Image Synchronization Device Using Light Reference Signal
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Solution Overview
Problem
Existing image sensor systems face synchronization challenges due to delays in image data output caused by structural differences and transmission path variations, leading to the use of incorrect information.
Innovation Solution
An image synchronization device that includes a light emitting source, sampling phase calibration circuit, and delay calibration circuit to synchronize the sampling phases and compensate for delays between multiple image sensors, ensuring synchronized image information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple image sensors are used to capture image information, then the quantity and coverage of image data are improved, but synchronization accuracy deteriorates due to delays caused by structural differences and transmission path variations
Solution Approach 1:
A light emitting source is introduced as an intermediary to provide a common reference signal to multiple image sensors. The sampling phase calibration circuit uses this intermediary light signal to synchronize the sampling phases of different sensors, thereby resolving the synchronization accuracy issue while maintaining the benefit of multiple sensors for increased data quantity and coverage
Solution Approach 2:
The sampling phase calibration circuit implements feedback by continuously monitoring the sampling phases of multiple image sensors and automatically adjusting them based on the light emitting timing from the reference source. This closed-loop feedback mechanism ensures synchronization accuracy is maintained despite structural differences and transmission path variations among sensors
2Measurement precision
If sampling phases of multiple image sensors are calibrated, then synchronization accuracy is improved, but device complexity increases due to additional calibration circuits and light emitting sources
Solution Approach 1:
The light emitting source serves multiple functions: it acts as a reference signal for sampling phase calibration, provides a timing reference for delay calibration, and can serve as a validation source for synchronization accuracy. This multi-functionality reduces the need for separate calibration components, thereby limiting the increase in device complexity while achieving high synchronization accuracy
Solution Approach 2:
The sampling phase calibration circuit and delay calibration circuit are merged into a unified calibration system that uses the same light emitting source. By combining these calibration functions and sharing common components, the overall device complexity is reduced compared to having separate independent calibration systems for each function
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively synchronizes image information from multiple image sensors, ensuring accurate and timely data acquisition by calibrating sampling phases and compensating for delays, thereby improving the reliability of image data.
Implementation Method 1
a light emitting source configured to emit light at intervals of a predetermined time
Implementation Method 2
An image sensor may refer to a device for converting an image seen by user's eyes into electric signals using a photoelectric device
Data Source
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AI summary
In accordance with an embodiment of the present disclosure, an image synchronization device includes a light emitting source configured to emit light at intervals of a predetermined time, a sampling phase calibration circuit configured to calibrate a sampling phase of each of the first image sensor and the second image sensor on the basis of a light emitting timing of the light emitting source and a delay calibration circuit configured to generate delay information on the basis of a result of comparison between first image information transmitted from the first image sensor and second image information transmitted from the second image sensor.