Video Source Display Format Selection via Capability Testing
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Solution Overview
Problem
Display devices often provide inaccurate information about their capabilities via communication protocols, leading to sub-optimal display format selection by video sources, which can be further compromised by ambient interference affecting data rates and network connectivity.
Innovation Solution
Implement a method to read and test display device capabilities, including high dynamic range and high resolution formats, and estimate noise levels and network throughput to select display formats that maximize device capabilities and are supported in the operating environment, involving a negotiation phase, configuration testing, and video delivery phase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If display devices provide capability information via communication protocols, then information exchange between video source and display is enabled, but the information accuracy deteriorates leading to sub-optimal display format selection
Solution Approach 1:
The system performs preliminary capability testing by actually attempting to display test video in various formats rather than relying solely on pre-exchanged capability information. This preliminary action reveals the true capabilities of the display device, including support for high dynamic range and high definition formats, enabling more reliable format selection.
Solution Approach 2:
The system implements feedback by monitoring whether the display device successfully displays test video in attempted formats. Based on this feedback, the video source adjusts its understanding of display capabilities and selects appropriate display formats, creating a closed-loop system that continuously refines format selection based on actual performance.
2Device complexity
If video source selects display format based on reported capabilities, then configuration process is simplified, but ambient interference causes format selection to be unsupported
Solution Approach 1:
The system performs preliminary testing of display formats in a controlled manner before final selection. By testing formats sequentially and monitoring success, the system determines which formats are truly supported without requiring complex environmental analysis, maintaining configuration simplicity while improving reliability.
Solution Approach 2:
The system tests a range of display formats including those that may exceed reported capabilities. By attempting to display in various formats and observing actual success rather than relying on complete capability declarations, the system identifies the practical upper limits of display support in the current environment.
3Manufacturing precision
If high data rate display formats are selected, then display quality is improved, but ambient interference increases causing network connection failures
Solution Approach 1:
The system tests display formats at progressively higher quality levels including those that may push environmental limits. By attempting to display in high data rate formats and monitoring for interference-related failures, the system identifies the maximum quality level that can be sustained in the current ambient conditions.
Solution Approach 2:
The system dynamically adjusts display format selection based on observed performance and environmental conditions. Rather than selecting a fixed high-quality format, the system adapts format choices based on actual display success and network connection stability, optimizing quality while avoiding interference-induced failures.
Data Source
AI summary
Techniques are disclosed to select display settings for a display device. Device capabilities may be read from a display device and a determination made whether the device capabilities support other display formats than are read from the display, for example, a high dynamic range (HDR) format or a high resolution format. When the device capabilities do not include an format supported by a video source, video may be driven from the video source to the display device in the format and, if confirmation is received that the display device displays the driven video, settings may be stored for the display device identifying the format as a one supported by the display device. Additionally, interconnect may be tested by estimating noise levels generated by the interconnect to a network connection and/or by estimating network throughput both when video is driven over the interconnect and when it is not. Display formats may be selected for the device based on a maximum data rate of a network connection that can be maintained while the interconnect carries video.