X-ray Panel Readout Circuit Low Power Mode Sensing
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Solution Overview
Problem
Current x-ray systems face challenges in optimizing battery life due to increased power usage and component weight, as they either require additional components for separate sensing paths or significantly increase power consumption by reusing main readout electronics for x-ray detection.
Innovation Solution
Implementing a low power mode in wireless digital x-ray panels that reuses parts of the readout integrated circuit (ROIC) signal chain for x-ray sensing, including a sense circuit that restricts input signal voltage and uses a converter to detect changes, thereby reducing power consumption by 95-98% without adding cost, area, or weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate sensing path is created for x-ray detection, then x-ray signal detection capability is improved, but device complexity and weight increase
Solution Approach 1:
The patent makes the main readout electronics perform dual functions: serving as both the primary imaging signal path and the x-ray sensing path. By reusing the same readout circuitry for both purposes, the system eliminates the need for separate sensing path components, thereby reducing device complexity and weight while maintaining x-ray detection capability
Solution Approach 2:
The patent merges the x-ray sensing function with the main readout electronics by combining the x-ray signal path with the imaging signal path. This consolidation integrates multiple functions into a single shared infrastructure, reducing the overall number of components and simplifying the device architecture
2Device complexity
If main readout electronics are reused for x-ray detection, then device complexity is reduced, but power consumption increases
Solution Approach 1:
The patent implements periodic action by enabling the main readout electronics only during brief intervals when x-ray exposure is detected, rather than keeping them continuously active. The system enters low power mode during idle periods and activates the readout path on-demand when needed for sensing, thereby reducing overall power consumption while maintaining detection capability
Solution Approach 2:
The patent applies dynamics by dynamically switching the power state of the main readout electronics between active and low power modes based on operational needs. The system adapts its power consumption characteristics in real-time, activating full functionality only when x-ray detection is required and entering sleep mode otherwise
3Speed
If main readout electronics are kept active for x-ray sensing, then sensing responsiveness is improved, but battery life decreases
Solution Approach 1:
The patent uses periodic action to activate the main readout electronics only during brief intervals when x-ray exposure is detected, rather than maintaining continuous operation. This on-demand activation approach maintains sensing responsiveness when needed while dramatically reducing overall power consumption to extend battery life
Solution Approach 2:
The patent implements preliminary action by using a separate low-power x-ray sensing path to detect exposure events before activating the main readout electronics. This preliminary detection mechanism allows the system to remain in low power mode until absolutely necessary, minimizing power consumption while ensuring rapid response when x-ray exposure occurs
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 allows for efficient x-ray signal detection while maintaining performance during normal imaging operations, optimizing power savings and extending battery life without compromising system design or performance.
Implementation Method 1
restricting an input signal voltage to a first voltage at a sense circuit in the imaging panel
Implementation Method 2
sensing a change in the input signal voltage, wherein the change in the input signal voltage indicates exposure to an x-ray signal
Data Source
AI summary
Systems and methods are provided for an automatic exposure detection feature for adding to an x-ray panel readout device, including an imaging panel having a low power mode, a sense circuit for receiving an input signal in the low power mode and restricting an input signal voltage to a first voltage, and a sensor for sensing a change in the input signal voltage, wherein the change in input signal voltage indicates exposure to an x-ray signal.