Image Engine TE Signal Response via Pre-Read Buffer
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Solution Overview
Problem
Current methods for responding to a Tearing Effect (TE) signal in display systems are inefficient, leading to delayed responses and increased bandwidth pressure, especially in scenarios with low refresh frame rates, resulting in power consumption waste and performance inefficiencies.
Innovation Solution
A method involving pre-reading and processing image data, generating a frame synchronization signal, and selectively responding to TE signals based on their validity and application requirements, allowing for flexible output configurations and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image engine reads image data from memory and processes it only after receiving a TE signal (automatic mode), then the system can respond to tearing effect signals, but the response time is too slow causing tearing effects and increasing bandwidth pressure
Solution Approach 1:
The image engine pre-reads image data from the display screen memory before the TE signal arrives and stores it in a buffer. When the TE signal is received, the pre-read data is immediately output without additional reading delay, thus preventing tearing effects while maintaining fast response time
Solution Approach 2:
A buffer is introduced as an intermediary component between the display screen memory and the output interface. The buffer temporarily stores pre-read image data, allowing the system to decouple the data reading process from the TE signal timing and achieve immediate response when the TE signal arrives
2Reliability
If the image engine responds to all TE signals in automatic mode, then complete TE signal handling is achieved, but power consumption increases and performance is wasted in low refresh rate scenarios
Solution Approach 1:
The system dynamically adjusts its response behavior based on the refresh frame rate requirements. When the refresh rate is low, the image engine selectively responds only to necessary TE signals rather than all signals, thereby reducing power consumption while maintaining adequate image update performance
Solution Approach 2:
The system changes its operational parameters based on the TE signal characteristics and application requirements. By monitoring the refresh rate and signal frequency, the image engine adjusts its response strategy to balance between complete signal handling and power consumption efficiency
3Speed
If the image engine processes image data immediately upon TE signal arrival, then real-time processing is achieved, but instantaneous bandwidth pressure on the transmission bus increases
Solution Approach 1:
Image data is pre-read from the display screen memory into a buffer before the TE signal arrives. This distributes the data transfer load over time, avoiding concentrated bandwidth pressure when the TE signal triggers immediate processing
Data Source
AI summary
An embodiment of the present invention discloses a method for quickly responding to a signal, where the method includes: generating a frame synchronization signal; pre-reading image data, and saving the image data after processing the image data; and receiving a TE signal, and outputting the processed image data according to the TE signal. An embodiment of the present invention further discloses an apparatus for quickly responding to a signal. Using the present invention may improve a rate for responding to a signal and reduce an instantaneous bandwidth pressure on a transmission line.