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公开(公告)号：US20130196610A1
公开(公告)日：2013-08-01
申请号：US13753020
申请日：2013-01-29
发明人： Kenichiro Sanji , Munenori Matsumoto , Takatoshi Sekizawa , Masahiro Sugiura , Nobuya Watabe , Akira Takaoka , Takashi Saitou
IPC分类号： H04W4/00
CPC分类号： H04W4/80 , G07C9/00309 , G07C2009/00325 , G07C2009/00793 , H04B1/0458 , H04B1/18
摘要： A first communication apparatus and a second communication apparatus are capable of wireless communication with each other. The first communication apparatus has a normal operation mode and a tuning mode that differs from the normal operation mode and allows a variable matching portion to adjust a matching state. When the tuning mode is selected, the first transmission portion transmits an operation mode transition request signal to the second communication apparatus. A first reception portion receives a tuning reference signal transmitted from the second communication apparatus in response to the operation mode transition request signal. A reception signal intensity measurement portion measures a reception signal intensity of the received tuning reference signal. The variable matching portion adjusts a matching state based on the measured reception signal intensity of the tuning reference signal.
摘要翻译： 第一通信装置和第二通信装置能够彼此进行无线通信。 第一通信装置具有与正常操作模式不同的正常操作模式和调谐模式，并且允许可变匹配部分调整匹配状态。 当选择调谐模式时，第一发送部分向第二通信装置发送操作模式转换请求信号。 第一接收部分响应于操作模式转换请求信号接收从第二通信装置发送的调谐参考信号。 接收信号强度测量部分测量所接收的调谐参考信号的接收信号强度。 可变匹配部分基于所测量的调谐参考信号的接收信号强度来调整匹配状态。
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公开(公告)号：US11027701B2
公开(公告)日：2021-06-08
申请号：US16549991
申请日：2019-08-23
申请人： SOKEN, INC. , DENSO CORPORATION
摘要： A location determination system is provided. The location determination system includes a vehicle device mounted in a vehicle, and a mobile terminal provided as a communication terminal to be carried by a user of the vehicle and set to transmit a radio signal including transmission source information at least once within a predetermined period of time. The vehicle device may receive the radio signal transmitted from the mobile terminal via an antenna disposed in the vehicle and detect a reception strength of the received radio signal. The vehicle device may determine, based on the reception strength of the radio signal detected by the reception portion, whether the mobile terminal is present inside a target area set in advance based on a position at which the antenna is disposed.
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公开(公告)号：US11630194B2
公开(公告)日：2023-04-18
申请号：US16843719
申请日：2020-04-08
申请人： DENSO CORPORATION , SOKEN, INC.
发明人： Hidenori Osai , Kenichiro Sanji , Taichi Yamaguchi , Kazunari Nakamura , Munenori Matsumoto , Takashi Shinoda
摘要： A position determination system a determines whether a mobile terminal is present outside a vehicle compartment based on a reception strength of a radio signal transmitted from the mobile terminal through a vehicle interior antenna and a reception strength of a radio signal transmitted from the mobile terminal through a vehicle exterior antenna, and the vehicle exterior antenna is configured to be disposed in a predetermined region in a vicinity of a window of a vehicle in an outer surface portion of a vehicle.
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公开(公告)号：US20150120085A1
公开(公告)日：2015-04-30
申请号：US14403116
申请日：2013-05-23
CPC分类号： B60R25/00 , B60R25/24 , G07C9/00309 , G07C2009/00555 , G07C2009/00793
摘要： In a smart system, an onboard system transmits a request signal. A portable device receives the request signal. An LF demodulation portion demodulates the request signal to acquire request data and returns an answer signal based on acquisition of the request data. The onboard system receives the answer signal and performs smart drive based on reception of the answer signal. The onboard system also transmits a specified counter-RA signal. A switching circuit of the portable device outputs the received counter-RA signal to a modulation portion while bypassing the LF demodulation portion. The modulation portion performs RF modulation using the counter-RA signal to acquire a counter-RA modulation signal and transmits the counter-RA modulation signal. When receiving the counter-RA modulation signal, the onboard system determines whether to allow or disallow the smart drive based on delay time of timing to receive the counter-RA modulation signal with reference to timing to transmit the counter-RA signal. This enables to suppress variations in the transmission/reception delay time inherent in the smart system.
摘要翻译： 在智能系统中，车载系统发送请求信号。 便携式设备接收请求信号。 LF解调部分对请求信号进行解调以获取请求数据，并且基于获取请求数据返回应答信号。 车载系统接收应答信号，并根据应答信号的接收进行智能驱动。 车载系统还发送指定的反RA信号。 便携式设备的切换电路在旁路LF解调部分的同时将接收到的反RA信号输出到调制部分。 调制部使用反RA信号进行RF调制，获取反RA调制信号，发送反RA调制信号。 当接收到反RA调制信号时，车载系统参照定时发送反RA信号，基于定时的延迟时间来接收反RA调制信号来确定是允许还是不允许智能驱动器。 这能够抑制智能系统固有的发送/接收延迟时间的变化。
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公开(公告)号：US12009609B2
公开(公告)日：2024-06-11
申请号：US17484207
申请日：2021-09-24
申请人： DENSO CORPORATION , SOKEN, INC.
CPC分类号： H01Q9/0421 , H01Q1/42 , H01Q1/48 , H01Q1/526
摘要： An antenna device includes: a ground plate made of a conductor with a flat plate shape; an opposing conductive plate made of another conductor with a flat plate shape, arranged to space apart from the ground plate by a predetermined distance, and having a power supply point electrically connected to a power supply line; a short-circuit portion electrically connecting the opposing conductive plate and the ground plate; and a radio wave shield body for shielding a propagation of an electric field, which is arranged on an upper side of the opposing conductive plate and is made of a conductor or a dielectric material. Parallel resonance at a predetermined target frequency is generated by an inductance provided in the short-circuit portion and a capacitance between the ground plate and the opposing conductive plate.
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公开(公告)号：US09637086B2
公开(公告)日：2017-05-02
申请号：US14403116
申请日：2013-05-23
CPC分类号： B60R25/00 , B60R25/24 , G07C9/00309 , G07C2009/00555 , G07C2009/00793
摘要： In a smart system, an onboard system transmits a request signal. A portable device receives the request signal. An LF demodulation portion demodulates the request signal to acquire request data and returns an answer signal based on acquisition of the request data. The onboard system receives the answer signal and performs smart drive based on reception of the answer signal. The onboard system also transmits a specified counter-RA signal. A switching circuit of the portable device outputs the received counter-RA signal to a modulation portion while bypassing the LF demodulation portion. The modulation portion performs RF modulation using the counter-RA signal to acquire a counter-RA modulation signal and transmits the counter-RA modulation signal. When receiving the counter-RA modulation signal, the onboard system determines whether to allow or disallow the smart drive based on delay time of timing to receive the counter-RA modulation signal with reference to timing to transmit the counter-RA signal. This enables to suppress variations in the transmission/reception delay time inherent in the smart system.
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公开(公告)号：US10157542B2
公开(公告)日：2018-12-18
申请号：US15556526
申请日：2016-03-10
申请人： DENSO CORPORATION
IPC分类号： B60R16/02 , G08G1/127 , B60R25/24 , H04B17/318 , G01S3/16 , G06Q50/30 , G08G1/005 , G07C5/00 , G07C9/00 , H04W4/02 , G06F21/35
摘要： A user identification system is provided. In the user identification system, an in-vehicle apparatus specifies a position of a vehicular portable device with reference to a vehicle and determines whether the vehicular portable device exists in a predetermined identification area. Based on determining that the vehicular portable device exists in the identification area, the in-vehicle apparatus transmits an instruction signal instructing the vehicular portable device to specify a driver terminal. Based on reception signal strength detected during a time period determined by a time point of receipt of the instruction signal, the vehicular portable device determines the driver terminal.
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公开(公告)号：US20150243156A1
公开(公告)日：2015-08-27
申请号：US14431330
申请日：2013-08-01
申请人： DENSO CORPORATION
发明人： Tetsuo Itoh , Kenichiro Sanji
IPC分类号： G08B21/18
CPC分类号： G08B21/182 , H04W4/00 , H04W84/005
摘要： A vehicle communication device includes: a communication line establishment device that establishes a communication line with a mobile communication terminal; a manipulation state information transmission device that transmits manipulation state information indicating a manipulation state of a vehicular accessory to the mobile communication terminal; an output timing specifying information generation device that generates output timing specifying information for specifying separation of the mobile communication terminal from the vehicle as an output timing for the mobile communication terminal to output the manipulation state information; and an output timing specifying information transmission device that transmits the output timing specifying information to the mobile communication terminal.
摘要翻译： 车辆通信装置包括：与移动通信终端建立通信线路的通信线路建立装置; 操作状态信息发送装置，其向所述移动通信终端发送表示车辆附件的操作状态的操作状态信息; 输出定时指定信息生成装置，其生成用于指定移动通信终端与车辆的分离的输出定时指定信息作为移动通信终端的输出定时，以输出操作状态信息; 以及将输出定时指定信息发送到移动通信终端的输出定时指定信息发送装置。
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公开(公告)号：US11320513B2
公开(公告)日：2022-05-03
申请号：US17168576
申请日：2021-02-05
申请人： DENSO CORPORATION
摘要： In a portable device position estimation system, a vehicle-mounted system includes a transceiver and intercept devices. The vehicle-mounted system determines a first propagation time being a propagation time of a wireless signal from the transceiver to a portable device, based on a round trip time being a time between the transceiver transmitting a response request signal and the transceiver receiving a response signal from the portable device. The vehicle-mounted system determines a second propagation time being a propagation time of a wireless signal from the portable device to the intercept device based on the round trip time and a signal reception interval being a time between the intercept device receiving the response request signal and the intercept device receiving the response signal.
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公开(公告)号：US11467028B2
公开(公告)日：2022-10-11
申请号：US16910778
申请日：2020-06-24
申请人： DENSO CORPORATION
摘要： A road surface state determination device includes a tire-side device and a vehicle-body-side system. The tire-side device is attached to each of a plurality of tires included in a vehicle. The vehicle-body-side system is included in a body of the vehicle. The tire-side device may output a detection signal corresponding to a magnitude of vibration applied to the tire. The tire-side device may extract data items of a road surface state indicative of the vibration of the tire during one rotation of the tire from the detection signal. The tire-side device may generate road surface data. The tire-side device may transmit the road surface data. The vehicle-body-side system may receive the road surface data. The vehicle-body-side system may determine the road surface state based on the road surface data.
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