Joystick Tilting Control for Electronic Book Page Navigation
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Solution Overview
Problem
Existing information processing devices lack operability when viewing contents with multiple pages, such as electronic books, as they require complex navigation and viewing directions, differing from simple Web page displays.
Innovation Solution
An information processing device and method that utilizes a joystick for tilting operations to control the display screen, changing the screen display based on the tilting direction and position within a page, allowing for natural page turning and scrolling similar to reading a physical book.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If complex navigation rules and viewing direction controls are implemented for multi-page contents, then page navigation capability is improved, but ease of operation deteriorates
Solution Approach 1:
The joystick is designed to perform multiple functions: it can detect tilting operations for page turning, scrolling operations, and other navigation functions. This single input device handles various navigation tasks that would otherwise require multiple controls, simplifying the user interface while maintaining comprehensive navigation capability
Solution Approach 2:
The system changes operational parameters based on the state of the display. When the display region is at the top or bottom of a page, the joystick's tilting operation triggers page turning instead of scrolling. This dynamic parameter adjustment allows the same input action to produce context-appropriate results, improving ease of operation without sacrificing navigation versatility
2Measurement precision
If multiple control operations are required for different viewing directions, then navigation precision is improved, but device complexity increases
Solution Approach 1:
Multiple control functions (page turning, scrolling, navigation) are merged into a single joystick input device. The joystick's ability to detect tilting in multiple directions and intensities provides precise navigation control without requiring separate buttons or controls for each function, thus maintaining navigation precision while reducing device complexity
Solution Approach 2:
The joystick acts as an intermediary between the user and the complex page navigation system. It translates simple physical tilting motions into context-aware navigation commands, shielding the user from the complexity of multiple viewing directions and page turning rules while maintaining precise control
Data Source
AI summary
Methods and apparatus provide for tilting of a joystick. When there is room for scrolling in the tilting direction, a screen is scrolled in the same direction as the tilting direction. When there is no room for scrolling, and a previous or subsequent region continuous with a present display region in the contents of a book is present within double-spread pages at the time point in question, display is switched to the previous or subsequent region. When the previous or subsequent region continuous with the present display region is not present within the double-spread pages, and the tilting direction is parallel with the opening of the pages, a page turning animation is inserted, and the display region is switched. When the tilting direction is not parallel with the opening of the pages, display is directly switched.