Localized Haptic Feedback via Mechanical Wave Superposition
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Solution Overview
Problem
Existing haptic feedback technologies consume large amounts of energy due to the use of built-in motors for vibration, which negatively impacts user experience.
Innovation Solution
A method and apparatus that utilize ultrasonic waves or mechanical waves at other frequency bands to create haptic signals by superposing a first mechanical wave generated by the user's body or object with a second mechanical wave, allowing for effective haptic feedback with reduced energy consumption and minimizing the vibration of the entire object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a built-in motor is used to drive vibration of the entire apparatus for haptic feedback, then haptic feedback can be provided to the user, but energy consumption increases and user experience deteriorates
Solution Approach 1:
The patent segments the haptic feedback function from the entire apparatus to a localized touch position. Instead of vibrating the whole device through a built-in motor, the system generates mechanical waves only at the specific location where the user touches the screen, achieving haptic feedback with minimal energy consumption and avoiding unwanted whole-device vibration.
Solution Approach 2:
The patent applies local quality by concentrating the haptic effect precisely at the touch position rather than distributing it throughout the entire apparatus. The mechanical wave generation is localized to the touched area, providing targeted haptic feedback that improves user experience while reducing overall energy consumption.
2Reliability
If a built-in motor drives vibration of the entire apparatus, then haptic feedback is achieved, but the entire object vibrates causing poor user experience
Solution Approach 1:
The patent extracts the haptic feedback function from the built-in motor system and implements it through localized mechanical wave generation at the touch position. This extraction eliminates the harmful whole-apparatus vibration while preserving the essential haptic feedback effect, as the mechanical waves are generated only where needed.
Solution Approach 2:
The patent replaces the traditional mechanical vibration system (built-in motor) with a mechanical wave generation system. Instead of using a motor to physically vibrate the entire apparatus, the system generates mechanical waves at the touch position that interact with the user's finger, providing haptic feedback without the harmful side effect of whole-device vibration.
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 approach enables the formation of effective haptic feedback with minimal energy consumption, enhancing user experience by avoiding the negative impacts of entire-object vibration and allowing for precise control of haptic signals based on touch position information.
Implementation Method 1
a first mechanical wave generated by the user body
Implementation Method 2
superposing a first mechanical wave generated by the user's body or object with a second mechanical wave
Implementation Method 3
a first mechanical wave generated by the object
Implementation Method 4
superposing a first mechanical wave generated by the user's body or object with a second mechanical wave
Implementation Method 5
sending, to the object through a medium, a second mechanical wave wherein the medium comprises at least one part of the user body
Data Source
AI summary
The present application provides a haptic feedback generation method and apparatus, and relates to the field of haptic feedback. The method comprises: in response to that a user body touches an object, sending a second mechanical wave that is used to form a haptic signal at a touch position with a first mechanical wave generated by the user body. A source for forming the haptic signal can be at the touch position, to cause that an effective haptic feedback to a user can be formed with little energy consumption, and poor experience of the user caused by vibration of an entire object is avoided.