Multi-Device Display Control Through Cursor-Based Input Routing
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Solution Overview
Problem
Traditional methods of sharing an input device among multiple electronic devices result in significant switching delays and poor data security due to the need for USB port switching and software KVM switches.
Innovation Solution
A display device with multimedia interfaces and a controller that receives picture data from multiple electronic devices and determines input device control based on mouse position, enabling seamless sharing and secure data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional external KVM switch is used to share an input device among multiple electronic devices, then the input device can be shared, but significant switching delay occurs due to USB port switching and re-detection
Solution Approach 1:
The system segments the display device's screen into multiple independent display regions, each corresponding to a different electronic device. Each display region can independently display content from its associated device, allowing the input device to control different devices by simply moving the cursor to different regions without requiring physical port switching or system-level re-detection.
Solution Approach 2:
The display device acts as an intermediary that receives input signals and routes them to the appropriate electronic device based on cursor position. The controller detects which display region the cursor is in and automatically directs input commands to the corresponding device, eliminating the need for manual port switching and reducing detection delays.
2Loss of time
If a software KVM switch is used to reduce switching delay, then switching speed improves, but data security deteriorates
Solution Approach 1:
The display is divided into separate display regions for different devices, creating visual and functional separation. This segmentation allows the system to maintain secure, isolated communication channels with each device while providing fast switching through simple cursor-based region detection, avoiding the security vulnerabilities of traditional software KVM solutions.
Solution Approach 2:
The system replaces the software-based switching mechanism with a spatial positioning mechanism. Instead of using software to route inputs (which creates security vulnerabilities), the system uses the physical cursor position on the display to determine device routing, providing both fast switching and enhanced security through a more direct control method.
3Adaptability or versatility
If multiple electronic devices connect to a single display through USB port switching, then device connectivity is achieved, but switching complexity and detection time increase
Solution Approach 1:
The display device creates separate display regions for each connected electronic device, allowing simultaneous visualization of multiple devices. The controller monitors cursor position within these segmented regions and automatically routes input commands to the appropriate device, eliminating the need for manual port switching and reducing system complexity.
Solution Approach 2:
The display device serves multiple functions simultaneously: it displays content from multiple electronic devices, detects cursor position across different regions, and routes input commands to the appropriate target device. This multi-functionality is achieved through a unified system that manages multiple connections without requiring separate switching mechanisms for each device.
Data Source
AI summary
A display device, a display system, and a display and control method are provided. The display device includes a display module, a first multimedia interface, a second multimedia interface, and a controller. The controller receives first picture data of a first picture of a first electronic device via the first multimedia interface, and receives second picture data of a second picture of a second electronic device via the second multimedia interface. The controller determines a content of a display picture displayed by the display module according to the first picture data and the second picture data, and the controller determines whether an input device is used to control the first electronic device or the second electronic device according to a mouse position in the display picture.