vibration generation is straightforward, but device portability and compactness are reduced
Solution Approach 1:
The patent replaces bulky analog signal processing hardware (frequency filters, amplifiers) with compact digital signal processing implemented in software. The digital approach allows complex signal analysis and vibration control to be performed in a small form factor, enabling portability while maintaining sophisticated vibration generation capability.
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 device provides precise and customizable vibration effects that enhance the user experience by transmitting vibrations effectively, is inexpensive to manufacture, and easy to carry due to its compact size, while eliminating the need for transducers.
Implementation Method 1
a vibration part configured to generate vibration and apply the generated vibration to the vibration transmission part
Implementation Method 2
generating vibration by a vibration part
Implementation Method 3
the fixing part and the vibration transmission part are connected to each other via at least one elastic member
Data Source
AI summary
Provided is a vibration device using sound and a system comprising the same. More particularly, the present invention relates to a vibration device for generating vibration using sound such that the beat of the sound can be felt, which is convenient to carry or transfer due to a lightweight and compact size thereof, is capable of generating vibration matching the beat of sound to which a user is currently listening, is furthermore capable of generating vibrations of various feelings matching the beat of sound according to user settings, thereby greatly enhancing effects that the user may feel, and is very inexpensive to manufacture, and a system comprising the vibration device.