Haptic Feedback Actuator Control for Touch Response Areas
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Solution Overview
Problem
Electronic user devices face challenges in providing accurate haptic feedback when touch inputs occur between or between multiple haptic actuators on a display screen, leading to diluted feedback, and the need to differentiate between areas that require haptic feedback, such as virtual keyboards, and those that do not, like images or videos.
Innovation Solution
The system selectively activates haptic feedback actuators based on touch position data, identifying specific touch response areas on the display screen, including virtual keyboards, and adjusts feedback according to user-defined preferences, ensuring precise feedback alignment with touch inputs and adapting to dynamic changes in graphical content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If haptic actuators are activated in response to touch inputs between or between multiple actuators, then haptic feedback coverage is improved, but feedback precision is diluted
Solution Approach 1:
The system introduces an intermediary computational layer that processes touch position data and determines the appropriate haptic actuator to activate. This mediator analyzes the touch location relative to haptic actuator positions and decides whether to activate a single actuator or multiple actuators based on predefined criteria, thereby resolving the conflict between coverage and precision without direct physical modification to the actuators themselves.
Solution Approach 2:
The haptic feedback system dynamically adjusts its behavior based on touch position data. When a touch occurs between actuators, the system dynamically determines whether to activate one or multiple actuators based on the specific location and context, allowing the feedback characteristics to change adaptively rather than following a fixed rule, thus balancing coverage and precision requirements.
2Adaptability or versatility
If haptic feedback is provided across the entire display screen, then user interaction coverage is improved, but energy consumption increases
Solution Approach 1:
The system applies local quality by providing haptic feedback selectively in specific regions of the display screen rather than uniformly across the entire screen. Based on touch position data and the type of graphical content being interacted with, the system activates haptic actuators only in relevant local areas, thereby maintaining adaptability for different interaction scenarios while significantly reducing overall energy consumption compared to full-screen haptic feedback.
Solution Approach 2:
The system employs partial action by activating only the necessary subset of haptic actuators required to provide feedback for a given touch input, rather than activating all actuators across the display. This selective activation based on touch position and content type achieves the required adaptability while minimizing energy expenditure by avoiding excessive actuator activation.
3Reliability
If haptic feedback is provided for all touch inputs, then user interaction consistency is improved, but feedback relevance decreases
Solution Approach 1:
The system performs preliminary analysis of touch position data and graphical content characteristics before providing haptic feedback. By pre-determining which touch inputs warrant haptic feedback based on their location and the type of content being interacted with, the system maintains consistency in its decision-making process while ensuring that feedback is only provided when relevant, thereby preventing information loss through irrelevant feedback activation.
Solution Approach 2:
The system implements a feedback mechanism that continuously monitors touch inputs and adjusts haptic feedback provision based on the relationship between touch position and graphical content. This closed-loop approach ensures consistent application of feedback rules while maintaining relevance by using the feedback information to determine whether haptic activation is appropriate for the current interaction context.
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 provides accurate and precise haptic feedback at the correct locations on the screen, enhancing user interaction by ensuring feedback is only generated where intended, thus improving the overall user experience.
Implementation Method 1
The display screen includes a plurality of haptic actuators configured to provide haptic feedback outputs in response to touch inputs received at the display screen
Data Source
AI summary
Systems, apparatus, and methods for providing haptic feedback at electronic user devices are disclosed. An example apparatus includes processor circuitry to perform operations to instantiate touch response area detection circuitry to identify a touch response area of a display screen; haptic feedback analysis circuitry to detect that a location of a touch on the display screen is within the touch response area and output an instruction to cause a haptic feedback response; and haptic feedback control circuitry to, in response to the instruction, cause a haptic feedback actuator to generate the haptic feedback response based on the location of the touch and a property of the haptic feedback response.