超音波診断装置
- 专利权人:
- 日立アロカメディカル株式会社
- 发明人:
- 国田 正徳,赤羽 睦弘
- 申请号：
- JP2008228521
- 公开号：
- JP5308748B2
- 申请日:
- 2008.09.05
- 申请国别(地区):
- JP
- 年份:
- 2013
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To enhance a target position setting function by a technology for extracting in-vivo information from a target position by utilizing digital-modulated continuous wave.
SOLUTION: A first digital modulating part 21 outputs a first digital-modulated continuous wave signal, and a second digital modulating part 22 outputs a second digital-modulated continuous wave signal. A multiplexing part 20 forms transmission signals obtained by multiplexing the first and second continuous wave signals. Delay circuits 27I and 27Q delay the first continuous wave signal by a quantity of delay corresponding to the depth of the target position, and output delayed reference signals. With these signals, a receiving mixer 29 extracts a receiving signal from a first target position. Delay circuits 28I and 28Q delay the second continuous wave signal by a quantity of delay corresponding to the depth of the target position, and output delayed reference signals. With these signals, a receiving mixer 30 extracts a receiving signal from a second target position.
COPYRIGHT: (C)2010,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
