Set-Top Box Content Rendering via Switched Digital Video Offloading
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Solution Overview
Problem
Conventional set-top-boxes (STBs) often lack the processing capabilities to support all content types in web pages, leading to latency issues and an inferior user experience when accessing the Internet, as they may not be able to render certain content formats, such as unsupported plug-ins, efficiently.
Innovation Solution
A system and method utilizing Switched Digital Video (SDV) or dedicated IPTV channels to offload content processing from STBs to servers, which convert unsupported content into formats that can be rendered by the STBs, freeing bandwidth in broadcast links by identifying and reallocating unused channels, and using servers to dynamically encode and deliver multimedia content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If content processing is performed in STB, then content can be rendered locally, but processing capabilities are insufficient and latency increases
Solution Approach 1:
A remote server is introduced as an intermediary between the web server and the STB. The server receives content requests from the STB, processes unsupported content formats, and returns rendered content to the STB. This mediator approach allows the STB to access complex web content without requiring local processing capabilities, thereby reducing latency while maintaining rendering reliability.
Solution Approach 2:
Instead of requiring the STB to process content locally, the system copies the content processing function to a remote server. The server performs the heavy lifting of content conversion and rendering, then transmits the processed content back to the STB. This copying of processing capabilities to a more powerful remote system resolves the contradiction between local rendering ability and processing power.
2Adaptability or versatility
If STB processes all content locally, then independence is maintained, but processing capabilities are insufficient for complex content types
Solution Approach 1:
The remote server acts as an intermediary that handles content format conversion. When the STB requests content, the server checks if the content format is supported by the STB. If not, the server converts the content into a compatible format before returning it to the STB. This approach increases the STB's adaptability to various content formats without adding processing complexity to the device itself.
Solution Approach 2:
The remote server provides universal content processing capabilities that can handle multiple content formats and types. Instead of each STB needing to support every content format, the server acts as a universal translator that adapts content to match the STB's capabilities. This multi-functionality at the server level resolves the contradiction between versatility and device complexity.
3Quantity of substance
If bandwidth is allocated to all broadcast channels, then channel availability is maintained, but unused channels waste bandwidth resources
Solution Approach 1:
The system dynamically adjusts bandwidth allocation based on actual content requests and STB capabilities. Instead of maintaining fixed bandwidth allocation for all broadcast channels, the server monitors content requests and dynamically allocates bandwidth to process and transmit only the content that STBs actually need. This dynamic approach optimizes bandwidth efficiency while maintaining channel availability for requested content.
Data Source
AI summary
A server may be used to handle at least some of processing of content that is based on web access operations initiated in a set-top box (STB), wherein one or more links between the server and the STB that are used to forward multimedia broadcasts are configured to free bandwidth for communicating at least a portion of the processed content to the STB. The bandwidth may be freed based on switched digital video (SDV) and/or dedicated IPTV channels or systems. The broadcast links may be reconfigured based on monitoring of multimedia broadcast access by the STB and/or one or more other STBs. The freed bandwidth in the multimedia broadcast links may be configured for unicast transport of processed content to a specific STB, or may be configured for multicast transport of the processed content to a plurality of STBs.