Automatic Test Method for Electronic Device Display and Audio Verification
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Solution Overview
Problem
Manual testing of electronic devices is costly and prone to misjudgment, especially in assessing stereo audio effects, which can be affected by noise and other factors, leading to false judgments.
Innovation Solution
An automatic test method that generates sample videos and audio signals, displays them on the device under test, captures the output, and analyzes the results using a processor to determine if the display and audio functions are functional, providing error or pass messages based on the analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual testing is used to check device functions, then human judgment can assess audio and video quality, but it leads to rising human resource costs and increased possibility of misjudgment
Solution Approach 1:
The patent replaces manual mechanical testing with an automated testing system that uses a processor to generate test signals, control the device under test, and analyze results automatically. This substitution eliminates human resource requirements while maintaining or improving testing accuracy through consistent, repeatable automated procedures.
Solution Approach 2:
The patent creates standardized test patterns (video frames and audio signals) that can be repeatedly copied and used for testing multiple devices. These test patterns serve as reference copies that enable consistent evaluation across different devices without requiring human operators to repeatedly perform subjective assessments.
2Measurement precision
If manual testing is used to evaluate stereo audio effects, then human ears can perceive audio quality, but it is hard to judge accurately and affected by noise leading to false judgments
Solution Approach 1:
The patent replaces human auditory perception with electronic audio signal analysis. The processor generates precise test audio signals and automatically analyzes the captured output, eliminating susceptibility to environmental noise and human subjective judgment errors. The system uses objective measurements rather than human perception to evaluate audio quality.
Solution Approach 2:
The patent introduces an intermediary audio processing system that includes signal generation, capture, and analysis components. This intermediary system acts as a mediator between the audio device under test and the evaluation process, filtering out environmental noise and providing clean, objective measurements of audio output.
3Productivity
If automated testing is implemented, then human resource costs are reduced and false judgments are minimized, but requires complex testing system setup
Solution Approach 1:
The patent creates a universal testing system that can evaluate multiple device functions (display, audio, camera) using a single integrated platform. The processor-based system performs multiple testing operations sequentially, making the complex system versatile enough to handle various test types without requiring separate dedicated equipment for each function.
Solution Approach 2:
The patent combines multiple testing functions into a single integrated automated system. The processor merges signal generation, device control, data capture, and result analysis into one unified testing operation, reducing the need for separate testing equipment and operators for each function while improving overall testing efficiency.
Data Source
AI summary
An automatic test method for testing functions of a device under test is disclosed. The automatic test method includes the following operations. A sample video is generated based on first sample photos and at least one second sample photo by a processor. The sample video is displayed by the device under test and test photos are generated based on the content of the displayed sample video captured by a camera. The first sample photos are compared with the test photos to generate a display compared result. A display error message or a display pass message is generated based on the display compared result by the processor, configured to indicate that whether a display function of the device under test is dysfunctional.