Broadcast Supplementary Data Processing Power Management
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Solution Overview
Problem
Managing power consumption in mobile devices is challenging, especially when receiving broadcast data, as existing technologies do not efficiently conserve power when the user cannot view supplementary data on the display.
Innovation Solution
A system and method that process broadcast signals with supplementary data channels, rendering them on a display and ceasing processing when the display is no longer viewable by the user, such as through deactivating the backlight, to reduce power consumption by removing power from associated circuitry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the device continues to process supplementary broadcast data, then data availability is maintained, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the processing of supplementary data based on real-time display state. When the display is active, supplementary data processing is enabled; when the display is inactive, processing is suspended. This dynamic adaptation resolves the contradiction by making data availability conditional on actual user need, thereby reducing power consumption without completely sacrificing reliability.
Solution Approach 2:
The system monitors its own display state and automatically controls the processing of supplementary data accordingly. The display controller detects display activity and self-regulates the data processing pipeline, enabling the system to serve itself by eliminating unnecessary processing when the display is not viewable, thus reducing power consumption while maintaining data availability when needed.
2Loss of information
If the device processes supplementary broadcast data, then information completeness is improved, but battery life decreases
Solution Approach 1:
The system applies partial action by processing only the portion of supplementary data that is actually needed at any given time. Instead of continuously processing all supplementary data, the system selectively processes data only when the display is active and data is likely to be viewed. This partial processing approach maintains sufficient information completeness for user needs while significantly extending battery life by eliminating wasteful processing.
3Use of energy by moving object
If the display backlight is deactivated to save power, then power consumption is reduced, but user visibility of supplementary data is lost
Solution Approach 1:
The system implements periodic monitoring of display state to determine when the backlight is active or inactive. Based on this periodic assessment, the system adjusts supplementary data processing accordingly. This periodic action ensures that power is consumed for data processing only during periods when the display is actually visible to the user, resolving the contradiction between power savings and data visibility.
Data Source
AI summary
Controlling supplementary data channels using display state information involves processing, at a user device, a first broadcast signal having a content channel and a second signal having a supplementary data channel. The supplementary data channel is related to the content channel. The broadcast channel and supplementary channel are rendered to a user via the user device. The supplementary channel is at least partially rendered on a display of the user device. An event is determined that causes the display to be no longer viewable by the user. In response to determining the event, processing and rendering the supplementary data channel is ceased. The action of ceasing to process the supplementary data channel results in lowering power consumption of the user device.