Haptic Key Plate Layout for Distinct Keystroke Feedback
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Solution Overview
Problem
Existing electronic devices lack an effective method to provide distinct and intuitive haptic feedback to users through key strokes, leading to confusion and errors in input recognition.
Innovation Solution
Incorporating a haptic actuator system within the electronic device that includes a haptic plate and key caps, where the haptic plate is vibrated by the actuator to provide specific haptic responses based on stroke depth, allowing for independent key usability and real-time feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vibration feedback is provided through a joystick or controller, then haptic feedback is provided to the user, but the feedback is not distinct or intuitive for key stroke recognition
Solution Approach 1:
The haptic plate is divided into multiple independent vibration regions corresponding to different key positions. Each region can be vibrated independently by the haptic actuator, allowing distinct haptic feedback for each key stroke. This segmentation enables the system to provide location-specific vibration patterns that clearly indicate which key was pressed, resolving the ambiguity in input recognition.
Solution Approach 2:
The system applies different vibration characteristics to different regions of the haptic plate based on the specific key pressed. The haptic actuator generates vibration at specific locations on the haptic plate that correspond to the pressed key, creating localized haptic feedback. This local quality differentiation provides intuitive feedback that helps users distinguish between different key inputs, improving both reliability and ease of operation.
2Ease of operation
If a haptic actuator is added to provide haptic feedback, then user feedback is enhanced, but device complexity increases
Solution Approach 1:
The single haptic actuator serves multiple functions: it generates vibration for haptic feedback, transmits the vibration through the haptic plate to specific key regions, and provides tactile confirmation for different key presses. By using one multi-functional component instead of multiple separate actuators for each key, the system achieves comprehensive haptic feedback capability while minimizing the increase in device complexity.
Solution Approach 2:
The haptic plate acts as an intermediary component between the single haptic actuator and the multiple keys. The actuator generates vibration that is transmitted through the haptic plate to the specific key region that was pressed. This intermediary structure allows one actuator to effectively control haptic feedback across multiple keys, reducing overall system complexity while maintaining full haptic functionality.
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 enhances user interaction by providing clear and distinct haptic feedback, improving input recognition and reducing errors by differentiating between intended and unintended key strokes.
Implementation Method 1
a first haptic actuator configured to generate vibration when at least one of the plurality of keys is stroked
Data Source
AI summary
An electronic may include: a housing; a plurality of keys positioned in the housing and each including a key cap configured to move along a stroke direction during a stroke; a first haptic actuator configured to generate vibration during a stroke of at least one key among the plurality of keys; and a haptic plate configured to vibrate by the first haptic actuator and configured to vibrate a key cap of at least one stroked key among the plurality of keys.