Interactive Whiteboard Sub-Window for Stable Element Display
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Solution Overview
Problem
Interactive whiteboards face inconvenience when elements move or disappear during operations within the writing region, causing user discomfort due to the need for frequent roaming and page switching.
Innovation Solution
A method and device that allow users to select and display elements in a sub-window smaller than the whiteboard interface, which remains visible and stable during operations and page switching, enabling continuous exhibition without requiring repeated retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the writing region area is enlarged to contain elements during roaming operation, then the element can be fully displayed, but the element will still move out of the current display region and requires frequent retrieval operations
Solution Approach 1:
The patent divides the display into two independent regions: a fixed display region that remains stable and a movable writing region that can be operated freely. The fixed display region shows selected elements while the writing region allows roaming operations, eliminating the need for elements to be retrieved repeatedly.
Solution Approach 2:
The patent extracts selected elements from the movable writing region and displays them in a separate fixed display region. This extraction allows elements to be displayed stably while the writing region can be operated independently without causing element displacement.
2Area of stationary object
If the writing region area is enlarged to contain elements, then the element can be fully displayed, but the element will disappear when writing pages are switched and requires frequent page switching
Solution Approach 1:
The patent segments the display into a fixed display region and a movable writing region. The fixed display region maintains selected elements during page switching while the writing region can switch pages freely, eliminating the need for frequent element retrieval after page changes.
Solution Approach 2:
The patent extracts elements from the writing region and displays them in the fixed display region, allowing elements to persist across page switches. This extraction ensures elements remain visible even when the writing region switches pages.
3Ease of operation
If elements are displayed in the writing region, then the element can be accessed during operations, but the element will move or disappear with user operations causing inconvenience
Solution Approach 1:
The patent segments the display into a stable fixed display region and a movable writing region. Elements are displayed in the fixed display region to maintain position stability while the writing region allows free operations without causing element displacement.
Solution Approach 2:
The patent extracts elements from the movable writing region and displays them in the fixed display region. This extraction ensures element position stability while maintaining accessibility, as elements remain in the fixed display region even during writing region operations.
Data Source
AI summary
A control method and device of an interactive white board is provided. The method includes receiving a first selection operation and a first windowing operation on a whiteboard application interface, in response to a handwriting of a first target element overlapping a first sub-window, generating an overlapping part of the handwriting behind the first sub-window, and the first sub-window is displayed in a front of the whiteboard application interface. The method solves the technical problem in the related art that when some operations are performed in the whole current writing region, and the elements on the screen will move or disappear accordingly, causing inconvenience to the user.