Streaming Display Output Synchronization for Lower Decoding Latency
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Solution Overview
Problem
Existing display devices experience delays in outputting streaming content due to decoding and processing times, particularly in cloud gaming services, leading to slower game response speeds.
Innovation Solution
The display device adjusts the output timing of the display sync signal based on decoding status information, decodes frames in units of blocks, and optimizes image processing to minimize latency by delaying sync signals and frames accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the display device uses traditional decoding and output methods, then the system is simple to operate, but the output latency is high and game response speed is slow
Solution Approach 1:
The patent implements dynamic adjustment of sync signal output timing based on real-time decoding status. The processor monitors decoding progress and dynamically delays the sync signal until a frame is fully decoded, transforming the static timing system into a dynamic one that adapts to decoding speed variations, thereby reducing output latency without requiring complex manual configuration
Solution Approach 2:
The system establishes a feedback loop where the processor continuously monitors decoding status information and uses this feedback to adjust the timing of sync signal output. This closed-loop control ensures that frames are output only when ready, minimizing latency while maintaining system simplicity through automated control
2Speed
If the display device outputs frames as soon as they are decoded, then the response speed is fast, but frame synchronization and display stability deteriorate
Solution Approach 1:
The processor performs preliminary checking of decoding completion status before triggering frame output. By verifying that the frame is fully decoded and ready in advance, the system ensures that frames are output at the optimal moment, achieving fast response while maintaining synchronization stability through proactive readiness verification
Solution Approach 2:
The patent replaces traditional mechanical sync signal generation with a software-based timing control mechanism. The processor uses timestamp information and decoding status to programmatically control sync signal timing, substituting rigid mechanical synchronization with flexible software-based timing that adapts to decoding variations while maintaining stability
3Productivity
If the display device increases processing power to reduce latency, then the output speed improves, but device complexity and cost increase
Solution Approach 1:
The system implements self-service processing where the processor autonomously manages decoding coordination and sync signal timing without requiring additional dedicated hardware components. The existing processor leverages its own capabilities to monitor decoding status and control output timing, achieving enhanced productivity while avoiding increased device complexity through resourceful use of existing components
Data Source
AI summary
A display device is disclosed. The display device may comprise a communication interface, a display, a memory, and one or more processors which, when encoded content is streamed from an external server via the communication interface, decode the encoded content using a decoder, store the decoded content in the memory, read the decoded content from the memory on the basis of an output sync signal of the display, and output the decoded content through the display. The one or more processors may adjust the output timing of the output sync signal on the basis of decoding status information from the decoder.