Nontransparent Touch Pad Stylus Input System
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Solution Overview
Problem
Current laptops with touch screens face inconvenience due to the touch screen swaying when using a stylus for input, necessitating an alternative input method for the stylus on the touch pad.
Innovation Solution
A computer system with a touch control module featuring a nontransparent touch pad that generates and converts stylus coordinates into screen coordinates, allowing the stylus to perform input on the touch pad and display the track on the screen, utilizing a stylus packet format recognized by the operating system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user writes on the touch screen with the stylus, then handwriting input is enabled, but the touch screen sways causing inconvenience
Solution Approach 1:
The patent introduces a touch pad as an intermediary device between the stylus and the touch screen. The touch pad receives stylus input and transmits it to the processor, which then displays the handwriting on the touch screen. This mediator prevents direct contact between the stylus and touch screen, eliminating the swaying problem while preserving handwriting input functionality.
2Adaptability or versatility
If the touch pad is made transparent to allow stylus input, then stylus detection is enabled, but the touch pad becomes less effective for finger input
Solution Approach 1:
The patent applies different optical properties to different parts of the input system. The touch pad is made non-transparent specifically for the stylus input area, while maintaining transparency or different characteristics for finger input areas. This local differentiation allows the touch pad to optimize performance for both stylus and finger inputs simultaneously.
Data Source
AI summary
The present invention discloses an input method for a computer system. The computer system includes an operating system, a screen and a touch control module. The touch control module includes a nontransparent touch pad. The method includes the following steps: generating, by the touch control module, a plurality of first coordinates corresponding to movement of a stylus; sending, by the touch control module, the plurality of first coordinates to the operating system according to a stylus packet format utilized by the operating system; converting, by the operating system, the plurality of first coordinates to a plurality of second coordinates corresponding to the screen; and displaying a track on the screen according to the plurality of second coordinates.