摘要 |
An imaging array has a plurality of pixel sites (22), each having a photosensing element (24) providing a variable signal in response to incident radiation. A first frame storage circuit (46a) is electrically coupled to the photosensing element and has a first charge storage element for storing a first photosensing element signal and a first switching element (26) to switch the photosensing element to the first frame storage circuit. A second switching element (26) switches the first charge storage element (32) for reading the signal stored. A second frame storage circuit (46b) is electrically coupled to the photosensing element and has a second charge storage element for storing a second signal. A third switching element (26) switches the photosensing element to the second frame storage circuit. A fourth switching element (26) switches the second charge storage element for reading the signal stored. |