| US 7,564,038 B2 | ||
| Imaging apparatus, method for driving the same and radiation imaging system | ||
| Tadao Endo, Honjo (Japan); Toshio Kameshima, Kumagaya (Japan); Tomoyuki Yagi, Honjo (Japan); Katsuro Takenaka, Honjo (Japan); and Keigo Yokoyama, Honjo (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Aug. 28, 2007, as Appl. No. 11/846,054. | ||
| Claims priority of application No. 2006-236449 (JP), filed on Aug. 31, 2006; and application No. 2007-217265 (JP), filed on Aug. 23, 2007. | ||
| Prior Publication US 2008/0083876 A1, Apr. 10, 2008 | ||
| Int. Cl. G01T 1/20 (2006.01); G01T 1/24 (2006.01) | ||
| U.S. Cl. 250—370.11 | 11 Claims |
| 1. An imaging apparatus comprising:
a detection unit including a plurality of pixels arranged in row and column directions, wherein each of the pixels includes
a conversion element for converting an incident radiation or an incident light into an electric charge and a switch element
for transferring an electric signal corresponding to the electric charge;
a drive circuit unit for driving a plurality of the switch elements arranged in the row direction to transfer the electric
signals in parallel from the pixels arranged in the row direction;
a read out circuit unit for reading out the electric signals in parallel, wherein the read out circuit unit comprises a first
sampling and holding circuit for sampling and holding an electric signal from pixels arranged along one column of the detection
unit, and a second sampling and holding circuit for sampling and holding an electric signal from pixels arranged along another
column of the detection unit; and
a control unit for controlling the read out circuit unit, wherein the control unit controls the read out circuit unit such
that the first and second sampling and holding circuits perform the sampling and holding in mutually different timings.
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