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公开(公告)号：US20190143925A1
公开(公告)日：2019-05-16
申请号：US16098669
申请日：2017-05-02
Applicant: SOKEN, INC. , DENSO CORPORATION
Inventor： Yusuke AKAMINE , Mitsuyasu MATSUURA , Mai SAKAMOTO
Abstract: An estimation device includes an information acquisition unit, a detection determination unit, a direction determination unit, and a direction estimation unit. When an object is a first-time detected object, the direction determination unit determines whether a relative direction acquired by the information acquisition unit is a direction toward an own vehicle. When the relative direction acquired by the information acquisition unit is a direction toward the own vehicle, the direction estimation unit estimates that a direction predetermined according to an object position acquired by the information acquisition unit is the movement direction of the object.
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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：US20160069990A1
公开(公告)日：2016-03-10
申请号：US14787735
申请日：2014-04-21
Applicant: Kimitaka SAITOH , DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Taketo HARADA , Mitsuyasu MATSUURA , Keiko AKIYAMA
CPC classification number: G01S7/539 , G01S7/521 , G01S15/08 , G01S15/42 , G01S15/876 , G01S15/931 , G01S2015/932 , G01S2015/938 , G01S2015/939 , G08G1/165
Abstract: An obstacle detection device includes a plurality of ultrasonic sensors and a detection control unit. The detection control unit detects an object by using one of at least two of the ultrasonic sensors as a transmission sensor that transmits an ultrasonic wave and the other of the at least two of the ultrasonic sensors as a reception sensor that receives the ultrasonic wave transmitted by the transmission sensor and reflected. A difference of heights of the one used as the transmission sensor and the other used as the reception sensor attached to a surface of a vehicle body from a ground is a predetermined threshold height that is defined based on twice a height of a bump on the ground as a non-detection object.
Abstract translation: 障碍物检测装置包括多个超声波传感器和检测控制单元。 检测控制单元通过使用超声波传感器中的至少两个中的至少两个来检测物体作为发送超声波的传输传感器，并且将至少两个超声波传感器中的另一个作为接收传感器接收超声波传输的超声波 传输传感器和反射。 用作传动传感器的高度差和作为从地面附着到车身表面的接收传感器的高度差是基于地面上的凸块的高度的两倍定义的预定阈值高度 作为非检测对象。
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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：US20210306590A1
公开(公告)日：2021-09-30
申请号：US17346662
申请日：2021-06-14
Applicant: DENSO CORPORATION
Inventor： Yu MAEDA , Taketo HARADA , Mitsuyasu MATSUURA , Hirohiko YANAGAWA , Muneaki MATSUMOTO
Abstract: An image processing unit identifies the shape of an obstacle that is identified from an area that appears in a peripheral image based on an image captured by a camera. The shape of the obstacle includes at least a tilt of a section of the obstacle in a road-surface direction. The section of the obstacle faces a vehicle. The image processing unit generates a superimposed image in which a mark image that is generated as a pattern that indicates the identified obstacle is superimposed onto a position that corresponds to the obstacle in the peripheral image. At this time, the image processing unit variably changes properties of the mark image based on the tilt of the obstacle identified by an obstacle identifying unit. The image processing unit then displays the generated superimposed image on display apparatus.
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Patent Agency Ranking
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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公开(公告)号：US20200249347A1
公开(公告)日：2020-08-06
申请号：US16854023
申请日：2020-04-21
Applicant: DENSO CORPORATION
Inventor： Yohei SUZUKI , Mitsuyasu MATSUURA , Taketo HARADA , Hirohiko YANAGAWA
Abstract: In an object detection device to be installed to a vehicle and detect an object outside the vehicle, a position calculator sets multiple candidate points representing a candidate position of the object, based on positions of feature points extracted from a first image captured at a first time. The multiple candidate points are set to be denser within a detection range set based on a distance to the object detected by the ultrasonic sensor than outside the detection range. The position calculator estimates positions of the multiple candidate points at a second time which is after the first time, based on the positions of the multiple candidate points and movement information of the vehicle, and calculates the position of the object by comparing the estimated positions of the multiple candidate points at the second time and the positions of the feature points extracted from a second image captured at the second time.
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公开(公告)号：US20200225346A1
公开(公告)日：2020-07-16
申请号：US16829473
申请日：2020-03-25
Applicant: DENSO CORPORATION
Inventor： Yohei SUZUKI , Taketo HARADA , Mitsuyasu MATSUURA , Tetsuya AOYAMA
Abstract: An object detection device comprises a transmission sound pressure adjustment unit adjusting a sound pressure of the search wave so that the sound pressure of the search wave or a reflected wave based on the search wave is within a predetermined transmission target range. The transmission unit transmits, as the search wave, a first search wave with a first frequency changing with time at a first rate and a second search wave with a second frequency changing with time at a second rate that is different from the first rate. The transmission sound pressure adjustment unit is configured to adjust the sound pressure of each of the first and second search waves so that the sound pressure of the corresponding one of the first and second search waves or the reflected wave based on the corresponding one of the first and second search waves is within the transmission target range.
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公开(公告)号：US20200057897A1
公开(公告)日：2020-02-20
申请号：US16662380
申请日：2019-10-24
Applicant: DENSO CORPORATION
Inventor： Mitsuyasu MATSUURA , Taketo HARADA , Yu MAEDA , Hirohiko YANAGAWA
Abstract: A position acquisition unit acquires relative position information between an own vehicle and an obstacle based on a reception wave received by a distance measurement sensor. A shape recognition unit executes shape recognition of the obstacle based on image information acquired by an image capturing unit. A detection processing unit detects the obstacle based on the relative position information acquired by the position acquisition unit and a shape recognition result obtained by the shape recognition unit. The detection processing unit determines whether the height of the obstacle is equal to or greater than a predetermined height or not. The detection processing unit discards the relative position information corresponding to the obstacle in a case where the shape recognition result obtained by the shape recognition unit indicates that the height of the obstacle is less than the predetermined height.
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公开(公告)号：US20190212430A1
公开(公告)日：2019-07-11
申请号：US16315291
申请日：2017-07-07
Applicant: DENSO CORPORATION
Inventor： Yusuke AKAMINE , Mitsuyasu MATSUURA , Yasuyuki MIYAKE
CPC classification number: G01S13/341 , B60R21/00 , G01S7/352 , G01S13/34 , G01S13/93 , G01S13/931 , G01S2013/9353 , G08G1/16
Abstract: A dual-frequency CW processing unit (12) calculates an observation-point orientation of an observation point. An FMCW processing unit (11) calculates at least a power spectrum of a beat signal, which has been generated based on radar waves that have come from the calculated observation-point orientation, in terms of an up-modulation time interval and a down-modulation time interval (termed orientation power spectrum hereinafter). The FMCW processing unit (11) shifts the orientation power spectra of the up- and down-modulation time intervals to positive and negative directions, respectively, by an amount corresponding to a Doppler shift frequency. The FMCW processing unit (11) calculates a differential power spectrum by differentiating the orientation power spectra of the shifted up- and down-modulation time intervals, and detects a peak frequency where intensity is maximum.
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