UHDA-SRM Video Frame Blanking Interval Embedding
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Solution Overview
Problem
Current methods for enabling Ultra-High Definition Alliance Specified Reference Mode (UHDA-SRM) in video content transmission over HDMI are plagued by interoperability issues, undefined signaling conditions, and backward compatibility problems, particularly due to the reliance on AVI InfoFrames and remote control buttons, which fail to consistently ensure that displays enter the intended mode for cinema content.
Innovation Solution
A communication protocol is introduced that allows video sources to detect and embed display mode specifications within the blanking intervals of video frames, ensuring that video sinks, such as TVs, can accurately apply Director's Mode processing by receiving and interpreting UHDA-specific SEI messages or detecting cinema content through frame rate analysis, thus enabling consistent and reliable UHDA-SRM operation across various devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AVI InfoFrames and remote control buttons are used to enable UHDA-SRM, then the display mode can be changed, but interoperability issues and reliability problems occur
Solution Approach 1:
The video source device automatically detects cinema content and embeds UHDA-SRM specifications in blanking intervals without requiring user intervention through remote control buttons, making the system self-activating and reliable
Solution Approach 2:
The blanking interval serves as an intermediary carrier to transmit UHDA-SRM specification data from the video source to the video sink, enabling reliable mode activation without relying on AVI InfoFrames or remote control mechanisms
2Measurement precision
If display mode specifications are embedded in blanking intervals, then frame-by-frame accuracy is achieved, but device complexity increases
Solution Approach 1:
The patent uses existing blanking interval structures in video frames to carry UHDA-SRM specification data, copying the format of conventional video signaling while adding new functionality without requiring fundamentally new transmission infrastructure
Solution Approach 2:
The blanking interval is made multi-functional by simultaneously serving its traditional synchronization purpose and carrying UHDA-SRM specification data, eliminating the need for separate signaling channels and reducing overall system complexity
3Stability of the object's composition
If UHDA-SRM specifications are transmitted through HDMI, then consistent mode presentation is achieved, but backward compatibility issues arise
Solution Approach 1:
The patent applies UHDA-SRM specifications locally to individual video frames by embedding them in each frame's blanking interval, allowing precise control of display mode on a frame-by-frame basis while maintaining compatibility with standard HDMI transmission protocols
Solution Approach 2:
The video source device pre-embeds UHDA-SRM specifications in the blanking intervals before transmission, so that the video sink receives ready-to-apply mode information without requiring real-time negotiation or additional processing steps
Data Source
AI summary
Techniques for enabling the display of video content is a specified display mode, such as the Ultra-High Definition Alliance Specified Reference Mode (UHDA-SRM). A video source device receives video content as a bitstream in one format that includes a specification of a display mode for the video content. The video source also receives information from a display device or other video sink on the display modes that it supports. If the display device supports the specified display mode, the video provides the video content to the display in a second format, such as HDMI, as a series of frames the specification of the display mode embedded in a blanking interval in each of the frames.