Information Processing Device Region-Based Zoom and Scroll Control
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Solution Overview
Problem
Existing information processing devices cannot separately perform zooming and scrolling of images, limiting user operability when navigating large datasets like maps.
Innovation Solution
An information processing device with an operation recognition part, determination part, and control part that distinguishes between operations starting within a predetermined region on the screen, allowing simultaneous or separate zooming and scrolling based on user input, using a mochi-cursor mechanism to differentiate between mochi-drag, normal drag, press and hold, and tap operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If zooming and scrolling are performed simultaneously through drag operation, then navigation efficiency is improved, but the ability to separately control zooming and scrolling is lost
Solution Approach 1:
The patent divides the display screen into a predetermined region (where zooming is active) and a non-predetermined region (where scrolling is active). By segmenting the screen based on touch operation location, the system enables simultaneous zooming and scrolling operations while maintaining separate control capability through spatial differentiation of operation zones.
Solution Approach 2:
Different regions of the display screen are assigned different functional qualities: the predetermined region responds to touch operations by performing zooming, while the non-predetermined region responds by performing scrolling. This local differentiation allows the same drag operation to be interpreted differently based on where it originates, resolving the contradiction between simultaneous operation and separate control.
2Ease of operation
If a single drag operation performs both zooming and scrolling, then operation simplicity is improved, but operational flexibility is reduced
Solution Approach 1:
The system dynamically adjusts its response based on the touch operation's starting position. When a user performs a drag operation from the predetermined region, the system dynamically executes zooming; when from the non-predetermined region, it dynamically executes scrolling. This dynamic adaptation maintains operational simplicity while providing flexibility through position-dependent behavior.
Solution Approach 2:
The drag operation serves multiple functions depending on its origin: it can trigger either zooming or scrolling based on whether it starts in the predetermined region or not. This multi-functionality allows a single operation type to achieve different objectives, enhancing both simplicity and flexibility simultaneously.
Data Source
AI summary
An information processing device includes: an operation recognition part that recognizes a user operation for a display screen of a display unit; a determination part that determines whether the user operation recognized by the operation recognition part is an operation starting from within a predetermined region of the display screen or not; and a control part that scrolls information being displayed on the display screen while changing a level of detail of the information if the determination part determines that the user operation is the operation starting from within the predetermined region in response to the user operation, and performs changing of the level of detail of the information or scrolling of the information if the determination part determines that the user operation is not the operation starting from within the predetermined region in response to the user operation.