Programmable Multimedia Format Board for Automated Device Testing
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Solution Overview
Problem
Current automated test systems for end-user devices such as set-top boxes and game consoles require manual reconfiguration of connections between units under test (UUT) and multimedia-format boards (MFB), complicating the testing process due to varying connectivity and make/model-specific requirements.
Innovation Solution
A programmable multimedia format board (PMFB) with downloadable logic that automatically detects the UUT's make and model, allowing for automatic configuration and testing without manual cabling changes, and a pluggable interface module that adapts signals and outputs for parallel processing and analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual reconfiguration of connections is performed for each UUT, then connectivity can be established, but testing time increases and productivity decreases
Solution Approach 1:
The system performs preliminary actions by pre-configuring the test system with multiple UUTs connected to the MFB before actual testing begins. The interface module is pre-positioned and pre-connected to the MFB, so that when testing starts, the connections are already established and no manual reconfiguration is needed during the test sequence.
Solution Approach 2:
The test system performs self-service through automated detection and configuration. The interface module automatically detects the make and model of each UUT and self-configures the appropriate connections and settings without requiring manual intervention. The system manages its own setup and reconfiguration automatically.
2Adaptability or versatility
If multiple UUTs with varying connectivity requirements are tested using a single MFB, then device versatility improves, but system complexity increases
Solution Approach 1:
The MFB is designed with universal multi-functionality to handle multiple media formats and connectivity types. The interface module provides a universal interface that can accommodate different UUT makes and models through standardized connections. A single MFB can serve multiple functions by supporting various media formats (component, composite, S-video, HDMI, analog video, audio formats) without requiring separate dedicated boards for each format.
Solution Approach 2:
The system employs dynamic adaptability where the interface module can dynamically adjust its configuration based on the detected UUT type. The programmable MFB can dynamically load different media format conversion logic depending on what UUT is connected, allowing the system to adapt to varying connectivity requirements without manual reconfiguration.
3Measurement precision
If manual detection of UUT make and model is performed, then identification accuracy is achieved, but testing time increases
Solution Approach 1:
The interface module performs self-service by automatically detecting the UUT's make and model without requiring manual intervention. The system autonomously identifies the device characteristics and configures appropriate test parameters automatically, eliminating the time-consuming manual detection process while maintaining accurate identification.
Solution Approach 2:
The system uses feedback mechanisms where the interface module communicates with the UUT to detect its make and model information. The UUT provides feedback about its characteristics, and the interface module uses this information to automatically configure the test settings, creating a rapid feedback loop that speeds up the detection process while maintaining accuracy.
Data Source
AI summary
A test system, for example for set top boxes or game consoles, includes logic to reformat media signals output by a device under test, logic to receive the reformatted media signals and to analyze them for errors, and a pluggable interface coupling and device under test to the logic to reformat the media signals.