Bidirectional Display Apparatus Automatic Operation Input Synchronization
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Solution Overview
Problem
Existing both-direction display systems require unnecessary operations to manage and synchronize the display of external images and operation input objects, such as erasing unrelated comments when switching slides, and lack efficient methods for reverting or restoring drawings.
Innovation Solution
A both-direction display method and apparatus that detects screen operations to interlock and edit the operation input object, allowing it to follow changes in the external image, eliminating the need for additional editing operations and enabling seamless transitions between drawing and non-drawing states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the operation input object is not updated when the external image changes, then the external image can be changed freely, but the operation input object becomes unrelated to the external image requiring additional erasing operations
Solution Approach 1:
The system pre-establishes a correspondence relationship between external images and operation input objects. When an external image is changed, the system proactively identifies and erases the old operation input object that is no longer relevant, preventing the accumulation of unrelated objects and eliminating the need for users to manually erase them.
Solution Approach 2:
The system implements a feedback mechanism where changes in the external image are detected and trigger automatic updates to the operation input object. The correspondence management unit monitors the state of external images and automatically erases operation input objects that no longer correspond to the current external image, creating a closed-loop system that maintains synchronization.
2Ease of operation
If manual erasing of operation input objects is required, then drawing flexibility is maintained, but user operations become complex and time-consuming
Solution Approach 1:
The system performs self-service by automatically managing the lifecycle of operation input objects. The correspondence management unit autonomously erases operation input objects that no longer correspond to the current external image without requiring user intervention. This self-managing capability reduces user burden while preserving drawing flexibility during the active drawing phase.
3Loss of information
If operation input objects are preserved across external image changes, then drawing data is retained, but irrelevant objects clutter the display
Solution Approach 1:
The system pre-establishes and maintains a correspondence relationship between external images and operation input objects. Before erasing any operation input object, the system checks whether it corresponds to the current external image. This preliminary verification ensures that only relevant drawing data is preserved while irrelevant objects are automatically removed, preventing display clutter.
4Ease of operation
If automatic synchronization is implemented, then operation input objects follow external image changes, but system complexity increases
Solution Approach 1:
The correspondence management unit acts as an intermediary between the external image display unit and the operation input object management. It receives notifications of external image changes and automatically manages the erasure of corresponding operation input objects. This intermediary layer simplifies the overall system architecture by centralizing the synchronization logic in a dedicated component rather than distributing complexity across multiple subsystems.
Data Source
AI summary
A both-direction display method includes: inputting an image signal from an external device; displaying an image on a screen on the basis of a display signal; detecting an operation for the screen as an image operation; drawing an operation input object corresponding to the image operation; outputting the display signal for displaying a composite image obtained by combining an external image on the basis of the image signal and the operation input object; detecting an interlocking operation; and editing the operation input object so as to follow a change of the external image in accordance with the interlocking operation.