| US 7,573,041 B2 | ||
| Imaging apparatus, radiation imaging apparatus, and radiation imaging system | ||
| Toshio Kameshima, Kumagaya (Japan); Tadao Endo, Honjo (Japan); Tomoyuki Yagi, Honjo (Japan); Katsuro Takenaka, Kodama-gun (Japan); and Keigo Yokoyama, Honjo (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Feb. 27, 2008, as Appl. No. 12/38,346. | ||
| Application 12/038346 is a continuation of application No. 11/696781, filed on Apr. 05, 2007, granted, now 7,408,167. | ||
| Claims priority of application No. 2006-124144 (JP), filed on Apr. 27, 2006. | ||
| Prior Publication US 2008/0217548 A1, Sep. 11, 2008 | ||
| Int. Cl. H01L 25/16 (2006.01) | ||
| U.S. Cl. 250—370.09 | 4 Claims |
| 1. An imaging apparatus, comprising:
a plurality of pixels arranged in row and column directions and each having a conversion element for converting radiation
or light into an electrical signal and a switch element, wherein said plurality of pixels are classified into a plurality
of groups;
a plurality of signal wirings connected to said plurality of switch elements in the column direction; and
a read-out circuit connected to said plurality of signal wirings, wherein said read-out circuit comprises a plurality of sampling
and holding circuits corresponding to said plurality of signal wirings, and said plural sampling and holding circuits operate
with timing different for each of said plurality of groups.
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