Patent ID: 8558929
Filing Date: 2013-10-15
Classification: H04N

Abstract:
1. An x-ray imaging array comprising a plurality of pixel sites, each pixel site comprising: a) at least one photosensing element providing a variable signal in response to incident radiation; b) a first frame storage circuit electrically coupled to the photosensing element, wherein the first frame storage circuit comprises: (i) a first charge storage element for storing, in response to a first incident radiation in a first exposure period, a first signal provided by the photosensing element; (ii) a first switching element disposed to switch an electrode of the photosensing element to the first frame storage circuit; (iii) a second switching element including a first electrode connected to receive the signal stored in the first storage element and a second electrode, the second switching element disposed to switch the first charge storage element to a single signal readout element for reading the signal stored in the first charge storage element; and c) a second frame storage circuit electrically coupled to the photosensing element, wherein the second frame storage circuit comprises: (i) a second charge storage element for storing, in response to second exposure period, a second signal provided by the photosensing element; (ii) a third switching element disposed to switch an electrode of the photosensing element to the second frame storage circuit; (iii) a fourth switching element including a first electrode connected to receive the signal stored in the second storage element and a second electrode, the second switching element disposed to switch the second charge storage element to the single signal readout element for reading the signal stored in the second charge storage element; and a single signal readout element comprising: (i) a single sensing circuit for more than one pixel site, the single sensing circuit displaced from the plurality of pixel sites; and (ii) a data line extending from the single sensing circuit to the second electrode of each of the second switching elements and the fourth switching elements of the more than one pixel site.