Virtual EDID Generation for Multi-Device Wireless Display Optimization
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Solution Overview
Problem
Existing wireless display technologies cannot optimize simultaneous picture output from multiple devices due to the lack of setting values in the EDID (Extended Display Identification Data) information, leading to reduced resolution and suboptimal screen display when multiple inputs are connected.
Innovation Solution
The electronic apparatus generates virtual identification information to virtualize the display for each connected device, allowing it to adjust parameters like resolution, refresh rate, and sound settings based on the wireless connection quality and number of devices, enabling optimal display of image signals from multiple external devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single EDID is used for the display apparatus, then the display can be identified by connected devices, but the display resolution and quality deteriorate when multiple devices are connected simultaneously
Solution Approach 1:
The patent segments the single EDID into multiple virtual EDIDs, each tailored for specific display scenarios. The EDID management unit generates different virtual EDID data depending on the number of connected devices, allowing each device to receive optimized display parameters. This segmentation enables both multi-device compatibility and maintained display resolution by providing device-specific configuration data.
Solution Approach 2:
The patent implements dynamic EDID generation that adapts to the number of connected devices. The EDID management unit dynamically creates virtual EDIDs with appropriate resolution and timing parameters based on whether one or multiple devices are connected. This dynamic approach allows the display apparatus to maintain optimal display quality regardless of the number of simultaneous connections.
2Productivity
If the display reduces pictures using a reducing function, then multiple inputs can be displayed simultaneously, but the display quality and resolution are compromised
Solution Approach 1:
The patent changes the display parameters (resolution, timing, scaling) by providing different virtual EDID configurations based on the number of connected devices. Instead of uniformly reducing all displays, the system adjusts parameters dynamically - when multiple devices are connected, it generates virtual EDIDs with appropriate timing and resolution settings that enable simultaneous display without quality degradation. This parameter adaptation allows full-resolution output for each device while maintaining simultaneous display capability.
3Device complexity
If the display apparatus uses fixed EDID settings, then the configuration is simple, but it cannot optimize display output for different connection scenarios
Solution Approach 1:
The patent implements self-service through automated virtual EDID generation. The EDID management unit automatically detects the number of connected devices and generates appropriate virtual EDID configurations without manual intervention. This self-service mechanism maintains operational simplicity while enabling optimization for different connection scenarios - the system autonomously adapts its behavior based on the detected device count, providing scenario-specific optimization without increasing user complexity.
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a virtual identification information generator and a display controller. The virtual identification information generator generates a virtual identification information item to virtualize the display, for each of two or more external devices wirelessly connected to the electronic apparatus by use of a wireless communication module, based on specific identification information of the display including information indicative of properties of the display. The display controller displays image signals transmitted from the external devices on a display. The display image signals are generated by the external devices based on the virtual identification information items.