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    Electronic device
    11.
    发明授权
    Electronic device 有权

    公开(公告)号：US10333194B2

    公开(公告)日：2019-06-25

    申请号：US15464399

    申请日：2017-03-21

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Katsumi Taniguchi ,  Kuniaki Yosui

    IPC: H01P3/08 ,  H05K1/02 ,  H01P5/02 ,  H01P5/08

    Abstract: An electronic device includes a high-frequency transmission line member and a housing. The high-frequency transmission line member includes a flexible substrate, a signal conductor, and a ground conductor along the signal conductor. The housing is defined by a member separate from the high-frequency transmission line member and located at one principal surface side of the high-frequency transmission line member. The high-frequency transmission line member includes a first portion along the housing to face the housing, and a second portion spaced apart from the housing more than the first portion. The ground conductor is not provided at one principal surface side of the signal conductor in the first portion and is provided at least in the second portion.

    Communication circuit
    13.
    发明授权
    Communication circuit 有权
    通讯电路

    公开(公告)号：US09083389B1

    公开(公告)日：2015-07-14

    申请号：US14659824

    申请日：2015-03-17

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Naoto Ikeda ,  Nobuo Ikemoto ,  Naoki Gouchi ,  Toshiyuki Nakaiso ,  Katsumi Taniguchi

    IPC: H01Q11/12 ,  H04B5/00

    CPC classification number: H04B5/0012 ,  G06K19/0726 ,  H01Q1/2225 ,  H01Q7/00 ,  H04B5/0031 ,  H04B5/0062 ,  H04B5/0081 ,  H04B5/02

    Abstract: In a communication circuit, an RFIC includes an IO terminal and a control IC includes an IO terminal. A variable capacitance element includes control terminals, a capacitance element with a capacitance value that is determined according to a control voltage, and a resistance voltage divider circuit configured to generate the control voltage by dividing a voltage inputted to the control terminals. One of the RFIC and the control IC supplies control data to the variable capacitance element via a signal line. The variable capacitance element, along with an antenna coil, constitutes an antenna circuit of an LC parallel resonance circuit, and sets a resonant frequency of the antenna circuit to be a predetermined frequency.

    Abstract translation: 在通信电路中，RFIC包括IO端子，并且控制IC包括IO端子。 可变电容元件包括控制端子，具有根据控制电压确定的电容值的电容元件，以及电阻分压器电路，被配置为通过分压输入到控制端子的电压来产生控制电压。 RFIC和控制IC之一通过信号线向可变电容元件提供控制数据。 可变电容元件与天线线圈一起构成LC并联谐振电路的天线电路，并将天线电路的谐振频率设定为预定频率。

    Antenna apparatus
    14.
    发明授权
    Antenna apparatus 有权
    天线装置

    公开(公告)号：US09065182B2

    公开(公告)日：2015-06-23

    申请号：US14320761

    申请日：2014-07-01

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Noboru Kato ,  Katsumi Taniguchi ,  Jun Sasaki ,  Naoki Gouchi

    IPC: H01F38/14 ,  H01Q19/02 ,  H01Q1/38 ,  H01Q7/00 ,  H01Q7/04 ,  H04B5/00 ,  H01P11/00 ,  H01Q1/22 ,  H01Q1/36 ,  H01Q7/06 ,  H01Q1/48 ,  H01Q1/52 ,  H01Q19/06 ,  G06K19/077

    CPC classification number: H01Q1/2216 ,  G06K19/07779 ,  H01P11/00 ,  H01P11/001 ,  H01Q1/22 ,  H01Q1/2225 ,  H01Q1/2291 ,  H01Q1/243 ,  H01Q1/36 ,  H01Q1/38 ,  H01Q1/48 ,  H01Q1/52 ,  H01Q7/00 ,  H01Q7/04 ,  H01Q7/06 ,  H01Q19/02 ,  H01Q19/062 ,  H04B5/0081 ,  Y10T29/49016

    Abstract: There is provided an antenna apparatus capable of stably communicating with a communication partner and increasing the maximum possible communication range even when the antenna apparatus is relatively smaller than an antenna in the communication partner and the two antennas are disposed in close proximity on the same axis. A magnetic flux passing through a coil aperture of an antenna coil passes through a conductor aperture of a conductive layer, but the magnetic flux does not pass through the conductive layer. Accordingly, the magnetic flux is diverted to a path in which the conductor aperture of the conductive layer is the inside and the outer edge of the conductive layer is the outside. As a result, the magnetic flux passing through the coil aperture of the antenna coil makes a relatively large loop and links the inside and the outside of a coil conductor in an antenna in a communication partner with the antenna apparatus.

    Abstract translation: 提供了一种能够与通信对方稳定地通信并且即使当天线装置相对小于通信对方中的天线并且两个天线紧密配置在同一轴上时也能够最大化通信范围的天线装置。 通过天线线圈的线圈孔径的磁通通过导电层的导体孔，但磁通不通过导电层。 因此，磁通被转移到导电层的导体孔为内部并且导电层的外边缘为外侧的路径。 结果，穿过天线线圈的线圈孔径的磁通产生相对较大的环路，并且与天线装置的通信伙伴中的天线中的线圈导体的内部和外部连接。

    Variable capacitance element and high-frequency device
    15.
    发明授权
    Variable capacitance element and high-frequency device 有权
    可变电容元件和高频器件

    公开(公告)号：US09047524B2

    公开(公告)日：2015-06-02

    申请号：US14255994

    申请日：2014-04-18

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Nobuo Ikemoto ,  Toshiyuki Nakaiso ,  Katsumi Taniguchi ,  Naoki Gouchi ,  Naoto Ikeda

    IPC: H01Q7/00 ,  H01Q1/22 ,  H01Q1/24 ,  G06K7/10 ,  G06K19/07 ,  G06K19/077 ,  H04B5/02 ,  H04B5/00 ,  H01G7/00

    CPC classification number: G06K7/10336 ,  G06K19/07 ,  G06K19/077 ,  G06K19/07779 ,  H01G7/00 ,  H01Q1/2225 ,  H01Q1/243 ,  H01Q5/10 ,  H01Q7/005 ,  H04B5/0062 ,  H04B5/0081 ,  H04B5/02

    Abstract: A high-frequency device includes an antenna coil, a variable capacitance element, and an RFIC. The variable capacitance element is configured by capacitor units in each of which a ferroelectric film is sandwiched between capacitor electrodes, and a capacitance value changes according to a control voltage applied between the capacitor electrodes. A control voltage application circuit configured by a plurality of resistance elements of different resistance values, and a resistance element of the variable capacitance element unit configured to apply a control voltage to the variable capacitance element are arranged in a layered manner above the capacitor unit. Thus, a variable capacitance element and a high-frequency device that includes a control voltage application circuit eliminating problems such as distortion due to active elements and growing IC size along with complication of circuit architecture, and ensuring reliability on impact due to falling or the like, are provided.

    Abstract translation: 高频器件包括天线线圈，可变电容元件和RFIC。 可变电容元件由电容器单元构成，其中每个电容器单元中的铁电体膜夹在电容器电极之间，并且电容值根据施加在电容器电极之间的控制电压而变化。 由电阻值不同的多个电阻元件构成的控制电压施加电路以及配置成向可变电容元件施加控制电压的可变电容元件单元的电阻元件以电容器单元的上方分层配置。 因此，包括可变电容元件和高频器件，其包括控制电压施加电路，消除由于有源元件引起的失真以及随着电路结构的复杂化而增加的IC尺寸等问题，并且确保由于下降等引起的冲击的可靠性 ，提供。

    ENTRY/EXIT MANAGEMENT SYSTEM AND ENTRY/EXIT MANAGEMENT METHOD
    17.
    发明申请
    ENTRY/EXIT MANAGEMENT SYSTEM AND ENTRY/EXIT MANAGEMENT METHOD 审中-公开

    公开(公告)号：US20190206171A1

    公开(公告)日：2019-07-04

    申请号：US16297922

    申请日：2019-03-11

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Jun Sasaki ,  Katsumi Taniguchi ,  Masaaki Kanao ,  Tomohiro Furumura ,  Ai Miyabayashi

    IPC: G07C9/02 ,  G07C9/00 ,  G06K7/10

    CPC classification number: G07C9/02 ,  G06K7/10366 ,  G07C9/00 ,  G07C9/00182 ,  G07C9/00563

    Abstract: An entry/exit management system includes a reader at an entry gate for reading personal information of a user, a storage recording the read personal information, a database in which personal information for authentication is recorded in advance, and an authenticator for authenticating the recorded personal information by collation with the personal information for authentication recorded in the database. The entry/exit management system has a first operation mode in which the reader reads the personal information of the user to allow the entry gate to permit the entry of the user having the read personal information. In the first operation mode, after permitting the entry of the user, the authenticator authenticates the personal information recorded in the storage and does not give permission for exit of the user until the personal information recorded in the storage is successfully authenticated.

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