Palm-Based Graphics Change via Touch Sensing
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Solution Overview
Problem
Conventional computer mouse devices require physical movement on a surface for cursor control, which can be limiting and less intuitive compared to touch-based interactions, especially in modern touch display systems.
Innovation Solution
A user interface surface embedded with sensor circuitry and logic circuitry that detects palm-based and digit-based touch events, converting these into control signals for graphics changes on a display screen, effectively replacing the need for a computer mouse by allowing gesture recognition and haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a computer mouse is used with a cushion pad for cursor control, then physical traction and cursor movement are facilitated, but the interaction becomes less intuitive and more limited compared to touch-based interactions
Solution Approach 1:
The patent replaces the mechanical mouse system with a touch-sensitive surface that detects finger movements and gestures. The touch-sensitive surface uses capacitive or resistive sensing to detect touch events, substituting the mechanical ball or optical tracking system with an electronic sensing field that can detect various touch patterns including taps, swipes, and pressure variations.
Solution Approach 2:
The touch-sensitive surface serves multiple functions beyond basic cursor control, including gesture recognition for scrolling, zooming, and other graphical interactions. The system can differentiate between various touch patterns (single finger, multiple fingers, tapping, swiping) to provide diverse interaction modes, making the interface adaptable to different user needs and tasks.
2Ease of operation
If touch display screens are used for input control, then intuitive touch-based interactions are enabled, but the ability to detect subtle hand movements and provide precise cursor control is reduced
Solution Approach 1:
The patent implements different sensing zones or regions on the touch-sensitive surface with varying sensitivity or detection capabilities. Certain areas may be optimized for gross movements while others detect fine movements, allowing the system to provide precise cursor control in specific regions while maintaining overall touch intuitiveness across the entire surface.
3Adaptability or versatility
If palm-based touch events are detected for graphics changes, then intuitive gesture control is enabled, but the precision of digit-based interactions is reduced
Solution Approach 1:
The patent dynamically adjusts the interaction mode based on the detected gesture type. When a palm-based gesture is detected, the system enters a gesture recognition mode for coarse control. When a digit-based touch is detected, the system switches to precision mode for fine control. This dynamic switching allows the system to optimize for the appropriate level of precision based on the user's intended action.
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
Enables intuitive cursor control, scrolling, and other graphical interactions on a display screen through touch events, providing a more versatile and user-friendly interface by differentiating between gross and fine movements and recognizing patterns, thus enhancing user interaction with computing devices.
Implementation Method 1
capacitive-based sensing
Data Source
AI summary
An apparatus comprises, a user interface surface, sensor circuitry, and logic circuitry. The sensor circuitry to detect a palm-based touch event caused by a user's hand relative to the user interface surface to indicate a degree of coarseness for a graphics change, and detect a digit-based touch event caused by a digit of the user's hand relative to the user interface surface. The logic circuitry to, in response to the touch events indicating the palm is in a fixed position and a position of the digit, provide data associated with the graphics change.