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    • 3. 发明授权
    • Interdigital bandpass filter
    • 叉指带通滤波器
    • US5352996A
    • 1994-10-04
    • US11144
    • 1993-01-29
    • Ei Kawaguchi
    • Ei Kawaguchi
    • H01P1/205H01P1/203H01P5/08H01P11/00
    • H01P1/20345Y10T29/49016
    • An interdigital bandpass filter is provided which presents improved performance and is easy to manufacture. The filter is provided with a resonator plate which includes a plurality of resonator elements formed integrally with the resonator plate. For defining a space for accommodating these resonator elements, spacer plates are formed with respective openings. The filter is assembled by stacking the spacer and resonator plates and case plates and securing them to each other. Input/output conductors are coupled to the resonator elements through coaxial line coupling portions which are provided in such a manner that they extend in directions intersecting with the plane of the resonator plate toward the accommodating space.
    • 提供了一种交叉指带式滤波器,其具有改进的性能并且易于制造。 滤波器设置有谐振器板,其包括与谐振器板一体形成的多个谐振元件。 为了限定用于容纳这些谐振器元件的空间,间隔板形成有相应的开口。 过滤器通过堆叠间隔件和谐振器板和壳板并将它们彼此固定来组装。 输入/输出导体通过同轴线耦合部分耦合到谐振器元件,所述同轴线耦合部分以这样的方式设置,使得它们在与谐振器板的平面相交向与容纳空间相交的方向上延伸。
    • 4. 发明授权
    • Flow display type indicating method and apparatus
    • 流量显示类型指示方法和装置
    • US5677501A
    • 1997-10-14
    • US694340
    • 1996-08-08
    • Ei KawaguchiMasaaki Nagai
    • Ei KawaguchiMasaaki Nagai
    • G01D1/12G01D7/00G01D7/08G01R13/02G01R13/40G01R29/08G09G3/04G09G5/00G01F23/14
    • G01R13/407G01D7/08G01R29/0892
    • A flow display type indicator is provided which indicates the variation or the velocity of variation of the value of a physical quantity or a parameter in a readily identifiable form. The indicator includes a flow image forming unit to indicate the value of the predetermined physical quantity in a flow representation by enabling a flow representing image to be formed at one of a plurality of positions including first to n-th positions which are orderly disposed and offset from each other along a predetermined line. A flow image selector selects one from flow representing images at the first to the n-th positions in one of first and second directions depending on the polarity of an input signal at a speed in accordance with the magnitude of the input signal to allow the flow representing image forming unit to form a selected flow representing image.
    • 提供流量显示类型指示器,其指示物理量或参数的值的变化或变化速度以易于识别的形式。 指示器包括流图像形成单元,用于通过使得能够在多个位置中的一个位置处形成表示图像的流程来指示流程图中的预定物理量的值,该多个位置包括有序布置和偏移的第一至第n位置 沿着预定的线彼此。 流图像选择器根据输入信号的极性根据输入信号的大小,根据输入信号的极性,在第一和第二方向之一的第一至第n位置处的图像中选择一个,以允许流 表示图像形成单元以形成表示图像的选定流。
    • 5. 发明授权
    • Apparatus for quickly capturing cordless telephone channel to be measured
    • 用于快速捕获要测量的无绳电话信道的装置
    • US5555552A
    • 1996-09-10
    • US246162
    • 1994-05-19
    • Ei Kawaguchi
    • Ei Kawaguchi
    • H04B1/38H04B7/26H04B17/00H04M1/24H04M1/725H04W24/00H04W88/02H04Q7/38
    • H04M1/72511H04B17/382H04M1/24H04M1/72505
    • An apparatus capable of quickly capturing a channel to be measured of a cordless telephone in a shorter period of time than the time required by a conventional apparatus. After the waves received within all channels are converted in respect of their frequencies by a frequency converter, those out of the band are eliminated by an all-channel band pass filter. The waves outputted from the filter are amplified by an intermediate frequency amplifier and then inputted to a counter circuit. Since magnitude of the amplitude of the signal in the received channel to be measured is two or three times as large as that of interference waves, the counter circuit outputs a value within (the frequency of the channel to the measured).+-.(a half of the frequency between channels), The data processing unit determines the channel to be measured closest to the count value and makes the oscillation frequency from a local oscillator conform to the frequency corresponding to the captured channel by means of a frequency control unit.
    • 一种能够在比常规装置所需的时间更短的时间段内快速捕获无绳电话的待测量信道的装置。 在所有信道中接收到的波被频率转换器相对于它们的频率进行转换之后,通过全通道带通滤波器去除带外的波。 从滤波器输出的波被中频放大器放大,然后输入到计数器电路。 由于待测量的接收信道中的信号的振幅幅度是干扰波的幅度的两倍或三倍,所以计数器电路输出一个值(通道的测量频率)+/-(a 通道之间的频率的一半),数据处理单元确定最接近计数值的测量通道,并使来自本地振荡器的振荡频率与通过频率控制单元对应于所捕获的通道的频率相一致。