Display Area Speed Control Near Image Margins
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Solution Overview
Problem
Users face inefficiency and disorientation when enlarging or reducing a display area in large images, as they may not be aware of the predefined magnification scale range, leading to stress and confusion.
Innovation Solution
An information processing device that uses a hierarchical image structure and user-controlled input devices to smoothly adjust the display area, with features like analog sticks and directional keys, allowing for efficient enlargement, reduction, and scrolling, while defining a restriction area to manage movement speed and provide intuitive feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the display area is enlarged or reduced without speed restriction, then the user can quickly navigate through large images, but the user may become disoriented and unaware of the current magnification scale range
Solution Approach 1:
The patent applies beforehand cushioning by defining a restriction area near the display margin and reducing movement speed when the display area enters this region. This creates a gradual deceleration effect before the user reaches the boundary, preventing abrupt stops and maintaining user orientation without completely restricting navigation speed
Solution Approach 2:
The patent implements feedback by providing visual cues (such as displaying the restriction area or changing display characteristics) and haptic feedback when the display area approaches the boundary. This allows users to understand their current position and magnification scale range while maintaining efficient navigation
2Ease of operation
If the display area movement speed is reduced near boundaries, then the user can avoid disorientation and understand the current position, but the navigation efficiency decreases
Solution Approach 1:
The patent applies local quality by implementing speed restriction only in the restriction area near the display margin, while allowing full navigation speed in other regions. This localized approach maintains overall navigation efficiency while providing necessary control awareness at critical boundaries
Solution Approach 2:
The patent implements dynamic speed adjustment based on the display area's position relative to the restriction area. The movement speed is continuously adjusted rather than fixed, allowing fast navigation when远离 boundaries and slower movement when approaching them, optimizing both efficiency and user orientation
3Manufacturing precision
If the display area reaches the display margin abruptly, then the system can clearly define the boundary, but the user experiences stress and confusion
Solution Approach 1:
The patent applies beforehand cushioning by creating a restriction area that gradually reduces movement speed before the display area reaches the display margin. This prevents abrupt stops and provides a smooth transition, eliminating user stress while maintaining clear boundary definition
Solution Approach 2:
The patent implements preliminary anti-action by providing visual and haptic feedback cues before the display area reaches the boundary. This allows users to anticipate the upcoming boundary and adjust their control input accordingly, preventing the stress of sudden stops
Data Source
Figure 1
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AI summary
A range having a predetermined width close to a display margin is defined in an image as a restriction area. The restriction area 120 determines whether a current display area enters the restriction area. When the display area enters the restriction area, the moving speed determination unit 122 reduces the speed of moving the display area in accordance with the extent that the display area enters the restriction area. When the request for moving the display area is suspended while the display area enters the restriction area, the bouncing speed determination unit 126 determines the moving speed so that the display area is bounced in a direction away from the restriction area at a speed determined by the extent that the display area enters the restriction area. A frame coordinate computation unit 124 computes frame coordinates of a display area that should be newly displayed, based on the moving speed determined by the moving speed determination unit 122 and the bouncing speed determination unit 126.