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公开(公告)号：US09919680B2
公开(公告)日：2018-03-20
申请号：US15442328
申请日：2017-02-24
发明人： Akira Miyazawa
IPC分类号： G06F21/00 , B60R25/24 , H04B17/318 , G07C9/00
CPC分类号： B60R25/24 , G07C9/00309 , G07C2009/00325 , H04B17/318
摘要： A vehicle-mounted device includes a control unit that generates a request signal, a transmission unit that sequentially transmits a request signal generated by the control unit from a plurality of respective transmission antennas, a reception unit that receives a response signal to the request signal, and a storage unit that stores a history of information included in a response signal received by the reception unit, and, in a case where the response signal is newly received by the reception unit, the control unit determines whether or not a vehicle is caused to perform a predetermined operation on the basis of the information included in the response signal and the history of the information included in the response signal stored in the storage unit.
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公开(公告)号：US09849860B2
公开(公告)日：2017-12-26
申请号：US15406464
申请日：2017-01-13
发明人： Akira Miyazawa
CPC分类号： B60R25/24 , E05B49/00 , E05B81/54 , G07C9/00309 , G07C2009/00555 , H04B1/38 , H04B1/40 , H04B1/59
摘要： A vehicle-side device includes a vehicle-side control unit that controls transmission of a request signal and performs predetermined control when authentication is successful on the basis of an answer signal, a portable device includes a portable-device control unit that detects reception intensity information of the request signal transmitted from the vehicle-side device and transmits an answer signal based on the reception intensity, the vehicle-side control unit controls a vehicle-side transmission unit so that the vehicle-side transmission unit transmits the request signal including the determination signal having an intensity level different for each section, and the vehicle-side control unit or the portable-device control unit determines whether or not the request signal is a true signal on the basis of a fluctuation in the reception intensity in each section of the determination signal received by the portable device.
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公开(公告)号：US09809197B2
公开(公告)日：2017-11-07
申请号：US15192707
申请日：2016-06-24
发明人： Akira Miyazawa , Katsuhiro Seino
CPC分类号： B60R25/245 , G07C9/00309 , G07C2009/00388 , G07C2009/00555 , G07C2209/63 , G08C17/02 , H04Q9/00
摘要： A moving device receives a 100% duty measurement signal transmitted from an in-vehicle device. The receive strength of the received measurement signal is divided into unit time, and the average value of the receive strength for each unit time is determined The maximum value and the minimum value of the average value are determined, and the ratio between the maximum value and the minimum value is transmitted to the in-vehicle device as signal strength fluctuation information. The in-vehicle device determines that a communication state is abnormal if it is determined that the fluctuation ratio exceeds a predetermined threshold.
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公开(公告)号：US20150077089A1
公开(公告)日：2015-03-19
申请号：US14485229
申请日：2014-09-12
发明人： Akira Miyazawa
CPC分类号： G01R19/16542 , B60L11/1851
摘要： A voltage detection device that detects a decrease in an output voltage of a power supply device, includes a first voltage-dividing circuit that divides the output voltage of the power supply device, a first constant-voltage circuit that converts the output voltage of the power supply device into a predetermined voltage, a second constant-voltage circuit that converts the output voltage of the power supply device into a predetermined voltage lower than an output voltage of the first constant-voltage circuit, a comparator that receives output voltages of the first voltage-dividing circuit and the second constant-voltage circuit, and a detection circuit that detects the decrease in the output voltage of the power supply device. The detection circuit detects a decrease in the output voltage in a higher-voltage region, and detects a decrease in the output voltage in a lower-voltage region.
摘要翻译： 检测电源装置的输出电压降低的电压检测装置包括：分压电源装置的输出电压的第一分压电路;转换电源的输出电压的第一恒压电路; 将电源装置设置为预定电压;第二恒压电路，其将所述供电装置的输出电压转换为比所述第一恒压电路的输出电压低的预定电压;比较器，其接收所述第一电压的输出电压 分路电路和第二恒压电路;以及检测电路，其检测供电装置的输出电压的降低。 检测电路检测高电压区域的输出电压的下降，并且检测低电压区域中的输出电压的降低。
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公开(公告)号：US09600948B2
公开(公告)日：2017-03-21
申请号：US14997088
申请日：2016-01-15
发明人： Akira Miyazawa
CPC分类号： G07C9/00309 , G07C9/00126 , G07C2009/00555 , G07C2009/00769 , G07C2009/00793 , G07C2209/06 , G07C2209/61 , G07C2209/63
摘要： A keyless entry apparatus includes: a vehicle-side device provided in a vehicle, the device including a vehicle-side transmitter that transmits a request signal and a vehicle-side receiver that receives an answer signal; and a mobile device including a mobile device receiver that receives the request signal and a mobile device transmitter that transmits the answer signal in accordance with the request signal. The vehicle-side device includes at least one modulator that modulates the request signal, the mobile device includes at least one demodulator that demodulates the request signal in accordance with the corresponding at least one modulator, and the request signal includes a signal modulated by the at least one modulator. Switching between modulation methods for the request signal is performed at at least one timing.
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公开(公告)号：US20150065051A1
公开(公告)日：2015-03-05
申请号：US14473196
申请日：2014-08-29
发明人： Akira Miyazawa
摘要： A two-way communication system includes an in-vehicle unit and a plurality of portable units. The in-vehicle unit includes a plurality of in-vehicle communication units, and an in-vehicle control unit. The in-vehicle unit or the portable units each include a received electric field strength detection unit that detects received electric field strength, and a received electric field strength determination unit that performs determination, based on the received electric field strength. In a case where the received electric field strength is less than a predetermined value, the plural in-vehicle communication units and one of the portable units are communication-connected to each other, and in a case where the received electric field strength is greater than or equal to the predetermined value, the plural in-vehicle communication units and the plural portable units are communication-connected to each other on a one-to-one basis.
摘要翻译： 双向通信系统包括车载单元和多个便携式单元。 车载单元包括多个车载通信单元和车载控制单元。 车载单元或便携式单元各自包括检测接收电场强度的接收电场强度检测单元和接收电场强度确定单元，其基于接收到的电场强度进行确定。 在接收电场强度小于预定值的情况下，多个车载通信单元和其中一个便携式单元彼此连接，并且在接收电场强度大于 或等于预定值，多个车载通信单元和多个便携式单元在一对一的基础上彼此通信连接。
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公开(公告)号：US10124763B2
公开(公告)日：2018-11-13
申请号：US15260796
申请日：2016-09-09
发明人： Akira Miyazawa
摘要： A vehicle-side device that is provided on the vehicle side and transmits a signal at a first frequency, and a portable device that is able to be carried by a user and transmits a signal at a second frequency are included. The portable device transmits a signal of data based on a reception intensity of a measurement signal transmitted from the vehicle-side device, and the vehicle-side device performs predetermined control on the basis of the data based on the reception intensity of the measurement signal transmitted from the portable device. The vehicle-side device transmits a start-up signal to the portable device, the portable device transmits a request signal or a signaling signal to the vehicle-side device at predetermined time intervals when receiving the start-up signal, and the vehicle-side device transmits the measurement signal to the portable device each time the vehicle-side device receives the request signal or the signaling signal.
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公开(公告)号：US09260079B2
公开(公告)日：2016-02-16
申请号：US14512985
申请日：2014-10-13
发明人： Akira Miyazawa
CPC分类号： B60R25/24 , G07C9/00309
摘要： A keyless entry system includes an on-vehicle unit and a mobile device, and controls on-vehicle equipment using a wakeup signal and a command signal. The on-vehicle unit radio-transmits a first transmission signal including the wakeup signal and a second transmission signal relating to the detection of an interference wave to the first transmission signal to the mobile device using radio signals having different frequencies. When the first transmission signal has been normally received, the mobile device radio-transmits a third transmission signal including the command signal to the on-vehicle unit and receives a second transmission signal. When the first transmission signal could not be normally received, the mobile device performs the detection of the interference wave to the first transmission signal and radio-transmits a fourth transmission signal for requesting the retransmission of the first transmission signal to the on-vehicle unit.
摘要翻译： 无钥匙进入系统包括车载单元和移动设备，并且使用唤醒信号和命令信号来控制车载设备。 车载单元使用具有不同频率的无线电信号，将包含唤醒信号的第一发送信号和与干扰波的检测有关的第二发送信号发送到移动设备。 当正常接收到第一发送信号时，移动装置将包含指令信号的第三发送信号无线发送到车载单元，并接收第二发送信号。 当无法正常接收到第一发送信号时，移动装置对第一发送信号进行干扰波的检测，并将第一发送信号的再发送的第四发送信号无线发送到车载单元。
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公开(公告)号：US09417271B2
公开(公告)日：2016-08-16
申请号：US14485229
申请日：2014-09-12
发明人： Akira Miyazawa
IPC分类号： G01R31/40 , G01R19/00 , G01R19/165 , B60L11/18
CPC分类号： G01R19/16542 , B60L11/1851
摘要： A voltage detection device that detects a decrease in an output voltage of a power supply device, includes a first voltage-dividing circuit that divides the output voltage of the power supply device, a first constant-voltage circuit that converts the output voltage of the power supply device into a predetermined voltage, a second constant-voltage circuit that converts the output voltage of the power supply device into a predetermined voltage lower than an output voltage of the first constant-voltage circuit, a comparator that receives output voltages of the first voltage-dividing circuit and the second constant-voltage circuit, and a detection circuit that detects the decrease in the output voltage of the power supply device. The detection circuit detects a decrease in the output voltage in a higher-voltage region, and detects a decrease in the output voltage in a lower-voltage region.
摘要翻译： 检测电源装置的输出电压降低的电压检测装置包括：分压电源装置的输出电压的第一分压电路;转换电源的输出电压的第一恒压电路; 将电源装置设置为预定电压;第二恒压电路，其将所述供电装置的输出电压转换为比所述第一恒压电路的输出电压低的预定电压;比较器，其接收所述第一电压的输出电压 分路电路和第二恒压电路;以及检测电路，其检测供电装置的输出电压的降低。 检测电路检测高电压区域的输出电压的下降，并且检测低电压区域中的输出电压的降低。
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公开(公告)号：US09384606B2
公开(公告)日：2016-07-05
申请号：US14105969
申请日：2013-12-13
发明人： Akira Miyazawa
CPC分类号： G07C9/00111 , G07C9/00309 , G07C2009/0038 , G07C2009/00388 , G07C2009/00587 , G07C2009/00793
摘要： A passive keyless system includes an in-vehicle control unit, an in-vehicle transmitter wirelessly sending a request signal, a portable device that is activated by a battery, has a standby function of receiving a request signal, and sends an ID signal when the request signal is received, and an in-vehicle receiver receiving the ID signal. The in-vehicle control unit allows various operations of the vehicle when an authentication of the ID signal received by the in-vehicle receiver is established. When a remaining amount value of the battery is less than a reference value, the portable device can stop the standby function, can restore the standby function according to an operation using the portable device, and can stop the standby function again after the standby function is restored.
摘要翻译： 无源无钥匙系统包括车载控制单元，无线发送请求信号的车载发射机，由电池启动的便携式设备，具有接收请求信号的待机功能，并且当 接收到ID信号的车载接收器。 当车载接收机接收的ID信号的认证建立时，车载控制单元允许车辆的各种操作。 当电池的剩余电量值小于参考值时，便携式设备可以停止待机功能，可以根据使用便携式设备的操作恢复待机功能，并且可以在待机功能为止后再次停止待机功能 恢复。
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