X-ray Detector Dynamic Window Time Offset Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing X-ray detecting apparatuses have a fixed image processing period, leading to increased time loss due to a predetermined window time and margins for irregular exposure, which slows down the operation speed.
Innovation Solution
An X-ray detecting apparatus with a central processing unit that determines the offset video signal using a relationship between window time and squared values, allowing for dynamic adjustment of exposure time and eliminating the need for a fixed window period, thereby reducing processing time and enhancing operation speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed window time is used for X-ray exposure, then the apparatus can handle irregular exposure margins, but the image processing period increases and operation speed decreases
Solution Approach 1:
The patent applies dynamics by making the window time variable rather than fixed. The control unit dynamically adjusts the window time based on the actual exposure conditions and subject characteristics, allowing the system to adapt to different scenarios. This resolves the contradiction by enabling the system to use shorter window times when possible (improving speed) while still handling irregular exposures when needed (maintaining reliability).
Solution Approach 2:
The patent changes the parameter of window time from a fixed value to a variable parameter that can be adjusted based on exposure conditions. By modifying this temporal parameter dynamically, the system achieves both faster operation (shorter window times) and reliable handling of irregular exposures (extended window times when necessary).
2Reliability
If a predetermined fixed window period is used, then exposure margins are accounted for, but time loss increases and processing efficiency decreases
Solution Approach 1:
The system dynamically adjusts the window time duration based on actual exposure needs rather than using a predetermined fixed period. The control unit monitors exposure conditions and adapts the window time accordingly, reducing time loss when full margins are not needed while maintaining reliability when irregular exposures occur.
Solution Approach 2:
The patent applies partial action by using only the necessary portion of the window time required for each specific exposure scenario. Instead of always using the full predetermined window period, the system adjusts to use exactly the time needed, eliminating excessive time loss while still covering necessary exposure margins.
3Device complexity
If offset video signal is determined without considering window time relationship, then processing is simpler, but accuracy of real video signal generation decreases
Solution Approach 1:
The patent applies preliminary action by pre-establishing the relationship between window time and offset video signal through calibration or measurement. This relationship is stored in advance, allowing the control unit to quickly determine accurate offset values during operation without complex real-time calculations, thus maintaining both simplicity and accuracy.
Solution Approach 2:
The system uses feedback by determining the offset video signal based on the actual window time used in each exposure. The control unit adjusts the offset signal according to the specific window time applied, ensuring accuracy for each individual case while maintaining a systematic approach that doesn't overly complicate the processing.
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
This approach reduces the image processing period, allowing for faster operation speeds by dynamically determining the exposure time and eliminating unnecessary time losses, resulting in improved efficiency and speed in X-ray detection.
Implementation Method 1
The X-ray panel may include a scintillator converting the X-ray passing through the subject into the visible ray
Implementation Method 2
a PIN diode receiving the converted visible ray and generating a charge in proportion to the amount of the visible ray
Data Source
AI summary
An X-ray detecting apparatus constructed as the present invention receives an X-ray passing through a subject during a window time in which the subject is exposed to the X-ray, and converts the X-ray into an electrical signal to output the electrical signal as a video signal. The X-ray detecting apparatus subtracts the offset video signal determined according to the window time in the video signal to generate a real video signal representing the X-ray result for photographing the subject.