Touch Screen Automatic Scrolling Control for E-Book Reading
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Solution Overview
Problem
Users experience finger fatigue and reduced display efficiency when frequently flipping pages on a mobile terminal while reading electronic books due to the small screen size, leading to periods where no text is shown.
Innovation Solution
A touch screen-based electronic book automatic scrolling control method that detects the leftmost and rightmost touch points to calculate a scrolling rate and automatically controls the page turning, allowing users to adjust the scrolling speed by holding the device, with options to enable or disable the feature through a sub-menu or key.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If users manually flip pages by sliding finger or pressing button, then page navigation is achieved, but finger fatigue occurs and display efficiency decreases
Solution Approach 1:
The electronic book system automatically performs page flipping without requiring user intervention. The system detects touch screen coordinates and autonomously controls the scrolling speed and direction, allowing the device to serve itself rather than requiring continuous manual input from the user.
Solution Approach 2:
The patent replaces the mechanical finger-sliding or button-pressing system with an automated coordinate-detection system. By detecting the positions of touch points on the screen and calculating scrolling rates based on coordinate changes, the system substitutes manual mechanical operations with automated computational control.
2Ease of operation
If automatic scrolling is implemented, then finger fatigue is reduced, but device complexity increases
Solution Approach 1:
The system leverages the existing touch screen interface for multiple purposes: both for user interaction and for automatic scrolling control. By using the same touch screen to detect scrolling intent and execute scrolling actions, the patent avoids adding separate dedicated hardware, thus reducing the increase in device complexity.
Solution Approach 2:
The system continuously monitors touch screen coordinates and uses this feedback to dynamically adjust scrolling behavior. By detecting changes in touch point positions and calculating scrolling rates based on this feedback, the system achieves smooth, responsive automatic scrolling without requiring complex predictive algorithms.
Data Source
AI summary
A touch screen-based electronic book automatic scrolling control method may comprise detecting a leftmost column of touch points of a touch screen to obtain an ordinate value yl of a touch point that has a smallest ordinate value; detecting a rightmost column of touch points of the touch screen to obtain an ordinate value yr of a touch point that has a largest ordinate value; and based on yl and yr, calculating a rate at which a content currently displayed on the screen will be scrolled down, and controlling the automatic scrolling down of an electronic book according to the calculated rate.