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1. 发明授权

US06322506B1 Inclination angle detecting device for an ultrasound probe 失效
标题翻译：用于超声波探头的倾角检测装置
公开(公告)号：US06322506B1
公开(公告)日：2001-11-27
申请号：US09354120
申请日：1999-07-15
申请人： Hiroshi Nagai , Kohei Ono , Eishi Harasawa
发明人： Hiroshi Nagai , Kohei Ono , Eishi Harasawa
IPC分类号： A61B800
CPC分类号： G01N29/0609 , A61B8/42 , A61B8/4281 , G01N29/223 , G01N29/2487 , G01N2291/02475
摘要： An inclination angle detecting device comprises a reference arm attached near the contact area of an ultrasound probe with one end thereof being rotatably attached, a pressing means which presses the reference arm in a direction away from the ultrasound probe, and a detecting unit for detecting the amount of rotation of the reference arm. Placing the ultrasound probe against the surface of the body causes the reference arm to be rotated and pressed against the surface of the body in close contact, whereby the inclination angle is detected from the amount of rotation.
摘要翻译：一种倾斜角度检测装置，包括附接在超声波探头的接触区域附近的参考臂，其一端可旋转地安装，按压远离超声波探头的方向的基准臂的按压装置，以及检测单元参考臂的旋转量。将超声波探针放置在身体的表面上使得参考臂旋转并紧密接触身体的表面，由此从旋转量检测倾斜角度。

2. 发明授权

US5521851A Noise reduction method and apparatus 失效
标题翻译：降噪方法及装置
公开(公告)号：US5521851A
公开(公告)日：1996-05-28
申请号：US233684
申请日：1994-04-26
申请人： Daming Wei , Eishi Harasawa , Hajime Harada
发明人： Daming Wei , Eishi Harasawa , Hajime Harada
IPC分类号： H04B1/12 , H04B15/00
CPC分类号： H04B1/123
摘要： A method and apparatus is disclosed to reduce noise which overlaps detected signals in a common frequency band for detection of distributed signals from multiple measurement points. The method decomposes a input signal into a noise-free part called basic signal and a noise-overlapping part called residual signal. Noise contained in residual signal is recognized by comparing it with a comparison signal. The comparison signal corresponding to a measurement point is computed by a linear combination of all other points weighted with parameters which reflect amplitude relationship of distributed signals and are calculated during a learning phase at the beginning of measurement. With residual signal and corresponding comparison signal, a noise index is calculated and then used to extract signal components from the residual signal. The extracted signal components are added to basic signal as the output of the method. The method is effective in reducing signal-overlapping noise with little distortion of signal.
摘要翻译：公开了一种减少噪声的方法和装置，其用于检测来自多个测量点的分布式信号的公共频带中的检测信号。该方法将输入信号分解为称为基本信号的无噪声部分和称为残余信号的噪声重叠部分。残留信号中包含的噪声通过与比较信号进行比较来识别。对应于测量点的比较信号通过所有其他点的线性组合计算，所有其他点被加权的参数反射分布信号的幅度关系，并在测量开始时的学习阶段计算。利用残差信号和对应的比较信号，计算噪声指数，然后用于从残差信号中提取信号分量。提取的信号分量作为方法的输出被添加到基本信号。该方法有效减少信号重叠噪声，信号失真小。

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