发明名称 |
X-ray diagnostic apparatus |
摘要 |
In an X-ray diagnostic apparatus, there is additionally provided an aspect ratio conversion circuit in a video processor. A video signal derived from an X-ray TV camera for an R/F table system having an aspect ratio e.g., (1:1) is converted into a corresponding digital video signal. The digital video signal is alternately stored in two buffer memories in synchronism with a predetermined clock pulse, which accordingly may change the original aspect ratio (1:1) into a new one, i.e., (3:4). Then the video signal processed under the new aspect ratio is displayed on the monitor which has its own aspect ratio (3:4) different from the original aspect ratio of the TV camera.
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申请公布号 |
US4644395(A) |
申请公布日期 |
1987.02.17 |
申请号 |
US19850783809 |
申请日期 |
1985.10.04 |
申请人 |
TOKYO SHIBAURA DENKI KABUSHIKI KAISHA |
发明人 |
ITOU, SHOUICHI;KANEKO, MAKOTO;YASUHARA, HIROSHI |
分类号 |
A61B6/00;H04N5/32;(IPC1-7):H04N7/01 |
主分类号 |
A61B6/00 |
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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