发明授权
- 专利标题: Ultrasonic imaging apparatus
- 专利标题(中): 超声波成像装置
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申请号: US556524申请日: 1990-07-24
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公开(公告)号: US5081996A公开(公告)日: 1992-01-21
- 发明人: Schuichi Kawasaki , Nobuo Yamazaki , Takeshi Sato
- 申请人: Schuichi Kawasaki , Nobuo Yamazaki , Takeshi Sato
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX1-192851 19890726
- 主分类号: G01N29/26
- IPC分类号: G01N29/26 ; A61B8/06 ; G01S7/52 ; G01S15/89
摘要:
An ultrasonic imaging apparatus comprises an ultrasonic transducer for transmitting ultrasonic beams to a subject and converting echoes from the subject to echo signals, a scan controller for selectively switching a scanning mode between a first scanning mode in which a predetermined number of rasters in each of a plurality of scanning blocks each having the predetermined number of rasters are scanned repeatedly and echo signals at a predetermined number of sample points in each of the rasters are extracted block by block and a second scanning mode in which a plurality of rasters are repeatedly scanned a predetermined number of times while at least one raster is shifted sequentially and data are output at constant intervals, a transmitter/receiver circuit for driving the ultrasonic transducer in accordance with a scanning mode selected by the scan controller, processes the echo signals output from the ultrasonic transducer to output an image signal and a television monitor for visually displaying the image signal.
公开/授权文献
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