Partial Region Storage for Document Navigation on Portable Terminals
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Solution Overview
Problem
Viewing and navigating documents on portable terminals with small screens is cumbersome due to the need for frequent screen movements and lack of efficient methods to return to previous display states, especially when dealing with A4 size documents and images.
Innovation Solution
An image display apparatus and method that includes an operation portion for accepting input instructions, a display portion for moving and storing partial image regions, and a control portion for managing display states, allowing users to store and return to desired partial image regions, reducing user burden by enabling free selection and storage of return destinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the screen displays a small portion of a large document, then the user can read individual sentences in detail, but the user must repeatedly move the screen to navigate between lines and paragraphs
Solution Approach 1:
The system automatically determines and executes the next screen display position based on the current display state and document structure, without requiring manual user input for navigation. The control unit predicts the optimal next view based on reading direction and document layout, performing the navigation action in advance of user need.
Solution Approach 2:
The screen display system automatically manages its own navigation by detecting when the current display reaches the end of a line or paragraph and autonomously determines the next display position. The system serves itself by automatically transitioning between screen views without requiring continuous user intervention for navigation.
2Adaptability or versatility
If the user manually controls screen movement to navigate documents, then the user can control the viewing position, but the operational burden increases due to frequent manual operations
Solution Approach 1:
The system automatically manages screen navigation by detecting when the current display reaches the end of a line or paragraph and autonomously determines the next display position. The system serves itself by automatically transitioning between screen views without requiring continuous user intervention for navigation.
Solution Approach 2:
The system changes the display parameters (position, zoom level, orientation) automatically based on the current viewing state and document structure. The control unit adjusts these parameters without manual input, transitioning between different display configurations to optimize the viewing experience while reducing user operational effort.
3Productivity
If the system automatically determines the next screen position, then the navigation efficiency improves, but the system complexity increases due to analysis requirements
Solution Approach 1:
The system automatically determines and executes the next screen display position based on the current display state and document structure, without requiring manual user input for navigation. The control unit predicts the optimal next view based on reading direction and document layout, performing the navigation action in advance of user need.
Solution Approach 2:
The system continuously monitors the current display state and uses this feedback to automatically determine the appropriate next display position. The control unit receives information about the current viewing state and automatically adjusts the display accordingly, creating a closed-loop system that adapts to user reading behavior without requiring explicit instructions.
Data Source
AI summary
According to the image display method, apparatus, and program of the present invention, when a user moves a display location to partially display text that is described in an image over a wide area, the burden of the user in performing return operations with respect to the screen display can be reduced by freely selecting and storing a return destination of the screen from among displayed partial regions in accordance with a user instruction, and thereafter returning to the display of the stored partial region in accordance with an instruction of the user.