Adjusting Displacement Rise Time for Haptic Feedback Expressiveness
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Solution Overview
Problem
Existing feedback technologies, such as those disclosed in Patent Literature 1, only provide vibration as feedback, lacking expressiveness and failing to convey meaningful information about user operations beyond acceptance.
Innovation Solution
A control device and method that adjust the displacement rise time of a contact region's vibration to enhance feedback expressiveness, allowing for varied sensations such as acuteness, lucidness, sharpness, sportiness, and metal, by controlling the time from initial displacement to maximum displacement during vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If vibration feedback is provided to inform user operation acceptance, then the basic feedback function is achieved, but the expressiveness and information content of the feedback is insufficient
Solution Approach 1:
The patent applies parameter changes by adjusting vibration characteristics (displacement rise time, amplitude, frequency) to convey different information. Specifically, the displacement rise time is modified to create distinct vibration sensations that communicate different system states or operation outcomes, thereby increasing feedback information content without adding hardware complexity
Solution Approach 2:
The patent implements dynamics by making the vibration feedback adjustable and variable rather than fixed. The control section dynamically modifies vibration parameters based on operation type, system state, or user preferences, allowing the same hardware to provide multiple levels of information expression through parameter variation
2Loss of information
If simple vibration is used as feedback, then the device structure remains simple, but the feedback lacks meaningful information beyond operation acceptance
Solution Approach 1:
The patent uses parameter changes to enhance feedback expressiveness by adjusting displacement rise time, amplitude, and frequency of the vibration. These parameter modifications allow the system to convey different types of information (e.g., operation success, error states, confirmation) using the same basic vibration mechanism, avoiding additional hardware complexity
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 significantly improves feedback expressiveness, enabling users to perceive distinct sensations based on adjusted control parameters, thereby enhancing the user experience.
Implementation Method 1
an actuator 130 configured to vibrate in accordance with an instruction from the control section 210
Data Source
AI summary
A control device including a control section configured to vibrate a contact region in a case where it is determined that an operation is performed on an input section by a target object coming into contact with the contact region, the input section having the contact region touched by the target object, wherein the control section adjusts displacement rise time as a control parameter for performing control of vibrating the contact region.