Compensation circuit for use in a high resolution amplified flat panel for radiation imaging
Assignee1294339 Ontario, Inc.
InventorZhong Shou Huang
Life of this patent
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Abstract
A compensation circuit for use in a high resolution amplified flat panel for radiation imaging. The circuit includes an amplifier having an input terminal to receive amplified signal charge output on a source line by a selected pixel of the flat panel in response to a gate pulse. The amplified signal charge has a DC bias. Switching means is used to connect the input terminal to a potential voltage source when the amplified charge is received. The potential voltage source includes a magnitude substantially the same as the DC bias but opposite in polarity to offset the DC bias.
Claims3
A compensation circuit for use in a high resolution amplified flat panel for radiation imaging comprising:
- an amplifier having an input terminal to receive amplified signal charge output on a source line by a selected pixel of said flat panel in response to a gate pulse, said amplified signal charge having a dc bias;
- and
- switch means to connect said input terminal to a potential voltage source when said amplified charge is received, said potential voltage source having a magnitude substantially the same as said dc bias but opposite in polarity to offset said dc bias.
Dependencies are inferred from the claim text.