Projector Delay Calculator for Synchronized Multi-Unit Display
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Solution Overview
Problem
In projector systems, unsynchronized audio and video can occur due to undetermined image processing delays, leading to poor image quality, especially in multiple-projector applications where manual calibration is time-consuming and inconvenient.
Innovation Solution
A projector system with an image processor and delay calculator that calculates transmission delays by using test image signals, allowing for automatic adjustment of image output timing to synchronize images across projectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual adjustment is used to synchronize images across projectors, then image synchronization can be achieved, but calibration time increases and user convenience deteriorates
Solution Approach 1:
The system performs automatic delay detection and adjustment without requiring manual user intervention. The delay detection unit automatically measures transmission delays by comparing test image signals, and the system self-adjusts the image processing delays to synchronize multiple projectors, eliminating time-consuming manual calibration while maintaining reliable image synchronization
2Manufacturing precision
If image processing operations are performed on image signals, then image quality can be improved, but transmission delay becomes undetermined and increases
Solution Approach 1:
The delay detection unit continuously monitors and measures the actual transmission delay of processed image signals by comparing input test signals with output signals. This feedback mechanism allows the system to accurately determine the delay introduced by image processing operations, enabling precise synchronization compensation while maintaining high image quality through necessary processing operations
Data Source
AI summary
A projector, a projecting system and a transmission delay detection method thereof are provided. The projector includes an image processor and a delay calculator. The image processor, in a test mode, receives a first test image signal through an input end during a first time period, generates a first processed image signal through an output end, receives a second test image signal through the input end during a second time period, and generates a second processed image signal through the output end. The delay calculator detects a first time point at which the input end of the image processor receiving the first test image signal and a second time point at which a signal on the output end of the signal processor to translate from the first processed image signal to the second processed signal, and generates a first transmission delay according to the first and second time points.