Mobile Terminal Actuator Layout for Audio-Synced Vibration
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Solution Overview
Problem
Conventional mobile terminals generate monotonous vibrations and fail to provide dynamic resonance effects due to inadequate actuator placement, limiting their utility in multimedia applications.
Innovation Solution
An apparatus and method that utilize at least two actuators strategically arranged and controlled based on sound characteristics, such as frequency and volume, to generate varied vibrations during music playback and game execution, ensuring a dynamic vibration experience for the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single actuator is used for vibration generation, then the device structure is simple, but the vibration variety and dynamics are insufficient
Solution Approach 1:
The vibration generation function is segmented into multiple actuators (first actuator and second actuator) positioned at different locations. Each actuator can be independently controlled to generate different vibration patterns, enabling diverse vibration effects while maintaining manageable system complexity through modular design
Solution Approach 2:
The system dynamically selects which actuator(s) to activate based on real-time analysis of audio signal frequency characteristics. The controller adjusts actuator activation dynamically according to the music or sound being played, transforming a static single-function system into a dynamic multi-function system that adapts to different audio content
2Reliability
If the actuator is mounted without considering arrangement position, then the manufacturing process is simple, but the resonance effect is insufficient
Solution Approach 1:
Different actuators are positioned at specific locations within the mobile terminal to optimize resonance effects for different frequency ranges. The first actuator and second actuator are mounted at distinct positions that correspond to their respective frequency optimization ranges, ensuring that each actuator operates at its optimal resonance point for the sounds it is designed to enhance
Solution Approach 2:
The actuator positions and frequencies are pre-configured during device design and manufacturing based on anticipated audio content characteristics. The controller is pre-programmed with frequency analysis algorithms that automatically match incoming audio signals to the appropriate pre-positioned actuators, eliminating the need for complex real-time adjustments while maintaining optimal resonance effects
3Adaptability or versatility
If vibration is generated without considering sound characteristics, then the control process is simple, but the vibration experience is monotonous
Solution Approach 1:
The system continuously analyzes the frequency characteristics of the audio signal being played and uses this feedback to dynamically control which actuators are activated. The controller monitors the audio output in real-time and adjusts actuator activation accordingly, creating a closed-loop system where vibration generation is directly responsive to the actual sound characteristics being produced
Solution Approach 2:
The system changes operational parameters (which actuator is active) based on the frequency parameters of the audio signal. When the audio frequency matches the optimization frequency of a particular actuator, that actuator is activated; when frequencies change, the system switches to different actuators, dynamically adjusting the vibration parameters to match the audio content
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 allows for dynamic vibration feedback to the user by selectively driving actuators based on sound characteristics, enhancing the user experience in multimedia applications by providing a more engaging and responsive vibration effect.
Implementation Method 1
at least two actuators including first and second actuators for generating vibration, an actuator driver for driving the actuators according to an actuator drive signal
Implementation Method 2
an audio unit for converting audio data into an audio signal upon generation of a sound play request and outputting the audio signal
Implementation Method 3
Vibration in conventional mobile terminals may produce various resonance effects according to the arrangement and mounting position of an actuator
Data Source
AI summary
A method and apparatus for generating vibration based on sound characteristics in a mobile terminal are provided. The method includes converting audio data into an audio signal upon generation of a sound play request; determining whether to generate vibration based on a sound volume of the audio signal; setting an actuator to be driven for the audio signal among at least two actuators based on frequency distribution characteristics of the audio signal if it is determined upon determining to generate the vibration; and driving the actuator being set for the audio signal when outputting the audio signal.