Video Audio Reproduction Error Display Logic
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Solution Overview
Problem
Video and audio reproduction apparatuses display unnecessary error messages even when there are no issues affecting the user's viewing experience, causing difficulties in detecting actual errors such as cable degradation, leading to user support needs.
Innovation Solution
A video and audio reproduction apparatus with a display determination unit that only shows error messages when the HDMI connection is problematic and affects the user's viewing experience, using data transmission standards like HDMI and composite or component standards to determine if the error impacts the user, and automatically switching data transmission if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If error messages are displayed for all HDMI errors, then users can detect cable degradation issues, but users have difficulties viewing time information and channel information on the front panel
Solution Approach 1:
The patent applies local quality by differentiating the display behavior based on the type of HDMI error. Critical errors (cable degradation, connection failures) trigger error messages, while non-critical errors (authentication failures, DDC communication errors) do not. This selective approach ensures that error messages are displayed only where necessary, maintaining front panel visibility for important information while still detecting critical issues.
2Ease of operation
If error messages are not displayed for HDMI errors, then users can view front panel information without obstruction, but users have difficulties detecting actual errors like cable degradation
Solution Approach 1:
The patent implements feedback by continuously monitoring HDMI connection status and providing selective error messages based on the nature of the error. The system gives feedback to the user only when the error actually impacts video/audio output, allowing users to view front panel information normally during non-critical errors while still being notified of genuine problems that require attention.
3Loss of information
If error messages are displayed for all connection errors, then users can be informed of all issues, but users always need to receive support from manufacturer
Solution Approach 1:
The patent applies local quality by providing differentiated error information based on the specific error type. Instead of displaying all possible errors uniformly, the system selectively displays error messages only for critical issues that require user intervention or manufacturer support. This approach maintains information completeness for important errors while reducing unnecessary support requests by filtering out non-critical errors.
Data Source
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AI summary
The DVD player (10) includes: a reproducing unit (11) reproducing audio data and video data; a first transmission unit (12) converting, into first data in accordance with a first standard, the audio data and video data reproduced by the reproducing unit, and transmitting the first data to the television (100); a second transmission unit (13) converting, into second data in accordance with a second standard, the audio data and video data reproduced by the reproducing unit, and transmitting the second data to the television (100); a display determination unit (16) determining whether or not to display an error message regarding an error occurring in the first transmission unit (12) based on whether or not the video is displayed using the first data; and a display control unit (17) causing the message display unit to display the error message according to a result of the determination by the display determination unit.