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    High frequency filter
    1.
    发明授权
    High frequency filter 有权
    高频滤波器

    公开(公告)号：US06870446B2

    公开(公告)日：2005-03-22

    申请号：US10252105

    申请日：2002-09-23

    申请人： Ryoichi Ohara ,  Kazuhide Abe ,  Takashi Kawakubo ,  Hiroshi Yoshida ,  Hiroshi Tsurumi ,  Ryuichi Fujimoto

    发明人： Ryoichi Ohara ,  Kazuhide Abe ,  Takashi Kawakubo ,  Hiroshi Yoshida ,  Hiroshi Tsurumi ,  Ryuichi Fujimoto

    IPC分类号： H03H9/00 ,  H03H9/54 ,  H03H9/58 ,  H03H9/60

    CPC分类号： H03H9/605 ,  H03H9/0095 ,  H03H9/542 ,  H03H9/581 ,  H03H2009/02196

    摘要： A high frequency filter comprises thin film piezoelectric resonators connected in series between the input/output nodes, thin film piezoelectric resonators connected in parallel between the input/output nodes and a variable voltage circuit adapted to change the voltage applied to at least either the thin film piezoelectric resonators connected in series or the thin film piezoelectric resonators connected in parallel. The resonance characteristic of at least either the thin film piezoelectric resonators connected in series or the thin film piezoelectric resonator connected in parallel is shifted by changing the voltage applied by the variable voltage circuit to change the pass characteristic of the filter.

    摘要翻译： 高频滤波器包括串联连接在输入/输出节点之间的薄膜压电谐振器，并联连接在输入/输出节点之间的薄膜压电谐振器和可变电压电路，可变电压电路适于改变施加到至少薄膜的电压 串联连接的压电谐振器或并联连接的薄膜压电谐振器。 串联连接的薄膜压电谐振器或并联连接的薄膜压电谐振器中的至少一个的谐振特性通过改变由可变电压电路施加的电压来改变滤波器的通过特性而被移位。

    Tunable filter and portable telephone
    3.
    发明授权
    Tunable filter and portable telephone 失效
    可调滤波器和便携式电话

    公开(公告)号：US07135940B2

    公开(公告)日：2006-11-14

    申请号：US11039872

    申请日：2005-01-24

    申请人： Takashi Kawakubo ,  Ryoichi Ohara ,  Kazuhide Abe ,  Hiroshi Yoshida ,  Hiroshi Tsurumi

    发明人： Takashi Kawakubo ,  Ryoichi Ohara ,  Kazuhide Abe ,  Hiroshi Yoshida ,  Hiroshi Tsurumi

    IPC分类号： H03H21/00 ,  H03H9/54 ,  H03H9/64

    CPC分类号： H03J3/08 ,  H03H9/542 ,  H03H9/605 ,  H03H2210/012 ,  H03H2210/015 ,  H03J1/0008

    摘要： A tunable filter has a plurality of variable capacitors and a plurality of inductor elements, each being formed on a common substrate, a filter circuit formed by using at least a portion of the plurality of variable capacitors and a portion of the plurality of inductor elements, a monitor circuit formed by using at least a portion of the plurality of variable capacitors and a portion of the plurality of inductor elements, a detecting circuit which detects a prescribed circuit constant of the monitor circuit, a storage which stores information relating to a reference circuit constant of the monitor circuit, and a capacitance control circuit which controls capacitance of the variable capacitors in the monitor circuit and capacitance of the variable capacitors in the filter circuit, based on a result detected by the detecting circuit and information stored in the storage.

    摘要翻译： 可调谐滤波器具有多个可变电容器和多个电感器元件，每个电感器元件形成在公共基板上，通过使用多个可变电容器的至少一部分和多个电感器元件的一部分形成的滤波器电路， 通过使用多个可变电容器的至少一部分和多个电感器元件的一部分形成的监视电路，检测监视电路的规定电路常数的检测电路，存储与参考电路有关的信息的存储器 基于由检测电路检测的结果和存储在存储器中的信息，控制监视电路中的可变电容器的电容和滤波器电路中的可变电容器的电容的电容控制电路。

    Tunable filter and portable telephone
    4.
    发明申请
    Tunable filter and portable telephone 失效
    可调滤波器和便携式电话

    公开(公告)号：US20050212612A1

    公开(公告)日：2005-09-29

    申请号：US11039872

    申请日：2005-01-24

    申请人： Takashi Kawakubo ,  Ryoichi Ohara ,  Kazuhide Abe ,  Hiroshi Yoshida ,  Hiroshi Tsurumi

    发明人： Takashi Kawakubo ,  Ryoichi Ohara ,  Kazuhide Abe ,  Hiroshi Yoshida ,  Hiroshi Tsurumi

    IPC分类号： H01G7/06 ,  H03B5/00 ,  H03H7/075 ,  H03H7/12 ,  H03H9/00 ,  H03H9/17 ,  H03H9/46 ,  H03H9/54 ,  H03H9/58 ,  H03H9/60 ,  H03H9/64 ,  H03H11/04 ,  H03J1/00 ,  H03J3/08

    CPC分类号： H03J3/08 ,  H03H9/542 ,  H03H9/605 ,  H03H2210/012 ,  H03H2210/015 ,  H03J1/0008

    摘要： A tunable filter has a plurality of variable capacitors and a plurality of inductor elements, each being formed on a common substrate, a filter circuit formed by using at least a portion of the plurality of variable capacitors and a portion of the plurality of inductor elements, a monitor circuit formed by using at least a portion of the plurality of variable capacitors and a portion of the plurality of inductor elements, a detecting circuit which detects a prescribed circuit constant of the monitor circuit, a storage which stores information relating to a reference circuit constant of the monitor circuit, and a capacitance control circuit which controls capacitance of the variable capacitors in the monitor circuit and capacitance of the variable capacitors in the filter circuit, based on a result detected by the detecting circuit and information stored in the storage.

    摘要翻译： 可调谐滤波器具有多个可变电容器和多个电感器元件，每个电感器元件形成在公共基板上，通过使用多个可变电容器的至少一部分和多个电感器元件的一部分形成的滤波器电路， 通过使用多个可变电容器的至少一部分和多个电感器元件的一部分形成的监视电路，检测监视电路的规定电路常数的检测电路，存储与参考电路有关的信息的存储器 基于由检测电路检测的结果和存储在存储器中的信息，控制监视电路中的可变电容器的电容和滤波器电路中的可变电容器的电容的电容控制电路。

    Filter control apparatus and filter system
    5.
    发明申请
    Filter control apparatus and filter system 审中-公开
    过滤器控制装置和过滤系统

    公开(公告)号：US20050280476A1

    公开(公告)日：2005-12-22

    申请号：US11151343

    申请日：2005-06-14

    申请人： Kazuhide Abe ,  Michihiko Nishigaki ,  Toshihiko Nagano ,  Ryoichi Ohara ,  Hiroshi Yoshida ,  Hiroshi Tsurumi ,  Takashi Kawakubo

    发明人： Kazuhide Abe ,  Michihiko Nishigaki ,  Toshihiko Nagano ,  Ryoichi Ohara ,  Hiroshi Yoshida ,  Hiroshi Tsurumi ,  Takashi Kawakubo

    IPC分类号： H03B21/01 ,  H03H7/01 ,  H03L7/00 ,  H03L7/07 ,  H03L7/081 ,  H03L7/099

    CPC分类号： H03H7/0161 ,  H03B21/01 ,  H03L7/07 ,  H03L7/0805 ,  H03L7/0812 ,  H03L7/099 ,  H03L7/0995

    摘要： A filter control apparatus which controls a frequency variable filter capable of changing a transmission band width by controlling a capacitance of at least a portion of a plurality of voltage variable capacitors connected in series and parallel to a resonator has an input unit, and a filter control circuit. The input unit inputs a reference signal with a predetermined reference frequency to the frequency variable filter. The filter control circuit controls a center frequency and the transmission band width of the frequency variable filter by detecting a phase change generated when the reference signal passes through the frequency variable filter and by variably controlling the capacitance of at least a portion of the voltage variable capacitor by using a direct voltage in proportion to the phase change.

    摘要翻译： 控制能够通过控制串联并联到谐振器的多个电压可变电容器的至少一部分的电容来改变传输带宽的滤波器控制装置具有输入单元和滤波器控制 电路。 输入单元将具有预定参考频率的参考信号输入到频率可变滤波器。 滤波器控制电路通过检测当参考信号通过频率可变滤波器时产生的相位变化并且通过可变地控制电压可变电容器的至少一部分的电容来控制频率可变滤波器的中心频率和传输带宽 通过使用与相变成比例的直流电压。

    Thin film piezoelectric actuator
    9.
    发明授权
    Thin film piezoelectric actuator 失效
    薄膜压电致动器

    公开(公告)号：US07675222B2

    公开(公告)日：2010-03-09

    申请号：US11781667

    申请日：2007-07-23

    申请人： Takashi Kawakubo ,  Ryoichi Ohara ,  Tomio Ono ,  Toshihiko Nagano ,  Michihiko Nishigaki ,  Takaaki Yasumoto ,  Kazuhide Abe ,  Kenya Sano

    发明人： Takashi Kawakubo ,  Ryoichi Ohara ,  Tomio Ono ,  Toshihiko Nagano ,  Michihiko Nishigaki ,  Takaaki Yasumoto ,  Kazuhide Abe ,  Kenya Sano

    IPC分类号： H01L41/08

    CPC分类号： H01G7/06 ,  H01H2057/006 ,  H01L41/0933 ,  H01L41/094

    摘要： A thin film piezoelectric actuator comprises a driving part at least one end of which is supported by an anchor portion. The driving part includes: a piezoelectric film, a first lower electrode provided under a first region of the piezoelectric film, a second lower electrode provided under a second region different from the first region of the piezoelectric film, a first upper electrode provided opposite to the first lower electrode on the piezoelectric film, a second upper electrode provided opposite to the second lower electrode on the piezoelectric film, a first connection part that electrically connects the first lower electrode and the second upper electrode via a first via hole formed in the piezoelectric film, and a second connection part that electrically connects the second lower electrode and the first upper electrode via a second via hole formed in the piezoelectric film.

    摘要翻译： 薄膜压电致动器包括驱动部件，其至少一端由锚固部分支撑。 驱动部包括：压电膜，设置在压电膜的第一区域下方的第一下电极，设置在与压电膜的第一区不同的第二区域下方的第二下电极，与第一下电极相对设置的第一上电极 压电膜上的第一下电极，与压电膜上的第二下电极相对设置的第二上电极，经由形成在压电膜中的第一通孔电连接第一下电极和第二上电极的第一连接部 以及第二连接部，其经由形成在所述压电膜中的第二通路孔电连接所述第二下部电极和所述第一上部电极。