放射線画像読取装置
- 专利权人:
- 東芝電子管デバイス株式会社
- 发明人:
- 藤田 修一
- 申请号：
- JP2009289488
- 公开号：
- JP5322060B2
- 申请日:
- 2009.12.21
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide a radiographic image reader capable of reducing noise at low cost, without needing strict timing adjustment for each scanning line, nor requiring a complicated device.
SOLUTION: The radiation image reader includes at least a drive control circuit 6 for transmitting a drive signal synchronizing with a start pulse which is not synchronized with a switching power source drive clock, excepting a start point to a gate drive circuit 5 a frequency division/phase control circuit 8 for transmitting, to a reading circuit 7, a reading/holding signal having a frequency identical to that of the drive signal and delayed from the drive signal by a predetermined phase and a region luminance correction circuit 11 for acquiring overall pixels from the reading circuit 7, in a state without irradiating radiation and actual signal data from the overall pixels by radiation irradiation, and performing a process of canceling the dark signal data from the actual signal data.
COPYRIGHT: (C)2011,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
