Content Verification via Material ID Prefix Matching
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Solution Overview
Problem
Content distribution systems, such as those used in satellite television, often misroute content, leading to the wrong content file being provided to users due to the complexity of processes involved.
Innovation Solution
A method and system that verify the content being downloaded by selecting a content prefix and material identification, comparing these identifiers at both the content management system and the device, and preventing transmission if they do not match, ensuring that only the requested content is downloaded.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If content is transmitted through multiple computers and routers in a content distribution system, then content delivery capability is improved, but content routing accuracy deteriorates leading to misrouting
Solution Approach 1:
The patent applies preliminary action by pre-associating material identification with content type prefixes before transmission. The content management system预先 assigns a content type prefix to each content based on its material identification, so that when content is transmitted through multiple routers and computers, the prefix is already in place to guide accurate routing without requiring complex real-time verification at each node.
Solution Approach 2:
The patent implements feedback by having the receiving device verify the content type prefix against the expected content type after reception. If the prefix matches, the content is accepted; if not, the transmission is rejected and can be retransmitted with correct routing. This feedback mechanism ensures routing accuracy while maintaining delivery capability through multiple nodes.
2Measurement precision
If content verification is performed by comparing material identification and content type prefix, then content accuracy is improved, but system complexity increases
Solution Approach 1:
The patent extracts the verification function from the complex content distribution process by isolating it into a simple prefix comparison operation. Instead of verifying entire content files or complex metadata, the system only extracts and compares the content type prefix, which is a small, fixed-length string. This dramatically simplifies the verification system while maintaining high accuracy.
Solution Approach 2:
The patent applies local quality by making the verification process localized to only the essential identifying feature (the content type prefix) rather than requiring global verification of all content attributes. Each content item has its critical verification attribute (the prefix) locally attached, allowing quick comparison without examining the entire content structure.
Data Source
AI summary
A system and method for distributing requested content includes a content management system 12 and a device 14 such as a set top box that selects a selection corresponding to content in the content management system 12 and transmits a first material identification to the content management system. The content management system 12 transmits the content to the device with a second material identification associated therewith. The device 14 receives the content and the second material identification and compares the first material identification to the second material identification. When the second material identification corresponds to the content, the device continues downloading the content. When the second material identification does not correspond to the content, downloading of the file is discontinued. A content prefix may also be used alone or in combination with the material identification. The content is prevented from being transmitted if the content prefix does not correspond to the content type.