公开(公告)号：US20240329247A1

公开(公告)日：2024-10-03

申请号：US18744333

申请日：2024-06-14

Applicant: DENSO CORPORATION

Inventor： Yuichi TOYOTA ,  Taro BEPPU ,  Chihiro MORIGUCHI ,  Naoki YOSHIMOTO ,  Hiroyuki MATSUBARA ,  Tatsuya YAMASHITA ,  Tadashi ICHIKAWA

IPC: G01S17/42 ,  G01S7/4911

CPC classification number: G01S17/42 ,  G01S7/4911

Abstract: A laser radar device includes a transmission unit, a scanning unit, a distance calculation section, and a movement control unit. The transmission unit transmits laser light that has been subjected to frequency modulation. The scanning unit performs scanning with the laser light. For each of a plurality of partial regions obtained by dividing a laser light scanning region preset as a two-dimensional region which the scanning unit scans with the laser light, the distance calculation section receives the laser light that has been reflected by an object, and calculates a distance to the object in the partial region. The movement control unit controls movement of the laser light so that the laser light moves in the partial region, with Δθ>(1.22*λ/d) being met.

公开(公告)号：US20210373156A1

公开(公告)日：2021-12-02

申请号：US17401014

申请日：2021-08-12

Applicant: DENSO CORPORATION

Inventor： Teiyu KIMURA ,  Noriyuki OZAKI ,  Takehiro HATA ,  Mineki SOGA ,  Hiroyuki MATSUBARA ,  Isamu TAKAI

IPC: G01S17/08 ,  G01S17/931 ,  G01S7/4861 ,  G01S7/484

Abstract: An optical distance measuring apparatus comprises a laser diode emitting a light pulse, light receiver including a photon-counting light receiver, distance measurement unit including a signal discriminator and propagation estimator, and threshold determiner. The signal discriminator discriminates the signal component, exceeding a threshold, of the signal as a reflected signal resulting from reflection of the light pulse at a measurement object. The propagation estimator estimates a round-trip propagation time of the light pulse to the measurement object using the signal. The threshold determiner sets a boundary level as the threshold, corresponding to a reference level obtained from the signal when the signal discriminator determines the reflected signal, using the relationship between the reference and the boundary level. The reference level is obtained from the average value of a noise probability distribution in the signal. The boundary level represents a predetermined cumulative probability in the noise probability distribution.

公开(公告)号：US20210088661A1

公开(公告)日：2021-03-25

申请号：US16952616

申请日：2020-11-19

Applicant: DENSO CORPORATION

Inventor： Takehiro HATA ,  Kenta AZUMA ,  Hiroyuki MATSUBARA ,  Isamu TAKAI

IPC: G01S17/14 ,  G01S7/481 ,  G01S7/4863

Abstract: A photodetector and an optical ranging apparatus provided with the photodetector are disclosed. The photodetector includes a pulse output section that changes an output from a light-receiving element to a rectangular pulse having a predetermined pulse width and outputs the rectangular pulse. Further, the photodetector also includes a pulse conversion circuit that converts the rectangular pulse to a rectangular pulse having a pulse width different from the predetermined pulse, based on the rise and fall of the rectangular pulse.

公开(公告)号：US20200044098A1

公开(公告)日：2020-02-06

申请号：US16583674

申请日：2019-09-26

Applicant: DENSO CORPORATION

Inventor： Kenta AZUMA ,  Teiyu KIMURA ,  Noriyuki OZAKI ,  Shinji KASHIWADA ,  Takehiro HATA ,  Isamu TAKAI ,  Hiroyuki MATSUBARA

IPC: H01L31/02 ,  H03F3/08 ,  G01S7/486 ,  H01L31/10

Abstract: A light detector is provided to include a detection module, and a monitoring SPAD. The detection module includes an SPAD that is an avalanche photodiode operable in Geiger mode; the detection module is configured to perform light detection by applying, to the SPAD, a reverse bias voltage in a reverse direction. The monitoring SPAD has characteristics identical to characteristics of the SPAD in the detection module. The reverse bias voltage is generated to be applied to the SPAD in the detection module based on (i) a reference breakdown voltage set from a breakdown voltage generated across the monitoring SPAD in Geiger mode and (ii) a predetermined excess voltage.

公开(公告)号：US20200018831A1

公开(公告)日：2020-01-16

申请号：US16582290

申请日：2019-09-25

Applicant: DENSO CORPORATION

Inventor： Kenta AZUMA ,  Noriyuki OZAKI ,  Shinji KASHIWADA ,  Teiyu KIMURA ,  Isamu TAKAI ,  Hiroyuki MATSUBARA

IPC: G01S7/486 ,  H01L31/107

Abstract: A light detector is provided to include a light receiving array having a plurality of light receivers respectively outputting pulse signals upon incidence of photons. A delay setting value is set which is used to adjust a time interval from when the pulse signals are output from the light receiving array to when a response number, which is a specified number of the light receivers outputting the pulse signals, is acquired.

公开(公告)号：US20130315788A1

公开(公告)日：2013-11-28

申请号：US13897764

申请日：2013-05-20

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiromasa SUZUKI ,  Michiharu NAKANO ,  Masaru KAKINOHANA ,  Hiroyuki MATSUBARA ,  Masakazu MURATA ,  Naohiro HAYASHI

IPC: B01D53/94

CPC classification number: B01D53/94 ,  B01D53/9477 ,  B01D2255/904 ,  B01D2255/9202

Abstract: A catalytic converter has a carrier with a cell structure, and a precious metal catalyst carried on the carrier. The carrier includes a first carrier and a second carrier. The second carrier is provided downstream of the first carrier in a gas flow direction of gas that flows into the catalytic converter. The first carrier has a first peripheral region and a first center region that has a lower cell density than the first peripheral region. The second carrier has a second center region and a second peripheral region that has a lower cell density than the second center region.

Abstract translation: 催化转化器具有带有电池结构的载体和载体上载有的贵金属催化剂。 载体包括第一载体和第二载体。 第二载体在流入催化转化器的气体的气流方向上设置在第一载体的下游。 第一载体具有第一周边区域和具有比第一周边区域更低的单元密度的第一中心区域。 第二载体具有比第二中心区域小的单元密度的第二中心区域和第二周边区域。

公开(公告)号：US20200044109A1

公开(公告)日：2020-02-06

申请号：US16598295

申请日：2019-10-10

Applicant: DENSO CORPORATION ,  KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

Inventor： Kenta AZUMA ,  Noriyuki OZAKI ,  Shinji KASHIWADA ,  Teiyu KIMURA ,  Isamu TAKAI ,  Hiroyuki MATSUBARA ,  Mitsuhiko OHTA ,  Shigeyoshi HIRATSUKA

IPC: H01L31/107 ,  H01L31/02 ,  H01L27/144

Abstract: A photodetector includes: a photoreceptor provided with a SPAD that is configured to respond to incidence of a photon, and as the response of the SPAD, configured to output a pulse signal; and a pulse rate control circuit configured to control sensitivity of the photoreceptor to have a pulse rate as the number of pulse signals outputted per unit time from the photoreceptor to be a set value set in advance, (i) in a set range including the set value, (ii) in a set range of the set value or more, or (iii) in a set range of the set value or less.

公开(公告)号：US20150125354A1

公开(公告)日：2015-05-07

申请号：US14524343

申请日：2014-10-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  DENSO CORPORATION

Inventor： Yuki AOKI ,  Hiromasa SUZUKI ,  Hiroyuki MATSUBARA ,  Naohiro HAYASHI

IPC: B01D53/94

CPC classification number: B01J35/0006 ,  B01D53/9454 ,  B01D53/9477 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/407 ,  B01J23/63 ,  B01J35/04 ,  B01J35/10 ,  F01N3/28 ,  F01N3/2803 ,  F01N3/2828 ,  F01N13/0097 ,  F01N2330/48 ,  Y02T10/22

Abstract: A catalytic converter including: a cell structured first substrate; and a cell structured second substrate provided at a downstream side of the first substrate. The first substrate has a uniform cell density. The second substrate includes a center area with a first cell density and a surrounding area with a second cell density that is lower than the first cell density. The first substrate and the second substrate are mounted in tandem.

Abstract translation: 一种催化转化器，包括：单元结构的第一基板; 以及设置在第一基板的下游侧的电池结构化的第二基板。 第一衬底具有均匀的电池密度。 第二基板包括具有第一单元密度的中心区域和具有低于第一单元密度的第二单元密度的周围区域。 第一基板和第二基板串联安装。