发明名称 |
Diagnostic X-ray apparatus. |
摘要 |
<p>A diagnostic X-ray apparatus emitting pulsed X-ray radiation includes a processor (24) for performing digital X-ray subtraction of a previous mask image from current images. The apparatus includes circuitry for digitisation of the video signals from an image intensifier-TV chain, digital subtraction to obtain digital difference signals, and subsequent reconversion of the resultant digital difference video signals to analogue signals. Pulsed X-ray exposures are performed during the blanking periods of the TV camera following which the television fields immediately following the pulsed X-ray exposure are scanned and read out, and are supplied to the processor for performing the digital X-ray subtraction.</p> |
申请公布号 |
EP0104769(A2) |
申请公布日期 |
1984.04.04 |
申请号 |
EP19830304932 |
申请日期 |
1983.08.25 |
申请人 |
KABUSHIKI KAISHA TOSHIBA |
发明人 |
OGURA, ICHIRO C/O TOKYO SHIBAURA DENKI K.K.;SUZUKI, MOTOMU C/O TOKYO SHIBAURA DENKI K.K.;FUJII, SENZO C/O TOKYO SHIBAURA DENKI K.K.;HONDA, MICHITAKA C/O TOKYO SHIBAURA DENKI K.K. |
分类号 |
G03B42/02;A61B6/00;G01N23/04;H04N5/32;H05G1/38;H05G1/64;(IPC1-7):04N5/32;05G1/64 |
主分类号 |
G03B42/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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