Video Controller Power Management for Paused Signals
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Solution Overview
Problem
Video display devices consume significant power regardless of usage, and prolonged static images can lead to component degradation, such as 'burn-in' in older technologies, necessitating a solution to reduce power consumption during paused states.
Innovation Solution
A video controller determines if an external video source has entered a paused state and reduces power consumption of video display device components if the paused state exceeds a threshold time, using methods like calculating representative values or detecting in-band signals to identify paused conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the video display device operates in full power mode to ensure ready availability and responsiveness, then the device can immediately display any incoming video signal, but power consumption increases and component degradation accelerates
Solution Approach 1:
The patent implements dynamic power management by continuously monitoring video signal characteristics and adjusting power consumption levels in real-time. The system transitions between full power mode (when video is actively changing) and reduced power mode (when video is static or paused), optimizing the balance between responsiveness and energy efficiency based on actual operational conditions
Solution Approach 2:
The video display device autonomously determines its own power consumption level by analyzing the video signal itself. The system self-regulates by detecting whether the video content is static or dynamic and automatically adjusting power settings without requiring external control signals, enabling the device to serve its own power management needs
2Speed
If the video display device maintains full power to ensure immediate responsiveness to user input, then the device can quickly resume playback or respond to commands, but component degradation from static images increases
Solution Approach 1:
The system dynamically adjusts power consumption based on the detected state of the video signal. When a paused or static state is detected, the system reduces power to protective levels while maintaining the ability to quickly resume full power operation when video content changes or user input is received, thus extending component life without sacrificing responsiveness
Solution Approach 2:
The patent employs feedback mechanisms where the system continuously monitors the video signal for changes and uses this information to adjust power consumption. When video content changes (indicating playback resumption or new input), the system receives feedback and immediately restores full power, ensuring both component protection and rapid responsiveness to user needs
3Use of energy by moving object
If the device uses power-down features to save energy during idle periods, then power consumption decreases, but the device cannot respond to paused video signals from external sources
Solution Approach 1:
The video display device performs self-service by autonomously analyzing the video signal to determine whether it is in a paused or static state. This self-detection capability allows the system to intelligently manage power consumption without requiring external signals or user intervention, adapting power levels based on the actual content being displayed
Solution Approach 2:
The system uses feedback from video signal analysis to control power consumption. By continuously monitoring video frame changes and detecting paused states through signal characteristics, the system receives feedback that triggers appropriate power management actions, enabling both energy savings and proper response to paused video content
Data Source
AI summary
One or more components of a video display device such as a television set can be powered down in response to a determination that a video input source has been paused. The video signal provided by the video input source can be analyzed to determine whether the video source is paused. When the video input source is no longer paused, the powered down components can be restored to fill power operation.