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公开(公告)号：US20250010815A1
公开(公告)日：2025-01-09
申请号：US18888883
申请日：2024-09-18
Applicant: Denso Corporation
Inventor： Takayuki MATSUMOTO , Nobuyasu OKABE
Abstract: A vehicle control apparatus determines a location of a key device through wireless communication with the key device. The vehicle control apparatus is configured to perform a wireless authentication process of determining whether a communication partner is the key device and a location determination process of determining whether the communication partner is present in a vehicle, and to identify an authentication failure reason that is a reason why the communication partner has failed to be determined as the key device.
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公开(公告)号：US20220013913A1
公开(公告)日：2022-01-13
申请号：US17484207
申请日：2021-09-24
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Masakazu IKEDA , Yuuji KAKUYA , Kenichiro SANJI , Nobuyasu OKABE , Hiroyuki IZUMI
Abstract: 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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Patent Agency Ranking
公开(公告)号：US20220006195A1
公开(公告)日：2022-01-06
申请号：US17479494
申请日：2021-09-20
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Masakazu IKEDA , Yuuji KAKUYA , Kenichiro SANJI , Nobuyasu OKABE
Abstract: An antenna device includes: a ground plate; an opposing conductive plate provided with a power supply point installed at a predetermined distance from the ground plate; and a short-circuit portion provided in a central region of the opposing conductive plate and electrically connecting the opposing conductive plate and the ground plate. A 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; and the ground plate is arranged asymmetrically with respect to the opposing conductive plate.
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公开(公告)号：US20210370876A1
公开(公告)日：2021-12-02
申请号：US17404654
申请日：2021-08-17
Applicant: DENSO CORPORATION
Inventor： Nobuyoshi NAGAI , Nobuyasu OKABE
Abstract: A vehicle control system includes an in-vehicle device, a mobile terminal, and one or more processors. The in-vehicle device is mounted on a vehicle. The in-vehicle device controls a lock mechanism that locks and unlocks a door of the vehicle. The in-vehicle device causes the lock mechanism to unlock the door in response to a predetermined condition being satisfied. The mobile terminal communicates with the in-vehicle device. The one or more processors determine whether the mobile terminal is present inside a vehicle compartment. The one or more processors detect whether the mobile terminal is used. The one or more processors control the vehicle control system not to satisfy the predetermined condition in response to determination that the mobile terminal is present inside the vehicle compartment.
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公开(公告)号：US20250053631A1
公开(公告)日：2025-02-13
申请号：US18933808
申请日：2024-10-31
Applicant: DENSO CORPORATION
Inventor： Nobuyasu OKABE
Abstract: An authentication device includes an authentication unit, an information acquisition unit, a companion identifying unit, a companion information identifying unit, and an authorization unit. The authentication unit authenticates a regular user who is authorized to use a specified component. The information acquisition unit acquires surrounding information around the specified component. The companion identifying unit determines whether the regular user is accompanied by a companion based on successful authentication of the regular user. The companion information identifying unit identifies companion information from the surrounding information. The authorization unit is configured to authorize the companion to use the specified component based on the companion information. The authentication unit further authenticates the companion who has been authorized by the authorization unit.
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公开(公告)号：US20220279335A1
公开(公告)日：2022-09-01
申请号：US17749283
申请日：2022-05-20
Applicant: DENSO CORPORATION
Inventor： Ryozou FUJII , Nobuyasu OKABE
Abstract: A vehicle system includes a portable terminal and an in-vehicle device. The portable terminal is configured to perform short-range wireless communication. The in-vehicle device is configured to locate the portable terminal based on a reception strength. The portable terminal includes a transmission unit configured to change a channel among channels. A reception strength selection unit of the in-vehicle device is configured to select a particular number of reception strengths for consecutive ones of the channels. A terminal locator unit of the in-vehicle device is configured to prioritize a largest reception strength to locate the portable terminal based on the reception strength. An upper limit of the particular number is set to be higher as an interval for transmitting information from the antenna to the in-vehicle device is shorter, and a lower limit of the particular number is set based on a multipath reduction effect.
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公开(公告)号：US20210306083A1
公开(公告)日：2021-09-30
申请号：US17345066
申请日：2021-06-11
Applicant: DENSO CORPORATION
Inventor： Kenichiro SANJI , Nobuyasu OKABE , Nobuyoshi NAGAI
Abstract: A positioning system includes a vehicular exterior communication device and a positioning device. The vehicular exterior communication device has an antenna and a strength detector. The antenna is disposed at a side surface portion of the vehicle that receives a wireless signal transmitted from the portable terminal. The strength detector detects reception strength of the wireless signal received by the antenna. The positioning device determines whether the portable terminal is present at an operating area based on vehicular exterior device strength as the reception strength of the wireless signal from the portable terminal detected by the vehicular exterior communication device. The vehicular exterior communication device is disposed under a door of the vehicle in a posture in which a center of directivity of the antenna faces upward or downward.
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