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34 条记录 (耗时 0.026 秒)

    High frequency switch
    2.
    发明授权
    High frequency switch 失效
    高频开关

    公开(公告)号：US06933802B2

    公开(公告)日：2005-08-23

    申请号：US10649626

    申请日：2003-08-28

    申请人： Hiroshi Kushitani ,  Yasushi Nagata ,  Takeo Yasuho

    发明人： Hiroshi Kushitani ,  Yasushi Nagata ,  Takeo Yasuho

    IPC分类号： H01P1/15 ,  H03K17/693 ,  H04B1/44

    CPC分类号： H01P1/15 ,  H03K17/693

    摘要： A frequency switch is configured with two FET switches. One end of a second FET switch is connected between an I/O port and a reception port and the other end is ground. A strip line is connected between the second FET switch and the I/O port, and has an electrical length equivalent to ¼ wavelength of a high frequency signal input from transmission port.

    摘要翻译： 频率开关配置有两个FET开关。 第二FET开关的一端连接在I / O端口和接收端口之间，另一端接地。 带状线连接在第二FET开关和I / O端口之间，其电气长度等于从传输端口输入的高频信号的1/4波长。

    High frequency switch module
    3.
    发明授权
    High frequency switch module 失效
    高频开关模块

    公开(公告)号：US06856187B2

    公开(公告)日：2005-02-15

    申请号：US10696646

    申请日：2003-10-29

    申请人： Hiroshi Kushitani ,  Yasushi Nagata ,  Takeo Yasuho

    发明人： Hiroshi Kushitani ,  Yasushi Nagata ,  Takeo Yasuho

    IPC分类号： H01P1/15 ,  H03H7/19 ,  H03H7/46 ,  H03H11/34 ,  H03K17/76 ,  H04B1/50 ,  H03K17/04

    CPC分类号： H03H11/342 ,  H01P1/15 ,  H03H7/19 ,  H03H7/461 ,  H03K17/76

    摘要： A high frequency switch module can handle transmit-receive signals of different frequency bands and realize excellent isolation. The high frequency switch module comprises a discriminating filter, a low-band high frequency switch, and a high-band frequency switch, wherein high-band 90-degree phase shifter that forms at least a high-band high frequency switch is configured by a high-pass filter, and a choke line is parallel-connected to the high-pass filter.

    摘要翻译： 高频开关模块可以处理不同频带的发送接收信号，实现优异的隔离。 高频开关模块包括识别滤波器，低频高频开关和高频带开关，其中形成至少高频高频开关的高频带90度移相器由 高通滤波器和扼流线并联连接到高通滤波器。

    Surface acoustic wave filter
    5.
    发明授权
    Surface acoustic wave filter 有权
    表面声波滤波器

    公开(公告)号：US07183878B2

    公开(公告)日：2007-02-27

    申请号：US10526919

    申请日：2004-08-20

    申请人： Hiroshi Kushitani ,  Shinobu Nakaya ,  Takeo Yasuho

    发明人： Hiroshi Kushitani ,  Shinobu Nakaya ,  Takeo Yasuho

    IPC分类号： H03H9/72 ,  H03H9/64

    CPC分类号： H03H9/0576

    摘要： A surface acoustic wave filter having a plurality of the transmission lines, each with one end connected to the surface acoustic wave element and the other end thereof connected to a ground. The transmission lines are divided by an additional transmission line which has multiple connections to a ground electrode at an interval equal to or lower than a wavelength of a using frequency. This structure provides grounds among a plurality of transmission lines and thus isolation among terminals can be increased to improve the filter characteristic.

    摘要翻译： 一种表面声波滤波器，具有多个传输线，每个传输线的一端连接到声表面波元件，另一端连接到地面。 传输线被以与等于或小于使用频率的波长的间隔具有到接地电极的多个连接的附加传输线分开。 这种结构在多个传输线之间提供接地，从而可以增加终端之间的隔离以提高滤波器特性。

    Circuit board and method of manufacturing the same
    7.
    发明申请
    Circuit board and method of manufacturing the same 审中-公开
    电路板及其制造方法

    公开(公告)号：US20100025099A1

    公开(公告)日：2010-02-04

    申请号：US12461320

    申请日：2009-08-07

    申请人： Toshio Sugawa ,  Satoshi Murakawa ,  Masaaki Hayama ,  Takeo Yasuho

    发明人： Toshio Sugawa ,  Satoshi Murakawa ,  Masaaki Hayama ,  Takeo Yasuho

    IPC分类号： H05K1/02 ,  H05K3/10

    CPC分类号： H05K3/4069 ,  H05K1/095 ,  H05K2201/0305 ,  H05K2201/0317 ,  H05K2201/0355 ,  H05K2203/1461 ,  Y10T29/49155 ,  Y10T428/24917

    摘要： A circuit board is manufactured by filling a via-hole formed in an insulating substrate with conductive material, disposing conductive layers on both sides of the insulating substrate, and forming alloy of component material of the conductive material with component material of the conductive layers. In the circuit board, therefore, the conductive material filled in the via-hole formed in the insulating substrate is securely connected electrically as well as mechanically to the conductive layers on both sides of the insulating substrate with high reliability.

    摘要翻译： 通过用导电材料填充形成在绝缘基板中的通孔来制造电路板，在绝缘基板的两侧设置导电层，以及将导电材料的组分材料的合金与导电层的成分材料形成。 因此，在电路板中，填充在形成于绝缘基板上的通路孔中的导电材料与绝缘基板两侧的导电层电连接并且机械地牢固地连接在一起，具有高可靠性。

    Voltage step-up and step-down DC/DC converter
    8.
    发明授权
    Voltage step-up and step-down DC/DC converter 有权
    电压升压和降压型DC / DC转换器

    公开(公告)号：US07129680B2

    公开(公告)日：2006-10-31

    申请号：US10718306

    申请日：2003-11-20

    申请人： Hiroshi Higashitani ,  Takeo Yasuho

    发明人： Hiroshi Higashitani ,  Takeo Yasuho

    IPC分类号： G05F6/613

    CPC分类号： H02M3/1582 ,  H02M2001/0032 ,  Y02B70/16

    摘要： DC/DC converter includes a voltage converting circuit connected between the input terminal and output terminal, a fast transient response circuit, a step-up and step-down operation determining circuit, a voltage comparator, and a switch control circuit.

    摘要翻译： DC / DC转换器包括连接在输入端子和输出端子之间的电压转换电路，快速瞬态响应电路，升压和降压操作确定电路，电压比较器和开关控制电路。

    Surface acoustic wave filter
    9.
    发明申请
    Surface acoustic wave filter 有权
    表面声波滤波器

    公开(公告)号：US20060164182A1

    公开(公告)日：2006-07-27

    申请号：US10526919

    申请日：2004-08-20

    申请人： Hiroshi Kushitani ,  Shinobu Nakaya ,  Takeo Yasuho

    发明人： Hiroshi Kushitani ,  Shinobu Nakaya ,  Takeo Yasuho

    IPC分类号： H03H9/72 ,  H03H9/64

    CPC分类号： H03H9/0576

    摘要： A surface acoustic wave filter having at least one transmission line of which one end of a plurality of the transmission lines is connected to the surface acoustic wave element and the other end thereof is connected to a ground, and the transmission lines being divided by a transmission line which is connected to a ground electrode at an interval equal to or lower than a wavelength of a using frequency. This structure provides grounds among a plurality of transmission lines and thus isolation among terminals can be increased to improve the filter characteristic.

    摘要翻译： 一种表面声波滤波器，其具有至少一条传输线，多条传输线的一端连接到声表面波元件，另一端连接到地，并且传输线被传输 线以等于或低于使用频率的波长的间隔连接到接地电极。 这种结构在多个传输线之间提供接地，从而可以增加终端之间的隔离以提高滤波器特性。

    Digital signal receiver
    10.
    发明申请
    Digital signal receiver 审中-公开
    数字信号接收机

    公开(公告)号：US20050249316A1

    公开(公告)日：2005-11-10

    申请号：US10524203

    申请日：2004-06-14

    申请人： Hiroaki Ozeki ,  Yuichi Watanabe ,  Ippei Kanno ,  Yasuo Oba ,  Takeo Yasuho

    发明人： Hiroaki Ozeki ,  Yuichi Watanabe ,  Ippei Kanno ,  Yasuo Oba ,  Takeo Yasuho

    IPC分类号： H04B1/26 ,  H04J11/00 ,  H04L27/26 ,  H04L27/22

    CPC分类号： H04L27/2647 ,  H03J1/0041 ,  H04N5/4401 ,  H04N21/41407 ,  H04N21/4305 ,  H04N21/4382 ,  H04N21/4436

    摘要： A digital signal receiver includes a reference signal generator for generating a first reference signal, a base band transform circuit for converting a first high-frequency signal with digital modulation into a base band signal with using the first reference signal, a frequency divider to divide the first reference signal, a frequency multiplier to multiply a frequency of a signal output from the frequency divider, and a digital demodulator to demodulate a signal output from the base band transform circuit with using the signal output from the frequency multiplier as a reference signal. The digital signal receiver consumes a small power since a small current flows in the frequency multiplier.

    摘要翻译： 数字信号接收机包括用于产生第一参考信号的参考信号发生器，用于使用第一参考信号将具有数字调制的第一高频信号转换成基带信号的基带变换电路，分频器 第一参考信号，乘法器，用于乘以从分频器输出的信号的频率和数字解调器，以使用从倍频器输出的信号作为参考信号来解调从基带变换电路输出的信号。 数字信号接收器消耗小功率，因为​​小的电流在倍频器中流动。