Display Signal Routing for Independent External Video Output
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Displays with multiple input ports cannot independently select and output a video/audio input signal different from the local input signal to another display, leading to interruptions when the local signal is interrupted.
Innovation Solution
A method and display system that allows independent selection of an output signal from multiple input signals based on user commands or default rules, involving signal processing circuits and multiplexers to determine and output the selected signal to an external device, even when the local signal is interrupted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display only selects input signals for local display, then the local display function is simple and reliable, but the display cannot independently output different input signals to external devices
Solution Approach 1:
The patent divides the signal processing function into two independent selection mechanisms: one for local display signal selection and another for external device output signal selection. This segmentation allows each function to operate independently without interfering with the other, resolving the contradiction between enhanced versatility and maintained simplicity.
Solution Approach 2:
The display device is designed to perform multiple functions through a unified signal processing architecture that can handle both local display and external device output requirements. The same input signals are processed to serve dual purposes: local visualization and external device transmission, achieving multi-functionality without proportionally increasing complexity.
2Reliability
If the display waits for local signal interruption to switch outputs, then the local display function is maintained, but the external device receives interrupted or delayed signals
Solution Approach 1:
The patent implements preliminary action by enabling the display to pre-configure and maintain separate signal selection paths for local display and external device output. The system can proactively switch output signals to external devices without waiting for local signal interruptions, ensuring continuous and reliable signal transmission while maintaining local display functionality through independent signal routing.
3Extent of automation
If the display uses manual signal selection, then the user has control over signal routing, but the switching process is time-consuming and complex
Solution Approach 1:
The patent implements self-service through automatic signal selection mechanisms that monitor input signal conditions and autonomously determine optimal routing decisions. The system can automatically switch between different input signals for local display and external device output based on predefined criteria or detected signal availability, eliminating the need for manual user intervention while maintaining intelligent control through automated decision-making algorithms.
Data Source
AI summary
A method, performed by a display, for selecting from multiple input signals to output an output signal to another display comprises: receiving the multiple input signals with multiple input ports of the display respectively, and receiving a user command designating a first input signal of the multiple input signals as a selected signal to be or to be converted into the output signal; determining whether the display is displaying frame(s) according to the selected signal, and if so, executing output steps. The output steps include: when a bandwidth of an output port of the display is enough, setting a signal outputting circuit of the display according to a format of the selected signal and a specification of the output port coupled to the external device; and using the signal outputting circuit to output the output signal to the output port according to the selected signal.