Radiation image pickup apparatus and its control method
US7514690B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2005 |
| Grant date | Apr 7, 2009 |
| Priority date | — |
| Expiry date | Apr 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Each pixel is provided with a photoelectric converting device or the like, a source-follower-type first transistor or the like, a second transistor to be turned on when reading an electrical signal from a pixel selected by a shift register for each line and outputting the signal to a readout circuit unit and a third transistor to be turned on when resetting a photoelectric converting device set to a pixel selected by a shift register for each line. Moreover, a bias power source for supplying a photoelectric conversion bias to a photoelectric converting device and a reset power source for supplying a reset bias to a photoelectric converting device are set in the readout circuit unit. By using the radiation image pickup apparatus and its control method, it is possible to improve the S/N ratio while restraining noises and preferably, it is possible to perform stable and high-speed dynamic-image photographing and restrain dark current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.