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公开(公告)号：US20180329044A1
公开(公告)日：2018-11-15
申请号：US15778027
申请日：2016-11-21
Applicant: DENSO CORPORATION
Inventor： Takuya NOMURA , Mitsuyasu MATSUURA , Taketo HARADA
CPC classification number: G01S7/52006 , G01S7/521 , G01S7/524 , G01S7/526 , G01S15/87 , G01S15/931 , G01S2007/52007 , G01S2015/938 , H04R3/00
Abstract: An object detection apparatus includes an object detecting unit detecting an object present around a subject vehicle based on received waves, in a case of receiving reflected waves, from the object, of ultrasonic waves transmitted from an ultrasonic sensor as transmitted waves. The object detection apparatus includes a temperature sensor detecting a temperature of the ultrasonic sensor, and based on a detected value of the temperature of the ultrasonic sensor, corrects at least one of a reception sensitivity for the received waves received by the ultrasonic sensor and a transmission intensity for the transmitted waves from the ultrasonic sensor. The object detection apparatus then detects the object using the corrected received waves.
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公开(公告)号：US20220113391A1
公开(公告)日：2022-04-14
申请号：US17645557
申请日：2021-12-22
Applicant: DENSO CORPORATION
Inventor： Syoya ISHIDA , Takuya NOMURA , Satoru NORO
Abstract: A plurality of ultrasonic sensors are configured such that search ultrasonic waves transmitted from the respective ultrasonic sensors have mutually different characteristics that are mutually distinguishable. A transmission timing setting unit is configured to set a transmission timing of transmitting the search ultrasonic wave for each of the ultrasonic sensors, such that the plurality of ultrasonic sensors transmit the respective search ultrasonic waves at respective transmission timings that are mutually different. The transmission timing setting unit is configured to set a delay time between a first transmission timing, which is a transmission timing of the first ultrasonic sensor, and a second transmission timing, which is a transmission timing of the second ultrasonic sensor, with the delay time being determined based on a positional relationship between the first ultrasonic sensor and the second ultrasonic sensor.
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公开(公告)号：US20220003856A1
公开(公告)日：2022-01-06
申请号：US17477268
申请日：2021-09-16
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Taketo HARADA , Tetsuya AOYAMA , Yu KOYAMA , Takuya NOMURA
Abstract: An ultrasonic sensor (10), that transmits probe waves which are ultrasonic waves and acquires detection waves including reflected waves which have been reflected from surrounding objects, includes a transmitter/receiver (12) that transmits the probe waves and acquires the detection waves, a detection wave processing section (13) that executes processing for passing a predetermined frequency band which includes the frequency of the probe waves, an amplitude measurement section (14) which measures the amplitude of the detection waves, and a judgement section (17) which judges whether there is adherence of foreign matter on the transmitter/receiver, based on a relationship between a time axis and values of the amplitude of the detection waves during a reverberation interval following the termination of transmitting the probe waves.
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公开(公告)号：US20210374434A1
公开(公告)日：2021-12-02
申请号：US17333460
申请日：2021-05-28
Applicant: DENSO CORPORATION
Inventor： Ukyo TANIKAWA , Shunsuke NAKANO , Takuya NOMURA , Yasushi SUEHISA
IPC: G06K9/00
Abstract: An image recognizer is enabled to appropriately recognize a traffic signal applicable to an own vehicle. A traffic signal detector is configured to detect traffic signals based on an image of a front view of the own vehicle captured from the own vehicle. A calculator is configured to calculate a degree by which a front of the traffic signal faces the own vehicle based on the image. The traffic signal identifier is configured to identify a traffic signal applicable to the own vehicle based on the degree.
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公开(公告)号：US20210263149A1
公开(公告)日：2021-08-26
申请号：US17315091
申请日：2021-05-07
Applicant: DENSO CORPORATION
Inventor： Yu KOYAMA , Mitsuyasu MATSUURA , Takuya NOMURA
Abstract: An object detection device includes a drive signal generation unit provided to generate a drive signal for driving a transmitter configured to transmit a search wave to the outside, and a control unit provided to control output of the drive signal from the drive signal generation unit to the transmitter. The drive signal generation unit generates a first drive signal corresponding to a first search wave and a second drive signal corresponding to a second search wave having an encoding scheme that is different from the encoding scheme of the first search wave. The control unit causes the drive signal generation unit to output the first drive signal and the second drive signal to the transmitter at different timings so that one of the first and second search waves is transmitted in a transmission interval between transmissions of the other search wave.
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Patent Agency Ranking
公开(公告)号：US20170294125A1
公开(公告)日：2017-10-12
申请号：US15515565
申请日：2015-10-21
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA , SOKEN, INC.
Inventor： Mitsuyasu MATSUURA , Takuya NOMURA , Hidenori TANAKA , Motonari OHBAYASHI , Hironobu ISHIJIMA
CPC classification number: G08G1/16 , G01S7/524 , G01S15/02 , G01S15/10 , G01S15/87 , G01S15/931 , G05D1/0238 , G05D1/0255 , G08G1/163 , G08G1/165 , G08G1/166
Abstract: An object detection apparatus is arranged to detect the distance to the object and includes: a transceiver repeatedly transmitting a wave as an ultrasonic wave and receives a reflection wave of the transmission wave; a transmission controller controlling the transceiver to transmit the transmission wave; a distance calculator calculating a distance to the object, based on a time interval from a moment when the transceiver transmits the wave to a moment when the reflection wave is received; and a transmission timing controller controlling timing at which the transmission controller controls the transmission wave to be transmitted. Moreover, the transmission timing controller inserts at least one type of temporary waiting time between a transmission/reception period in which the transceiver transmits the transmission wave and receives the reflection wave and a next transmission/reception period, when a predetermined crosstalk identification condition is established based on the distance to the object.
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公开(公告)号：US20210291824A1
公开(公告)日：2021-09-23
申请号：US16330573
申请日：2017-08-28
Applicant: DENSO CORPORATION
Inventor： Satoru NORO , Masakazu TAKEICHI , Takuya NOMURA
IPC: B60W30/095 , B60W30/09 , G08G1/16 , B60R19/48 , G01S7/52
Abstract: An object detection apparatus applied to a vehicle having a sensor unit mounted on a predetermined member provided to the vehicle, the sensor unit being provided with an object detection sensor that detects position information of an object present around the vehicle and a tilt sensor that detects a tilt angle as inclination with respect to a predetermined direction, and performing a process of detecting the object based on the position information of the object detected by the object detection sensor, the object detection apparatus comprising a detachment state determination section that determines a detachment state of the predetermined member based on the tilt angle detected by the tilt sensor.
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公开(公告)号：US20200213687A1
公开(公告)日：2020-07-02
申请号：US16816563
申请日：2020-03-12
Applicant: DENSO CORPORATION
Inventor： Takuya NOMURA
Abstract: A sensor system includes at least one sensor and a control unit. The at least one sensor and the control unit communicate with each other using a time-division multiplexing method. The control unit is capable of being connected to a plurality of sensors that configures the at least one sensor, and transmits a data transmission command to the at least one sensor connected to the control unit at every fixed amount of time. In response to the number of at least one target sensor, among the at least one sensor, for transmitting data collected by the control unit being less than the number of time slots allocated within the fixed amount of time, the at least one sensor transmits data to the control unit using a plurality of time slots.
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公开(公告)号：US20230358884A1
公开(公告)日：2023-11-09
申请号：US18357001
申请日：2023-07-21
Applicant: DENSO CORPORATION
Inventor： Sakiko NISHINO , Yu KOYAMA , Takuya NOMURA
CPC classification number: G01S15/04 , G01S7/524 , G01S7/526 , G01S2015/932
Abstract: An object detection device for detecting an object by transmitting and receiving ultrasonic waves, includes a transmitter that transmits an ultrasonic wave, two or more receivers, each of which receives an ultrasonic wave and outputs an reception signal according to the received ultrasonic wave, a comparator that compares the plurality of reception signals output from the two or more receivers and calculates a degree of similarity between the plurality of reception signals, and a determiner that makes a determination as to whether there is an object to be detected, based on the degree of similarity.
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公开(公告)号：US20200256968A1
公开(公告)日：2020-08-13
申请号：US16865003
申请日：2020-05-01
Applicant: DENSO CORPORATION
Inventor： Yu KOYAMA , Tetsuya AOYAMA , Takuya NOMURA , Satoru NORO
Abstract: An ultrasonic sensor includes: a first electrode that is provided in an ultrasonic microphone including a vibration element having a function of performing conversion between mechanical vibration and an electrical signal; a second electrode that is provided at a position different from the first electrode in an in-plane direction intersecting a directional axis of the ultrasonic microphone; and a detection section that is provided to detect the presence or absence of attached matter attached to the ultrasonic sensor on the basis of a change in capacitance between the first electrode and the second electrode.
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