ATSC 3.0 Receiver Compliance Testing via Self-Generated Commands
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Solution Overview
Problem
The challenge is to ensure that receivers properly render ATSC 3.0 content according to the standard, preventing rogue devices from redistributing it and depriving intended beneficiaries of revenue, while allowing for flexible incorporation of technological advances without requiring a complete overhaul of technical standards.
Innovation Solution
A digital television system with a receiver having a processor programmed to execute a test application that self-generates commands and monitors feedback, using HTML Entry pages Location Description (HELD) signaling for compliance testing, including channel change commands, WebSocket Server connections, and HTTP interfaces to verify proper execution of APIs and content rendering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a test application is executed to verify compliance with ATSC 3.0 standard, then rendering accuracy is improved, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by executing compliance tests during the device certification phase before market deployment. The test application verifies rendering capabilities and standard compliance in advance, ensuring that only compliant devices are certified. This prevents the need for complex runtime verification mechanisms in production devices.
Solution Approach 2:
The test application performs self-verification by automatically executing test cases and evaluating device responses against ATSC 3.0 requirements. The system self-assesses compliance without requiring external manual testing, streamlining the certification process while maintaining high rendering accuracy verification.
2Reliability
If comprehensive testing of receiver compliance is implemented, then reliability is improved, but loss of time increases
Solution Approach 1:
The patent applies partial action by implementing a focused set of essential compliance tests that cover critical ATSC 3.0 rendering requirements. Rather than exhaustive testing of all possible functions, the system targets key compliance areas such as content rendering, API execution, and standard adherence, achieving sufficient reliability without excessive time investment.
Solution Approach 2:
The compliance testing process is segmented into distinct test cases and modules that can be executed independently. The test application divides compliance verification into separate functional areas (rendering, API calls, standard adherence), allowing parallel execution and reducing total testing time while maintaining comprehensive coverage.
3Adaptability or versatility
If flexible incorporation of technological advances is allowed, then adaptability is improved, but manufacturing precision worsens
Solution Approach 1:
The patent implements dynamics by designing the compliance testing system to be adaptable and updatable. The test application can incorporate new test cases and evaluation criteria as ATSC 3.0 standards evolve, allowing the system to dynamically adjust to technological advances while maintaining consistent compliance verification through structured testing protocols.
Data Source
AI summary
Techniques are described for expanding and/or improving the Advanced Television Systems Committee (ATSC) 3.0 television protocol in robustly delivering the next generation broadcast television services. Test code is embedded in ATSC 3.0 content to determine whether a receiver can render the content. The results are reported back to the broadcaster, which can alter content or perform other modifications based on aggregated rendering statistics.