Multiplexed Transport Channel Optimization via Viewing Score Grouping
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Solution Overview
Problem
Existing multimedia distribution systems experience delays in channel changing due to the random or logical arrangement of program channels, leading to longer tuner acquisition times when subscribers switch between channels with different multiplexes, especially for households with disparate viewing habits.
Innovation Solution
A system and method that selectively arrange program channels into multiplexed transport channels based on viewing scores, grouping channels with higher likelihoods of being viewed together, using a head-end processor and switch arrays to optimize the channel lineup and reduce the need for tuners to switch between different multiplexed transport channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If program channels are arranged in numerical sequence or logical order in transport channels, then the channel lineup structure is simple and easy to manage, but channel change time increases when subscribers switch between channels in different multiplexes
Solution Approach 1:
The patent applies local quality by creating different transport channels with different multiplexes tailored to different subscriber groups. High-viewership channels are placed in a first multiplex while lower-viewership channels are in a second multiplex, allowing subscribers to access frequently watched channels faster without affecting overall lineup simplicity
Solution Approach 2:
The patent segments the channel lineup into multiple multiplexes based on viewership characteristics. By dividing channels into groups (first multiplex for high-viewership, second multiplex for lower-viewership), the system reduces channel change time for frequently accessed channels while maintaining manageable complexity through organized segmentation
2Adaptability or versatility
If program channels are distributed across multiple transport channels, then channel diversity and content variety are improved, but the complexity of tuner acquisition and channel switching increases
Solution Approach 1:
The patent applies preliminary action by pre-organizing channels into multiplexes based on predicted viewership patterns before subscribers need to access them. This advance organization allows tuners to acquire carrier signals more efficiently by knowing which multiplex to access first, reducing the complexity of real-time channel switching decisions
Data Source
AI summary
A content distribution system includes a distribution center, a processor, a switch, and first and second multiplexers. The distribution center receives and applies program content on program channels. The processor identifies subsets of the program channels in response to a respective score associated with the program channels. The switch couples the distribution center to the multiplexers. The switch applies program channels to respective inputs of the first and second multiplexers in response to the processor. A method for optimizing a multiplexed transport channel includes the steps of identifying a set of program channels designated for distribution via the multiplexed transport channel, arranging the set of program channels in subsets, the program channels within a subset grouped in accordance with a viewing score, multiplexing the program channels of the subsets to a respective transport channel and applying the respective transport channels to a distribution medium for delivery to the destination.