Automatic exposure detection circuit for imaging applications
AssigneeAnalog Devices, Inc.
InventorGary R. Carreau
Life of this patent
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Abstract
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.
Claims18
A method for automatic exposure detection in imaging applications comprises:
- entering a low power state at an imaging panel;
- restricting an input signal voltage to a first voltage at a sense circuit in the imaging panel, wherein restricting the input signal voltage comprises clamping the input signal voltage at one of a diode and a charge amplifier;
- receiving an input signal at the sense circuit in the imaging panel;
- sensing a change in the input signal voltage, wherein the change in the input signal voltage indicates exposure to an x-ray signal;
- and
- exiting the low power state based on the change in the input signal voltage.
A system for automatic exposure detection in imaging applications comprises:
- an imaging panel including a low power mode;
- a sense circuit for restricting an input signal voltage to a first voltage and receiving an input signal in the low power mode, wherein the sense circuit includes at least one of a diode and a charge amplifier for clamping the input signal voltage;
- and
- a sensor for sensing a change in the input signal voltage at the at least one of the diode and the charge amplifier, wherein the change in input signal voltage indicates exposure to an x-ray signal.
A system for automatic exposure detection in imaging applications comprises:
- an imaging panel including a low power mode;
- a sense circuit for restricting an input signal voltage to a first voltage and for receiving an input signal in the low power mode;
- wherein the sense circuit including a means for clamping the input signal voltage;
- and
- means for sensing a change in the input signal voltage, wherein the change in input signal voltage indicates exposure to an x-ray signal.
Dependencies are inferred from the claim text.