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    • 3. 发明授权
    • Electric leakage detection apparatus
    • 漏电检测装置
    • US09041413B2
    • 2015-05-26
    • US13398658
    • 2012-02-16
    • Hideaki NaruseSatoru MiyamotoMasaki FujiiKazushi KodairaYoshihiro Ikushima
    • Hideaki NaruseSatoru MiyamotoMasaki FujiiKazushi KodairaYoshihiro Ikushima
    • G01N27/00G01R31/02B60L3/00
    • G01R31/025B60L3/0069
    • An electric leakage detection apparatus may quickly detect an electric leakage. An electric leakage detection apparatus includes a pulse generator that supplies a pulse to a coupling capacitor, a voltage detector that detects a voltage at the coupling capacitor, an electric leakage determination unit that compares the voltage detected by the voltage detector to a first threshold and determines presence or absence of the electric leakage of a DC power supply based on a comparison result. The electric leakage detection apparatus also includes a discharge determination unit that compares the voltage detected by the voltage detector to a second threshold lower than the first threshold and determines whether the detection voltage becomes lower than the second threshold by a discharge of the coupling capacitor. The pulse generator generates a new pulse when the discharge determination unit determines that the detection voltage becomes lower than the second threshold.
    • 泄漏检测装置可以快速检测漏电。 一种泄漏检测装置,包括向耦合电容器提供脉冲的脉冲发生器,检测耦合电容器的电压的电压检测器,将由电压检测器检测的电压与第一阈值进行比较的漏电判定单元, 基于比较结果,存在或不存在直流电源的漏电。 泄漏检测装置还包括放电判定单元,其将由电压检测器检测的电压与低于第一阈值的第二阈值进行比较,并且通过耦合电容器的放电来确定检测电压是否变得低于第二阈值。 当放电确定单元确定检测电压变得低于第二阈值时,脉冲发生器产生新的脉冲。
    • 7. 发明申请
    • COMMUNICATION SYSTEM HAVING TRANSMITTER AND RECEIVER AND SIGNAL SENDING/RECEIVING METHOD
    • 具有发射机和接收机的通信系统和信号发送/接收方法
    • US20090051488A1
    • 2009-02-26
    • US12193891
    • 2008-08-19
    • Tsutomu MurataMasaki Fujii
    • Tsutomu MurataMasaki Fujii
    • B60R25/00
    • B60R25/24
    • A technique for achieving a risk-free keyless entry system for vehicles at low costs is disclosed. The keyless entry system includes a transmitter responsive to an operation of an operation unit for transmitting a signal indicative of to-be-sent information toward an on-board device at a prespecified communication rate. The on-board device is attached to inside of a vehicle, for receiving electrical waves as sent from the transmitter and for outputting a control signal used to drive electric motors of door lock actuators and/or a motor of slide door actuator. By changing the communication rate of the signal being sent from the transmitter, the door lock control signal is made shorter in arrival distance than the slide door control signal.
    • 公开了一种以低成本实现车辆无风险无钥匙进入系统的技术。 无钥匙进入系统包括响应于操作单元的操作的发射机,用于以预先指定的通信速率向车载设备发送指示要发送的信息的信号。 车载设备附接到车辆内部,用于接收从发射机发送的电波,并输出用于驱动门锁致动器和/或滑动门致动器的电动机的电动机的控制信号。 通过改变从发射机发送的信号的通信速率,门锁控制信号的到达距离比滑动门控制信号更短。
    • 8. 发明申请
    • TRANSMITTING APPARATUS AND METHOD
    • 发送装置和方法
    • US20090017781A1
    • 2009-01-15
    • US12170759
    • 2008-07-10
    • Masaki Fujii
    • Masaki Fujii
    • H01Q11/12
    • B60R25/24B60R25/406
    • Communication with less noise is to be performed. A voltage value control signal functioning as an instruction to change the voltage value supplied from a voltage converting section to an LFI is output from a CPU. A driving section for the LFI outputs the control signal at 125 kHz that drives an FET circuit section according to the voltage value supplied from an ECU. The FET circuit section outputs the driving current for an antenna under the control of the driving section. A connecter terminal that connects to a harness is connected to a connecter terminal for GND connection along with the GND terminal of the voltage converting section. A connecter terminal that connects to a harness is connected to a connecter terminal for GND connection along with the GND terminal of the FET circuit section.
    • 要执行噪音较小的通讯。 从CPU输出用作将从电压转换部提供的电压值变更为LFI的指示的电压值控制信号。 LFI的驱动部分根据从ECU提供的电压值输出125 kHz的控制信号,驱动FET电路部分。 FET电路部分在驱动部分的控制下输出天线的驱动电流。 连接到线束的连接器端子连接到用于GND连接的连接器端子以及电压转换部分的GND端子。 连接到线束的连接器端子连接到FET连接的连接器端子以及FET电路部分的GND端子。