Video Multiplexer for Low-Power Video Output in Limited Resource Systems
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Solution Overview
Problem
Limited resource information handling systems face challenges in enabling video interfaces efficiently, as they often require significant power and resource allocation, making it difficult to output video signals during reduced operating states without consuming excessive power.
Innovation Solution
A processing module with a Mini-card enabled interface is used to output video signals to a host processing system, allowing video transmission even during reduced power states by utilizing a video output channel within the Mini-card enabled interface and a video multiplexer to detect and upscale/downscale video signals for display, thereby reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a video interface is enabled in a limited resource information handling system, then video output capability is improved, but power consumption increases significantly
Solution Approach 1:
The system segments the video output function by separating the video processing responsibilities between the host system and a remote processing module. The remote module handles video processing independently, allowing the host to maintain video capability without fully powering all system components, thus reducing overall power consumption while preserving video output functionality.
Solution Approach 2:
A remote processing module is introduced as an intermediary component that enables video output capability. This module acts as a mediator between the host system and the video display, allowing video signals to be processed and transmitted without requiring the host to allocate full system resources or power, thereby resolving the contradiction between video capability and power consumption.
2Loss of energy
If video signals are output during reduced operating states, then energy efficiency is improved, but system stability may be compromised
Solution Approach 1:
The system implements partial action by enabling video output functionality only when and where needed, rather than maintaining full system operation. The remote processing module can be activated selectively to handle video processing tasks during reduced operating states, providing video capability only when required while maintaining overall system stability and avoiding unnecessary power consumption during normal operation.
Data Source
AI summary
An information handling system includes a host processing system and a remote processing system. The host processing system includes a display, a host processor, and a video multiplexer that receives a video signal from the host processor and outputs the video signal to the display. The remote processing module is coupled to the host processing system and includes a remote processor configured to output a second video signal, and an interface between the host processing system and the remote processing system. The interface includes a video output channel configured to provide the second video signal to the video multiplexer. The video multiplexer is further configured to receive the second video signal and to output the second video signal to the display during a reduced operating state of the host processing system.