Broadcast Data Carousel Filtering for Disturbance-Tolerant Download
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Solution Overview
Problem
Existing broadcast data download systems face inefficiencies due to signal disturbances causing repeated loops of data carousels, leading to delays and increased CPU and memory usage, and inability to adjust bitrate without missing content.
Innovation Solution
Implementing multiple content filters that selectively download data chunks or sections, with synchronization and bitrate control to manage data retrieval, allowing for consistent addressing and efficient data collection even with signal disturbances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single demultiplexer filter is used to download broadcast data from a carousel, then the system structure is simple, but signal disturbances cause repeated loops and significant delays in obtaining all required data
Solution Approach 1:
The patent divides the data download task into multiple parallel operations by implementing multiple content filters (first content filter, second content filter, etc.) that simultaneously download different data chunks from the carousel. This segmentation allows the system to retrieve multiple data portions in parallel, significantly reducing the total time required to obtain all required data compared to a single sequential filter approach.
2Use of energy by moving object
If the filter is disabled to decrease download bitrate, then energy consumption is reduced, but content is missed and can only be retrieved at the next carousel loop
Solution Approach 1:
The patent implements a feedback mechanism where the system monitors download progress and carousel loop status. When the filter is disabled to save energy, the feedback system tracks which content was missed and automatically triggers a re-download of that specific content in subsequent carousel loops. This ensures no information is permanently lost while still allowing energy-saving mode operation.
3Productivity
If disturbances occur during the first loop of the carousel, then data collection is interrupted, but the same data must be collected again during subsequent attempts
Solution Approach 1:
The patent implements preliminary action by having multiple content filters ready to download different data chunks in parallel from the outset. If disturbances occur during the first loop, the system has already downloaded other data portions that would otherwise require re-collection. This preliminary parallel download approach reduces the need to re-download the same data in subsequent attempts, lowering CPU engagement and memory transfer requirements.
Data Source
Figure 1A~1B
Figure 2
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AI summary
The invention relates to a system and method for improved, selective download of broadcast data. In particular the present invention relates to downloading of broadcast data effectively when disturbances occur during reception of an input signal comprising a data carousel. The invention introduces multiplication of content filters that are configured to download only a part of the data. An important feature is recognition when to reset content filters in order to resolve an issue. For the purposes of this invention, there is defined a linear address space. The important properties of this address space allow for consistent addressing without gaps and every address is greater by a single position with respect to the previous one. The address space starts with one address and ends with another one. Such chunk address space may be considered as predictable, because a synchronization can be caught by reading an address of currently broadcast section.