Electronic Book Change Visualization on Small Screens
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Solution Overview
Problem
In mobile terminals with small screen sizes, such as smartphones, it is difficult for users to visualize changes in an electronic book when editing operations like moving images between pages occur, as the layout of multiple pages cannot be displayed simultaneously, making it hard to recognize overall changes.
Innovation Solution
An information processing apparatus with an editing unit, display unit, extraction unit, display control unit, and classifying unit that displays changes in an electronic book by extracting and classifying changes before and after editing, allowing users to distinguish between changes on pages displayed and those not displayed, thereby facilitating the visualization of editing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If multiple pages of an electronic book are displayed simultaneously to show changes, then the user can recognize changes in the whole electronic book, but the small screen size of mobile terminals makes it difficult to display multiple pages while maintaining page successiveness
Solution Approach 1:
The patent segments the display area into multiple regions, with each region showing a different page of the electronic book. This allows multiple pages to be displayed simultaneously on the small mobile terminal screen while maintaining the ability to see changes across the entire book.
Solution Approach 2:
The patent transitions from displaying one page at a time (two-dimensional sequential display) to displaying multiple pages simultaneously (multi-dimensional parallel display). This dimensional change enables users to view changes across multiple pages at once, overcoming the limitation of small screen size.
2Adaptability or versatility
If pages are exchanged or deleted during editing, then the layout of the electronic book is updated, but it becomes difficult for users to realize changes in the whole electronic book on a small screen
Solution Approach 1:
The patent implements a feedback mechanism where the display unit shows not only the current page being edited but also other pages that are affected by the editing operations. This provides visual feedback to users about how their layout changes (page exchanges, deletions) impact the overall electronic book structure.
Solution Approach 2:
The patent introduces an intermediary display mechanism that mediates between the editing operations and the user's perception. By displaying multiple pages simultaneously and indicating their relationships, the system acts as an intermediary that makes the effects of layout changes visible and understandable.
3Productivity
If the total number of pages increases or decreases during editing, then the electronic book structure is updated, but users cannot easily recognize these changes on a small mobile terminal screen
Solution Approach 1:
The patent uses color changes or visual indicators to highlight pages that have been added, removed, or modified during editing. This allows users to quickly recognize changes in the total number of pages and the structure of the electronic book without having to manually count or compare pages.
Data Source
AI summary
An information processing apparatus making it possible for a user to easily realize changes in the whole electronic book accompanying an editing operation performed by the user. Changes in the edited electronic book are extracted and displayed on the display unit. The extracted changes are classified into first changes related to pages before a displayed page and second changes related to pages after the displayed page. The changes are caused to be displayed on the page displayed on the display unit such that the changes can be discriminated as any of the first changes or the second changes.