公开(公告)号：US07834305B2

公开(公告)日：2010-11-16

申请号：US10599615

申请日：2005-07-28

申请人： Kenichi Hagio ,  Motoo Ikari ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

发明人： Kenichi Hagio ,  Motoo Ikari ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

IPC分类号： G01S17/36 ,  H01J40/14

CPC分类号： G01S17/36 ,  G01S17/88 ,  G01S17/89

摘要： An image processing device for generating both of a distance image and a gray image from an electrical output of a light receiving element on the precondition that a light intensity-modulated at a modulation frequency is irradiated into a target space. This device has an image generator for generating the distance image having pixel values, each of which provides a distance value between an object in the target space and the device, in accordance with a phase difference between the irradiated light and the received light, and the gray image having pixel values, each of which provides a gray value of the object, in accordance with an intensity of the received light. By use of an output of the image generator, an outline of the object can be extracted.

摘要翻译： 一种图像处理装置，用于在将以调制频率被调制的光强度照射到目标空间的前提下，从光接收元件的电输出产生距离图像和灰度图像两者。 该装置具有用于生成具有像素值的距离图像的图像发生器，每个像素值根据照射的光和接收到的光之间的相位差，提供目标空间中的物体与装置之间的距离值， 灰度图像具有根据所接收的光的强度的像素值，每个像素值提供对象的灰度值。 通过使用图像生成器的输出，可以提取对象的轮廓。

公开(公告)号：US20070237363A1

公开(公告)日：2007-10-11

申请号：US10599615

申请日：2005-07-28

申请人： Kenichi Hagio ,  Motoo Ikari ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

发明人： Kenichi Hagio ,  Motoo Ikari ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

IPC分类号： G01S17/36

CPC分类号： G01S17/36 ,  G01S17/88 ,  G01S17/89

摘要： An image processing device for generating both of a distance image and a gray image from an electrical output of a light receiving element on the precondition that a light intensity-modulated at a modulation frequency is irradiated into a target space. This device has an image generator for generating the distance image having pixel values, each of which provides a distance value between an object in the target space and the device, in accordance with a phase difference between the irradiated light and the received light, and the gray image having pixel values, each of which provides a gray value of the object, in accordance with an intensity of the received light. By use of an output of the image generator, an outline of the object can be extracted.

摘要翻译： 一种图像处理装置，用于在将以调制频率被调制的光强度照射到目标空间的前提下，从光接收元件的电输出产生距离图像和灰度图像两者。 该装置具有用于生成具有像素值的距离图像的图像发生器，每个像素值根据照射的光和接收到的光之间的相位差，提供目标空间中的物体与装置之间的距离值， 灰度图像具有根据所接收的光的强度的像素值，每个像素值提供对象的灰度值。 通过使用图像生成器的输出，可以提取对象的轮廓。

公开(公告)号：US20100097506A1

公开(公告)日：2010-04-22

申请号：US12593820

申请日：2008-03-28

申请人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

发明人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

IPC分类号： H04N5/335

CPC分类号： H01L27/1485 ,  H01L27/14806

摘要： A compact image pickup device with high sensitivity is provided, which is suitable for a spatial information detecting apparatus. The image pickup device has a plurality of image pickup units (U1) arranged on a semiconductor substrate. Each of the image pickup units (U1) has a light receiving array of photoelectric conversion elements (Px) for generating electric charges corresponding to a received-light amount, a transfer array (Y1) of charge transfer elements (Py), an accumulation array (Z1) of charge accumulation elements each having a greater charge storage capacity than a saturation charge amount of the photoelectric conversion element, and a charge-amount adjusting portion (D4) configured to determine an amount of undesired electric charges to be separated from the electric charges generated by each of the photoelectric conversion elements. The transfer array and the light receiving array (X1) are arranged in a line in a vertical direction (Dv). The accumulation array (Pz) is disposed adjacent to the transfer array (Py) in a horizontal direction (Dh).

摘要翻译： 提供了一种具有高灵敏度的紧凑型图像拾取装置，其适用于空间信息检测装置。 图像拾取装置具有布置在半导体衬底上的多个摄像单元（U1）。 每个图像拾取单元（U1）具有用于产生对应于接收光量的电荷的光电转换元件（Px）的光接收阵列，电荷转移元件（Py）的传输阵列（Y1），累积阵列 （Z1），每个电荷累积元件具有比所述光电转换元件的饱和电荷量更大的电荷存储容量;以及电荷量调节部（D4），被配置为确定与所述光电转换元件分离的不需要的电荷的量 由每个光电转换元件产生的电荷。 传送阵列和光接收阵列（X1）沿垂直方向（Dv）排列成一行。 累积阵列（Pz）在水平方向（Dh）上邻近传送阵列（Py）设置。

公开(公告)号：US20070057209A1

公开(公告)日：2007-03-15

申请号：US10573573

申请日：2005-09-16

申请人： Fumikazu Kurihara ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

发明人： Fumikazu Kurihara ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

IPC分类号： H01L27/00 ,  G01N21/86 ,  G01V8/00

CPC分类号： H01L27/14601 ,  G01S7/4914 ,  G01S7/4918 ,  G01S7/493 ,  G01S17/36 ,  G01S17/89 ,  H01L27/14603 ,  H01L27/14643 ,  H01L27/14806

摘要： A range image sensor comprising a light source, a light detecting element, a sensor control stage and an image construction stage. The image construction stage calculates a distance value for each image element in a range image based on each electric charge picked up after a specific detection period of different detection periods by the sensor control stage, and then constructs the range image. The specific detection period is one of one or more detection periods during which the light detecting element does not reach saturation, and is one detection period during which a value related to the quantity of light received from the object space becomes maximum of that of the one or more detection periods.

摘要翻译： 一种范围图像传感器，包括光源，光检测元件，传感器控制级和图像构造级。 图像构造级基于通过传感器控制级在不同的检测周期的特定检测周期之后拾取的每个电荷来计算范围图像中的每个图像元素的距离值，然后构建范围图像。 特定检测周期是光检测元件未达到饱和的一个以上的检测期间之一，并且是与从对象空间接收的光量相关的值变得最大的一个检测期间 或更多的检测周期。

公开(公告)号：US08264577B2

公开(公告)日：2012-09-11

申请号：US12593820

申请日：2008-03-28

申请人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

发明人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

IPC分类号： H04N5/335 ,  H04L31/113 ,  H01L27/00

CPC分类号： H01L27/1485 ,  H01L27/14806

摘要： A compact image pickup device with high sensitivity is provided, which is suitable for a spatial information detecting apparatus. The image pickup device has a plurality of image pickup units arranged on a semiconductor substrate. Each of the image pickup units has a light receiving array of photoelectric conversion elements for generating electric charges corresponding to a received-light amount, a transfer array of charge transfer elements, an accumulation array of charge accumulation elements each having a greater charge storage capacity than a saturation charge amount of the photoelectric conversion element, and a charge-amount adjusting portion configured to determine an amount of undesired electric charges to be separated from the electric charges generated by each of the photoelectric conversion elements. The transfer array and the light receiving array are arranged in a line in a vertical direction. The accumulation array is disposed adjacent to the transfer array in a horizontal direction.

摘要翻译： 提供了一种具有高灵敏度的紧凑型图像拾取装置，其适用于空间信息检测装置。 图像拾取装置具有布置在半导体衬底上的多个摄像单元。 每个图像拾取单元具有光电转换元件的光接收阵列，用于产生对应于接收光量的电荷，电荷转移元件的传输阵列，电荷累积元素的累积阵列，每个电荷累积元素具有比电荷存储容量更大的电荷存储能力 光电转换元件的饱和电荷量，以及电荷量调整部，被配置为确定与每个光电转换元件产生的电荷分离的不需要的电荷的量。 传送阵列和光接收阵列沿垂直方向排列成一行。 累积阵列在水平方向上邻近传送阵列设置。

公开(公告)号：US07876422B2

公开(公告)日：2011-01-25

申请号：US12090349

申请日：2006-11-14

申请人： Yusuke Hashimoto ,  Yuji Takada ,  Kenji Imai ,  Fumi Tsunesada

发明人： Yusuke Hashimoto ,  Yuji Takada ,  Kenji Imai ,  Fumi Tsunesada

IPC分类号： G01C3/08

CPC分类号： H01L27/14812 ,  G01S7/4914 ,  G01S17/36 ,  H04N5/359 ,  H04N5/3592

摘要： A spatial information detecting device is provided, which is capable of reducing the possibility that a saturation phenomenon is caused by the influence of an environmental light. This device includes a photoelectric converting portion for receiving a signal light from a target space to generate electric charges, a charge separating portion for separating electric charges corresponding to a constant amount of a bias component as undesired electric charges from the electric charges generated by the photoelectric converting portion, a charge accumulating portion for accumulating the remaining electric charges as effective electric charges reflecting a fluctuation component of the signal light, a barrier control electrode for forming a potential barrier between the charge separating portion and the charge accumulating portion, and a charge take-out portion for outputting the effective electric charges as an received-light output. By controlling a voltage applied to the barrier control electrode to change a height of the potential barrier, it is possible to adjust an amount of electric charges flowing from the charge separating portion into the charge accumulating portion over the potential barrier.

摘要翻译： 提供一种空间信息检测装置，其能够降低由环境光的影响引起的饱和现象的可能性。 该装置包括用于接收来自目标空间的信号光以产生电荷的光电转换部分，用于将与恒定量的偏置分量相对应的电荷从由光电产生的电荷中分离成不需要的电荷的电荷分离部分 转换部分，用于累积剩余电荷作为反映信号光的波动分量的有效电荷的电荷累积部分，用于在电荷分离部分和电荷累积部分之间形成势垒的势垒控制电极， 输出部分，用于输出有效电荷作为接收光输出。 通过控制施加到势垒控制电极的电压来改变势垒的高度，可以调节从电荷分离部分流过电势势垒的电荷累积部分的电荷量。

公开(公告)号：US07718938B2

公开(公告)日：2010-05-18

申请号：US11918745

申请日：2006-04-17

申请人： Fumikazu Kurihara ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

发明人： Fumikazu Kurihara ,  Yuji Takada ,  Yusuke Hashimoto ,  Fumi Tsunesada

IPC分类号： G01B11/14

CPC分类号： G01V8/20 ,  G01S7/4918 ,  G01S17/36 ,  G01S17/87 ,  G01S17/89

摘要： A spatial information detection system, which is capable of, even when detecting spatial information from a common target space by use of a plurality of detection devices, achieving accurate detection without causing interference between the detection devices. Each of the detection devices has a light emitting source for projecting light intensity-modulated with a modulation period into the target space, a photodetector for receiving light from the target space, and an evaluation portion for detecting the spatial information of the target space from a change between the light projected from the light emitting source and the light received by the photodetector. The system includes a timing control portion for controlling the timings of projecting the lights from the light emitting sources such that a light projection period of the light emitting source of one of the detection devices does not overlap with the light projection period of the light emitting source of another detection device.

摘要翻译： 即使通过使用多个检测装置从公共目标空间检测空间信息也能够实现准确的检测而不引起检测装置之间的干扰的空间信息检测系统。 每个检测装置具有用于将调制周期强度调制的光投射到目标空间中的发光源，用于从目标空间接收光的光检测器，以及用于从目标空间中检测目标空间的空间信息的评估部 在从发光源投射的光与由光电检测器接收的光之间变化。 该系统包括定时控制部分，用于控制从发光源投射光的定时，使得一个检测装置的发光源的光投射周期与发光源的光投射周期不重叠 的另一个检测装置。

公开(公告)号：US20100141927A1

公开(公告)日：2010-06-10

申请号：US12448615

申请日：2007-12-27

申请人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

发明人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

IPC分类号： G01C3/08 ,  H01L27/148 ,  H01L31/09

CPC分类号： H01L27/14887 ,  H01L27/14812

摘要： A photodetector capable of improving dynamic range for input signals is provided. This photodetector includes a photoelectric converting portion, a charge separating portion, a charge accumulating portion, a barrier electrode formed the charge separating portion and the charge accumulating portion, and a barrier-height adjusting portion electrically connected to the barrier electrode. Undesired electric charges such as generated when environment light is incident on the photoelectric converting portion are removed by the charge separating portion. A potential barrier with an appropriate height is formed under the barrier electrode by applying a voltage to the barrier electrode according to an electric charge amount supplied from the charge separating portion to the barrier-height adjusting portion. Electric charges flowing from the charge separating portion into the charge accumulating portion over the potential barrier are provided as an output of the photodetector.

摘要翻译： 提供能够改善输入信号的动态范围的光检测器。 该光检测器包括光电转换部分，电荷分离部分，电荷累积部分，形成电荷分离部分和电荷累积部分的势垒电极，以及与阻挡电极电连接的势垒高度调节部分。 当环境光入射到光电转换部分时产生的不期望的电荷被电荷分离部分除去。 通过根据从电荷分离部向阻挡高度调节部供给的电荷量向阻挡电极施加电压，在阻挡电极下形成具有适当高度的势垒。 作为光电检测器的输出，提供从电荷分离部分流过势垒上的电荷累积部分的电荷。

公开(公告)号：US07601992B2

公开(公告)日：2009-10-13

申请号：US10563619

申请日：2005-03-17

申请人： Yusuke Hashimoto ,  Yuji Takada ,  Fumikazu Kurihara ,  Fumi Tsunesada

发明人： Yusuke Hashimoto ,  Yuji Takada ,  Fumikazu Kurihara ,  Fumi Tsunesada

IPC分类号： G02B5/32

CPC分类号： H01L31/103 ,  G01S7/4914 ,  G01S17/36 ,  H01L27/14609 ,  H04N5/335

摘要： A light detecting element 1 including an element formation layer 22 which contains a well region 31. A surface electrode 25 is formed on the layer 22 through an insulating layer 24. The region 31 contains an electron holding region 32. The region 32 contains a hole holding region 33. The layer 24 contains a control electrode 26 facing the region 33 through the layer 24. Electrons and holes are generated at the layer 22. There are two selected states. In one state, by controlling each electric potential applied to the electrodes 25, 26, electrons are gathered at the region 32, while holes are held at the region 33. In another state, recombination is stimulated between the electrons and the holes. After the recombination, the remaining electrons are picked out as received light output.

摘要翻译： 光检测元件1，其包括含有阱区31的元件形成层22.表面电极25通过绝缘层24形成在层22上。区域31包含电子保持区32.区域32包含孔 层24包含面向通过层24的区域33的控制电极26.在层22处产生电子和空穴。存在两种选择的状态。 在一个状态下，通过控制施加到电极25,26的每个电位，电子在区域32处聚集，而空穴被保持在区域33处。在另一个状态下，在电子和空穴之间激发复合。 复合后，剩余的电子被选出作为接收光输出。

公开(公告)号：US08441619B2

公开(公告)日：2013-05-14

申请号：US12448615

申请日：2007-12-27

申请人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

发明人： Yusuke Hashimoto ,  Fumi Tsunesada ,  Kenji Imai ,  Yuji Takada

IPC分类号： G01C3/08

CPC分类号： H01L27/14887 ,  H01L27/14812

摘要： A photodetector capable of improving dynamic range for input signals is provided. This photodetector includes a photoelectric converting portion, a charge separating portion, a charge accumulating portion, a barrier electrode formed the charge separating portion and the charge accumulating portion, and a barrier-height adjusting portion electrically connected to the barrier electrode. Undesired electric charges such as generated when environment light is incident on the photoelectric converting portion are removed by the charge separating portion. A potential barrier with an appropriate height is formed under the barrier electrode by applying a voltage to the barrier electrode according to an electric charge amount supplied from the charge separating portion to the barrier-height adjusting portion. Electric charges flowing from the charge separating portion into the charge accumulating portion over the potential barrier are provided as an output of the photodetector.

摘要翻译： 提供能够改善输入信号的动态范围的光检测器。 该光检测器包括光电转换部分，电荷分离部分，电荷累积部分，形成电荷分离部分和电荷累积部分的势垒电极，以及与阻挡电极电连接的势垒高度调节部分。 当环境光入射到光电转换部分时产生的不期望的电荷被电荷分离部分除去。 通过根据从电荷分离部向阻挡高度调节部供给的电荷量向阻挡电极施加电压，在阻挡电极下形成具有适当高度的势垒。 作为光电检测器的输出，提供从电荷分离部分流过势垒上的电荷累积部分的电荷。