公开(公告)号：US09653514B2

公开(公告)日：2017-05-16

申请号：US14363965

申请日：2013-02-06

Applicant: DENSO CORPORATION

Inventor： Yoshihide Tachino ,  Takahisa Yamashiro ,  Yukiaki Yogo

IPC: H01L27/146 ,  H01L27/148 ,  H04N5/372

CPC classification number: H01L27/14806 ,  H01L27/14614 ,  H01L27/14623 ,  H01L27/14689 ,  H04N5/37213

Abstract: A solid-state imaging device includes: multiple pixels. Each pixel is arranged at a surface layer portion of a semiconductor substrate, and includes: a photoelectric conversion portion that converts light incident into an electric charge; a charge holding portion that stores the electric charge, and is arranged in the semiconductor substrate; a multiplication gate electrode that is capacitively coupled with the charge holding portion, and is arranged on the semiconductor substrate via an insulation film; and a charge barrier portion that is arranged between the charge holding portion and the insulation film, and has a higher impurity concentration than the semiconductor substrate.

公开(公告)号：US11933896B2

公开(公告)日：2024-03-19

申请号：US17061239

申请日：2020-10-01

Applicant: DENSO CORPORATION

Inventor： Yoshihide Tachino ,  Isamu Takai

IPC: G01S17/10 ,  G01S7/4865 ,  G01S17/931

CPC classification number: G01S17/10 ,  G01S7/4865 ,  G01S17/931

Abstract: In an optical distance measuring apparatus, a light source irradiates a target object with a light pulse having a first pulse width. A light receiver outputs a pulse signal that represents reflection light from the target object being incident on the light receiver, and has a second pulse width that is larger than or equal to the first pulse width. A histogram generator records, every predetermined period, a frequency representing the number of outputted pulse signals to thereby generate a histogram. A peak detector detects, from the histogram, an edge point of a peak figure included in the histogram. A distance calculator subtracts, from a time indicative of the edge point of the peak figure, a time length of the second pulse width to thereby calculate a target time, and calculates a distance to the target object as a function of the calculated target time.

公开(公告)号：US11802793B2

公开(公告)日：2023-10-31

申请号：US16952611

申请日：2020-11-19

Applicant: DENSO CORPORATION

Inventor： Yoshihide Tachino ,  Isamu Takai

IPC: G01J1/44

CPC classification number: G01J1/44 ,  G01J2001/442 ,  G01J2001/4466

Abstract: An optical detector includes: a light-receiving element that is operated in a Geiger mode by application of a service voltage higher than a breakdown voltage and outputs a pulse signal in accordance with reception of light; a voltage setting unit that is capable of selectively applying any one of the service voltage and a test voltage lower than the breakdown voltage to the light-receiving element; and an abnormality determination unit that performs an abnormality determination process of determining that the light-receiving element is abnormal when the number of pulse signals output from the light-receiving element operated under the test voltage is equal to or greater than a predetermined threshold, and determining that the light-receiving element is normal when the number of pulse signals is smaller than the threshold.

公开(公告)号：US20140299747A1

公开(公告)日：2014-10-09

申请号：US14363965

申请日：2013-02-06

Applicant: DENSO CORPORATION

Inventor： Yoshihide Tachino ,  Takahisa Yamashiro ,  Yukiaki Yogo

IPC: H01L27/148 ,  H04N5/372

CPC classification number: H01L27/14806 ,  H01L27/14614 ,  H01L27/14623 ,  H01L27/14689 ,  H04N5/37213

Abstract: A solid-state imaging device includes: multiple pixels. Each pixel is arranged at a surface layer portion of a semiconductor substrate, and includes: a photoelectric conversion portion that converts light incident into an electric charge; a charge holding portion that stores the electric charge, and is arranged in the semiconductor substrate; a multiplication gate electrode that is capacitively coupled with the charge holding portion, and is arranged on the semiconductor substrate via an insulation film; and a charge barrier portion that is arranged between the charge holding portion and the insulation film, and has a higher impurity concentration than the semiconductor substrate.

Abstract translation: 固态成像装置包括：多个像素。 每个像素布置在半导体衬底的表层部分，并且包括：光电转换部分，其将入射到电荷中的光转换; 电荷保持部，其存储电荷，并配置在所述半导体基板中; 与电荷保持部电容耦合的乘法栅电极，经由绝缘膜配置在半导体基板上; 以及设置在电荷保持部和绝缘膜之间并且具有比半导体衬底更高的杂质浓度的电荷势垒部。

公开(公告)号：US12270945B2

公开(公告)日：2025-04-08

申请号：US17344417

申请日：2021-06-10

Applicant: DENSO CORPORATION

Inventor： Teiyu Kimura ,  Kenichi Yanai ,  Shinji Kashiwada ,  Yoshihide Tachino

IPC: G01S7/481 ,  G01S7/484

Abstract: An optical ranging device includes a light emitting section provided with a semiconductor laser element having a light emitting region whose length in a first direction is more than that in a second direction intersecting the first direction. The device measures the distance to an object based on the time from light emission from the light emitting section to reception of the light by a light receiving section. A plurality of light emitting regions may be provided in the light emitting section such that they are separated in the second direction and abut or partially overlap each other in the first direction so that the light emitting regions are continuous in the first direction.