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1. 发明公开

EP1668384A1 A range image sensor 有权
标题翻译：范围图像传感器
公开(公告)号：EP1668384A1
公开(公告)日：2006-06-14
申请号：EP05785265.9
申请日：2005-09-16
申请人： MATSUSHITA ELECTRIC WORKS, LTD.
发明人： KURIHARA, Fumikazu , TAKADA, Yuji , HASHIMOTO, Yusuke , TSUNESADA, Fumi
IPC分类号： G01S7/493 , H01L27/148
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.

2. 发明公开

EP1944622A1 SPATIAL INFORMATION DETECTING DEVICE 有权转让
标题翻译： ERKENNUNGSGERÄTFÜRRAUMINFORMATION
公开(公告)号：EP1944622A1
公开(公告)日：2008-07-16
申请号：EP07829486.5
申请日：2007-10-10
申请人： MATSUSHITA ELECTRIC WORKS, LTD.
发明人： KUMAHARA, Minoru , HASHIMOTO, Yusuke , SAKAMOTO, Shinji , TAKADA, Yuji
IPC分类号： G01S17/36 , G01C3/06
CPC分类号： G01S17/36 , G01S7/4913 , G01S7/4915 , G01S7/493 , G01S7/497 , G01S17/89
摘要： In an apparatus using an intensity-modulated light for detection of spatial information based upon light intensity of light reflected from a target space, a timing synchronization circuit is provided to synchronize a phase of the intensity-modulated light from a light-emitting element with a timing of operating a light-receiving element receiving the intensity-modulated light. The light-receiving element is caused to operate for enabling the detection of intensity of the received light for each of a plurality of phase regions within one cycle of the intensity-modulated light. The timing synchronization circuit functions to compare a cyclic variation determining the operation of the light-receiving element with a cyclic variation associated with an output from a light-emitting element driving circuit in order to keep a constant phase difference between these two cyclic variations.
摘要翻译：在使用强度调制光用于基于从目标空间反射的光的光强度来检测空间信息的装置中，提供定时同步电路以使来自发光元件的强度调制光的相位与操作接收强度调制光的光接收元件的定时。导致光接收元件工作，以便能够在强度调制光的一个周期内检测多个相位区域中的每一个的接收光的强度。定时同步电路用于将确定光接收元件的操作的循环变化与与发光元件驱动电路的输出相关联的循环变化进行比较，以便在这两个循环变化之间保持恒定的相位差。

3. 发明授权

EP1668384B1 A range image sensor 有权
标题翻译：范围图像传感器
公开(公告)号：EP1668384B1
公开(公告)日：2008-04-16
申请号：EP05785265.9
申请日：2005-09-16
申请人： MATSUSHITA ELECTRIC WORKS, LTD.
发明人： KURIHARA, Fumikazu , TAKADA, Yuji , HASHIMOTO, Yusuke , TSUNESADA, Fumi
IPC分类号： G01S7/493 , H01L27/148
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.

4. 发明公开

EP1771749A1 IMAGE PROCESSING DEVICE 有权
标题翻译：图像处理设备
公开(公告)号：EP1771749A1
公开(公告)日：2007-04-11
申请号：EP05768662.8
申请日：2005-07-28
申请人： MATSUSHITA ELECTRIC WORKS, LTD.
发明人： HAGIO, Kenichi , IKARI, Motoo , TAKADA, Yuji , HASHIMOTO, Yusuke , TSUNESADA, Fumi
IPC分类号： G01S17/36 , G01S17/88
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进行了强度调制的光照射到目标空间的前提下，根据光接收元件的电输出生成距离图像和灰度图像两者。该装置具有图像生成器，用于根据照射光与接收光之间的相位差来生成具有像素值的距离图像，每个像素值提供目标空间中的对象与装置之间的距离值，并且灰度图像具有像素值，每个灰度图像根据接收到的光的强度提供对象的灰度值。通过使用图像生成器的输出，可以提取对象的轮廓。

5. 发明公开

EP1944571A1 SPACE INFORMATION DETECTING APPARATUS AND PHOTOELECTRIC DETECTOR PREFERABLE TO THE SAME 有权
标题翻译： DAFÜRBEVORZUGTER FOTOELEKTRISCHER DETEKTOR的RAUMINFORMATIONS-DETEKTIONSVORRICHTUNG
公开(公告)号：EP1944571A1
公开(公告)日：2008-07-16
申请号：EP06823376.6
申请日：2006-11-14
申请人： Matsushita Electric Works, Ltd
发明人： HASHIMOTO, Yusuke , TAKADA, Yuji , IMAI, Kenji , TSUNESADA, Fumi
IPC分类号： G01C3/06 , G01S17/36 , H01L27/148 , H04N5/335
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，可以通过势垒调节从电荷分离部分流向电荷累积部分的电荷量。

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