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    • 72. 发明申请
    • PANORAMIC IMAGING APPARATUS AND IMAGE PROCESSING METHOD FOR PANORAMIC IMAGING
    • 全景成像装置和全景成像的图像处理方法
    • US20090310845A1
    • 2009-12-17
    • US12083777
    • 2006-10-19
    • Koichi OgawaTsutomu YamakawaTakashi Sue
    • Koichi OgawaTsutomu YamakawaTakashi Sue
    • G06K9/00
    • A61B6/14A61B6/583
    • A panoramic imaging apparatus is provided, which is able to freely display a focus-optimized internal structural image of the tooth row depending on a position using image data acquired by only one-time X-ray panoramic imaging from an arbitrary section along a patient's tooth row.The panoramic imaging apparatus comprise an X-ray source (31) and a detector (32) outputting a digital electrical signal depending on an incident X-ray at a constant frame rate. This apparatus further comprises means (24) for moving a pair of the X-ray source and the detector around an object in a state where the X-ray source and the detector are opposed to each other with the object located therebetween, means (54) for sequentially storing, as frame data, the electrical signal outputted by the detector, means (56) for producing a panoramic image of a desired section of the object based on the frame data, and means (56, 57, 58) for producing a partial sectional image using the frame data, the partial sectional image being an image of a partial region specified on the panoramic image and being focused depending on a desired position in an imaging space.
    • 提供了一种全景成像装置,其能够根据使用从患者牙齿的任意部分仅通过一次X射线全景成像获得的图像数据的位置自由地显示齿列的焦点优化内部结构图像 行。 全景成像装置包括X射线源(31)和检测器(32),其以恒定的帧速率输出取决于入射的X射线的数字电信号。 该装置还包括用于在X射线源和检测器彼此相对的状态下使一对X射线源和检测器围绕物体移动的装置(24),其中物体位于其间,装置(54) ),用于将由检测器输出的电信号作为帧数据顺序存储,用于基于帧数据产生对象的期望部分的全景图像的装置(56),以及用于产生所述对象的装置(56,​​57,58) 使用帧数据的部分剖面图像,部分截面图像是在全景图像上指定的部分区域的图像,并且根据成像空间中的期望位置进行聚焦。
    • 76. 发明申请
    • Adaptive antenna apparatus provided with controller for controlling to select best demodulated signal
    • 具有用于控制以选择最佳解调信号的控制器的自适应天线装置
    • US20070010202A1
    • 2007-01-11
    • US11315329
    • 2005-12-23
    • Atsushi YamamotoKoichi OgawaHiroshi IwaiYoshio KoyanagiAkira Kato
    • Atsushi YamamotoKoichi OgawaHiroshi IwaiYoshio KoyanagiAkira Kato
    • H04B1/00
    • H04B7/0848
    • An adaptive antenna apparatus including a reception adaptive control circuit is provided. The reception adaptive control circuit adaptively controls respective received signals received by a plurality of antenna elements, and outputs the adaptively-controlled received signals as a combined received signal. A demodulator demodulates the combined received signal to a demodulated signal, and demodulates the respective received signals separately received by the respective antenna elements to demodulated signals. A controller compares signal quality of the demodulated signal of the combined received signal with signal qualities of the demodulated signals of the respective received signals separately received by the respective antenna elements, respectively, selects a demodulated signal having the highest signal quality, and controls to receive a received signal including a selected demodulated signal.
    • 提供一种包括接收自适应控制电路的自适应天线装置。 接收自适应控制电路自适应地控制由多个天线元件接收的各个接收信号,并且将自适应控制的接收信号作为组合的接收信号输出。 解调器将组合的接收信号解调为解调信号,并将由各个天线元件接收的各个接收信号解调为解调信号。 控制器将组合的接收信号的解调信号的信号质量与由各个天线单元分别接收的相应接收信号的解调信号的信号质量进行比较,选择具有最高信号质量的解调信号,并且控制接收 包括所选择的解调信号的接收信号。
    • 79. 发明授权
    • Helical antenna apparatus provided with two helical antenna elements, and radio communication apparatus provided with same helical antenna apparatus
    • 具有两个螺旋天线元件的螺旋天线装置,以及具有相同螺旋天线装置的无线通信装置
    • US06806836B2
    • 2004-10-19
    • US10369754
    • 2003-02-21
    • Koichi OgawaHiroshi IwaiYoshio Koyanagi
    • Koichi OgawaHiroshi IwaiYoshio Koyanagi
    • H01Q124
    • H01Q1/242H01Q1/362H01Q11/08
    • In a helical antenna apparatus, a first variable capacitance element is connected between a first helical antenna element and a second helical antenna element, and a second variable capacitance element is connected between a first terminal of a balanced port of a balanced to unbalanced transformer and the first helical antenna element. A third variable capacitance element is connected between a second terminal of the balanced port of the balanced to unbalanced transformer and the second helical antenna element. A detector measures a detection voltage Vd corresponding to a reflected power of a reflected signal reflected from the first and second helical antenna elements when the first and second helical antenna elements are fed with a transmission signal from a radio transmitter, and an adaptive controller adaptively controls respective capacitance values of the first to third variable capacitance elements.
    • 在螺旋天线装置中,第一可变电容元件连接在第一螺旋天线元件和第二螺旋天线元件之间,第二可变电容元件连接在平衡到不平衡变压器的平衡端口的第一端子和 第一螺旋天线元件。 第三可变电容元件连接在平衡到不平衡变压器的平衡端口的第二端子和第二螺旋天线元件之间。 当第一和第二螺旋天线元件被馈送来自无线电发射机的发射信号时,检测器测量对应于从第一和第二螺旋天线元件反射的反射信号的反射功率的检测电压Vd,并且自适应控制器自适应地控制 第一至第三可变电容元件的相应电容值。