Patent ID: 7079189
Filing Date: 2006-07-18
Classification: G01T,H04N

Abstract:
1. An image sensing apparatus comprising: a radiation generating apparatus adapted to generate radiation; a sensor comprising a plurality of image pick up elements for converting radiation to electrical signals; a signal line adapted to read out said electrical signals from said image pick up elements; a preamplifier adapted to amplify said electrical signals read out from said image pickup elements through said signal line; a first power source adapted to set said signal line to a reference potential so as to set said image pick up elements to an initialized state; a second power source adapted to supply electrical power to said preamplifier; and a control circuit adapted to transmit an exposure permission signal to the radiation generating apparatus after initializing the plurality of image pick up elements, and control the first power source and the second power source to drive the preamplifier after transmission of the exposure permission signal, wherein the control circuit stops the power supply from the second power source after reading out the electrical signals from the image pick up element.