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1. 发明授权

US06639656B2 Distance measuring apparatus 有权
公开(公告)号：US06639656B2
公开(公告)日：2003-10-28
申请号：US10098566
申请日：2002-03-18
申请人： Yuji Takada , Satoshi Furukawa , Atsuyuki Hirono , Motoo Ikari
发明人： Yuji Takada , Satoshi Furukawa , Atsuyuki Hirono , Motoo Ikari
IPC分类号： G01C308
CPC分类号： G01S17/89 , G01S7/4876 , G01S17/026
摘要： Disclosed is a distance measuring apparatus for measuring a distance to a target object also its shape precisely without influence of noise, which is applied to a invader monitoring system. This apparatus comprises a clock signal generator unit, a modulated light projector unit, a light receiver unit, and a demodulator unit, and obtains a range image presenting signal levels changing according to the distances to the objects including the target object by irradiating light onto the objects and receiving reflected light. In the demodulator unit, the range image is processed for evaluating and removing noise components, for interpolating and averaging noise removed region, and for selecting the target object region. Those processes are carried out from the following point of view, the variation of the distance signal levels, the received quantity of light, and the variation of the received quantity of light. Thus a range image without no noise and including substantially only the target object data is obtained, and therefore it is possible to measure a distance to the target object and its shape precisely without influence of noise.

2. 发明授权

US07138646B2 Light receiving device with controllable sensitivity and spatial information detecting apparatus with charge discarding device using the same 有权
标题翻译：具有可控灵敏度的光接收装置和具有使用其的放电装置的空间信息检测装置
公开(公告)号：US07138646B2
公开(公告)日：2006-11-21
申请号：US10510216
申请日：2003-07-14
申请人： Yusuke Hashimoto , Yuji Takada , Fumikazu Kurihara , Satoshi Furukawa , Motoo Ikari
发明人： Yusuke Hashimoto , Yuji Takada , Fumikazu Kurihara , Satoshi Furukawa , Motoo Ikari
IPC分类号： G01N21/86
CPC分类号： G01S7/493 , G01S7/4914 , G01S17/36 , H01L27/14806 , H01L27/14831 , H04N5/3597
摘要： A spatial information detecting apparatus using an intensity-modulated light has a photoelectric converter for receiving a light provided from a space, into which a light intensity-modulated by a predetermined modulation signal is being irradiated, and generating amounts of electric charges corresponding to an intensity of received light; charge discarding portion having an electrode for removing dispensable charges from the electric charges generated by the photoelectric converter according to a voltage applied to the electrode; charge storage portion for storing signal charges from the electric charges generated by the photoelectric converter; control circuit for controlling the voltage applied to the electrode at a timing synchronized with a period of the modulation signal to change a ratio of the signal charges stored in the charge storage portion to the electric charges generated by the photoelectric converter; charge ejector for outputting the signal charges from the charge storage portion; and an analyzer for determining spatial information from an output of the charge ejector. According to this apparatus, since the dispensable charges are previously removed from the electric charges generated by the photoelectric converter by the charge discarding portion, it is possible to improve S/N ratio and accurately determine the spatial information.
摘要翻译：使用强度调制光的空间信息检测装置具有光电转换器，用于接收由照射由预定调制信号调制的光的空间提供的光，并产生与强度对应的电荷量收到光; 具有用于根据施加到所述电极的电压从所述光电转换器产生的电荷中去除可分配电荷的电极的放电部分; 电荷存储部分，用于存储由光电转换器产生的电荷的信号电荷; 控制电路，用于在与调制信号的周期同步的定时控制施加到电极的电压，以将存储在电荷存储部分中的信号电荷的比率改变为由光电转换器产生的电荷; 电荷喷射器，用于从电荷存储部分输出信号电荷; 以及用于从所述电荷喷射器的输出确定空间信息的分析器。根据该装置，由于通过电荷丢弃部分预先从光电转换器产生的电荷中去除了可分配的电荷，所以可以提高S / N比并精确地确定空间信息。

3. 发明申请

US20050178946A1 Light receiving device with controllable sensitivity and spatial information detecting apparatus using the same 有权
标题翻译：具有可控灵敏度的光接收装置和使用其的空间信息检测装置
公开(公告)号：US20050178946A1
公开(公告)日：2005-08-18
申请号：US10510216
申请日：2003-07-14
申请人： Yusuke Hashimoto , Yuji Takada , Fumikazu Kurihara , Satoshi Furukawa , Motoo Ikari
发明人： Yusuke Hashimoto , Yuji Takada , Fumikazu Kurihara , Satoshi Furukawa , Motoo Ikari
IPC分类号： G01S7/493 , G01S17/36 , H01L27/148 , H04N5/359 , H01L27/00 , H01L31/00
CPC分类号： G01S7/493 , G01S7/4914 , G01S17/36 , H01L27/14806 , H01L27/14831 , H04N5/3597
摘要： A spatial information detecting apparatus using an intensity-modulated light has a photoelectric converter for receiving a light provided from a space, into which a light intensity-modulated by a predetermined modulation signal is being irradiated, and generating amounts of electric charges corresponding to an intensity of received light; charge discarding portion having an electrode for removing dispensable charges from the electric charges generated by the photoelectric converter according to a voltage applied to the electrode; charge storage portion for storing signal charges from the electric charges generated by the photoelectric converter; control circuit for controlling the voltage applied to the electrode at a timing synchronized with a period of the modulation signal to change a ratio of the signal charges stored in the charge storage portion to the electric charges generated by the photoelectric converter; charge ejector for outputting the signal charges from the charge storage portion; and an analyzer for determining spatial information from an output of the charge ejector. According to this apparatus, since the dispensable charges are previously removed from the electric charges generated by the photoelectric converter by the charge discarding portion, it is possible to improve S/N ratio and accurately determine the spatial information.
摘要翻译：使用强度调制光的空间信息检测装置具有光电转换器，用于接收由照射由预定调制信号调制的光的空间提供的光，并产生与强度对应的电荷量收到光; 具有用于根据施加到所述电极的电压从所述光电转换器产生的电荷中去除可分配电荷的电极的放电部分; 电荷存储部分，用于存储由光电转换器产生的电荷的信号电荷; 控制电路，用于在与调制信号的周期同步的定时控制施加到电极的电压，以将存储在电荷存储部分中的信号电荷的比率改变为由光电转换器产生的电荷; 电荷喷射器，用于从电荷存储部分输出信号电荷; 以及用于从所述电荷喷射器的输出确定空间信息的分析器。根据该装置，由于通过电荷丢弃部分预先从光电转换器产生的电荷中去除了可分配的电荷，所以可以提高S / N比并精确地确定空间信息。

4. 发明授权

US06513214B2 Method of producing plural device chips from a thin plate of a pyroelectric material 失效
公开(公告)号：US06513214B2
公开(公告)日：2003-02-04
申请号：US09807414
申请日：2001-04-19
申请人： Makoto Nishimura , Kenichi Kimura , Nobuyuki Miyagawa , Masato Kawashima , Yoshimitsu Nakamura , Motoo Ikari , Yuji Takada , Ryo Taniguchi
发明人： Makoto Nishimura , Kenichi Kimura , Nobuyuki Miyagawa , Masato Kawashima , Yoshimitsu Nakamura , Motoo Ikari , Yuji Takada , Ryo Taniguchi
IPC分类号： H01L4100
CPC分类号： H01L37/02 , Y10T29/42 , Y10T29/49155 , Y10T29/49156
摘要： A method of producing plural device chips from a thin plate of a pyroelectric material comprises the following steps. First, plural device-forming regions each having an electrode and a circuit pattern for electrically connecting the electrodes are formed on each of front and rear surfaces of the thin plate to obtain a device substrate. By making an electrical connection between the circuit patterns, and grounding it, all of the device-forming regions on the device substrate are at the same potential. Next, a blast treatment is performed to the device substrate to remove a required region of the pyroelectric material, while leaving a bridge portion extending between adjacent device-forming regions and having the circuit patterns thereon, so that a device-chip aggregate is formed, in which adjacent device chips are coupled through the bridge portion. Subsequently, by removing the bridge portion, the device chip is separated from the device-chip aggregate.

5. 发明授权

US06399947B2 Infrared ray receiving element and infrared ray sensor using the same 有权
标题翻译：红外线接收元件和使用其的红外线传感器
公开(公告)号：US06399947B2
公开(公告)日：2002-06-04
申请号：US09734397
申请日：2000-12-11
申请人： Hiroyuki Yagyu , Tomoaki Matsushima , Motoo Ikari , Yuji Takada , Ryo Taniguchi , Makoto Nishimura , Nobuyuki Miyagawa , Masato Kawashima
发明人： Hiroyuki Yagyu , Tomoaki Matsushima , Motoo Ikari , Yuji Takada , Ryo Taniguchi , Makoto Nishimura , Nobuyuki Miyagawa , Masato Kawashima
IPC分类号： G01J102
CPC分类号： G01J5/34
摘要： An infrared ray receiving element includes a substrate made of a pyroelectric material and having at least one cantilever portion surrounded by a slit, in which at least a part of the cantilever portion in the substrate is uniformly polarized in the same direction and the remainder in the substrate includes a portion polarized at random. At least a pair of electrodes are respectively provided on a top surface and a bottom surface of the cantilever portion.
摘要翻译：一种红外线接收元件包括由热电材料制成的基片，并具有被狭缝包围的至少一个悬臂部分，其中基片中的悬臂部分的至少一部分在同一方向上均匀偏振，其余部分在衬底包括随机偏振的部分。至少一对电极分别设置在悬臂部分的顶表面和底表面上。

6. 发明授权

US07834305B2 Image processing device 有权
标题翻译：图像处理装置
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。

7. 发明申请

US20070237363A1 Image Processing Device 有权
标题翻译：图像处理装置
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。

8. 发明授权

US4761546A Optical displacement measuring system with nonlinearity correction 失效
标题翻译：具有非线性校正的光学位移测量系统
公开(公告)号：US4761546A
公开(公告)日：1988-08-02
申请号：US929417
申请日：1986-11-12
申请人： Motoo Ikari , Yuji Takada , Shintaro Yamamoto , Katsuhiro Teramae , Makio Asai
发明人： Motoo Ikari , Yuji Takada , Shintaro Yamamoto , Katsuhiro Teramae , Makio Asai
IPC分类号： G01C3/10 , G01S17/46 , G01J1/20 , G01C3/00
CPC分类号： G01S17/48 , G01C3/10
摘要： An optical displacement measuring system utilizing a triangulation is so arranged that light receiving means receives light reflected back from an object to be measured and generates a pair of output signals having mutually opposite values and responsive to a position of a light spot on the light receiving means. An operational means performs addition and subtraction over the pair of positional output signals and to obtain a ratio between the both added and subtracted output signals for generating a measured distance signal, and a linearity correcting means provides a mathematical correction number to one of the pair of positional output signals to correct any nonlinearity of the measured distance signal, for providing the linearity to the measured distance signal with a simple arrangement.
摘要翻译：利用三角测量的光学位移测量系统被布置成使得光接收装置接收从待测物体反射回的光，并产生具有相反值的一对输出信号，并且响应于光接收装置上的光点的位置。操作装置对一对位置输出信号执行加法和减法，并且获得加法和相减输出信号之间的比率以产生测量的距离信号，线性校正装置向一对位置输出信号以校正测量的距离信号的任何非线性，以简单的布置为测量的距离信号提供线性。

9. 发明授权

US06677589B2 Object detecting device with a pyroelectric sensor 有权
标题翻译：具有热电传感器的物体检测装置
公开(公告)号：US06677589B2
公开(公告)日：2004-01-13
申请号：US10090825
申请日：2002-03-06
申请人： Atsushi Hironaka , Motoo Ikari , Yuji Takada , Hiroshi Matsuda , Yorinobu Murayama
发明人： Atsushi Hironaka , Motoo Ikari , Yuji Takada , Hiroshi Matsuda , Yorinobu Murayama
IPC分类号： H01J440
CPC分类号： G08B13/191 , G01J5/34
摘要： An object detecting device utilizes a pyroelectric sensor providing a sensing current, a voltage amplifier providing an amplified voltage proportional to the sensing current, and a level monitor providing a detection signal when the amplified voltage exceeds a detection threshold. The device has a standby mode where the voltage amplifier receives a limited source current to provide the voltage of low amplification, and the level monitor provides a wake-up signal when the low amplified voltage exceeds a preliminary threshold lower than the detection threshold. In response to the wake-up signal, the device is switched to an operation mode where the amplifier receives a rated source current to provide a voltage of high amplification for comparison with the detection threshold. Thus, the amplifier is kept to be less-power consuming in the absence of the wake-up signal, reducing a power requirement.
摘要翻译：物体检测装置利用提供感测电流的热电传感器，提供与感测电流成比例的放大电压的电压放大器，以及当放大电压超过检测阈值时提供检测信号的电平监视器。器件具有待机模式，其中电压放大器接收有限的源电流以提供低放大的电压，并且当低放大电压超过低于检测阈值的初步阈值时，电平监视器提供唤醒信号。响应于唤醒信号，器件切换到操作模式，其中放大器接收额定源电流以提供与检测阈值相比较的高放大电压。因此，在没有唤醒信号的情况下，放大器保持功耗较低，从而降低了功率需求。

10. 发明申请

US20050265626A1 Image processor and face detector using the same 有权
标题翻译：图像处理器和使用相同的面部检测器
公开(公告)号：US20050265626A1
公开(公告)日：2005-12-01
申请号：US11097187
申请日：2005-04-04
申请人： Junpei Endo , Motoo Ikari , Satoshi Furukawa , Kenichi Hagio
发明人： Junpei Endo , Motoo Ikari , Satoshi Furukawa , Kenichi Hagio
IPC分类号： G06T1/00 , G06K9/00 , H04N5/225 , H04N5/232 , G06K9/40
CPC分类号： G06K9/00228 , H04N5/23219 , H04N5/2351 , H04N5/2353 , H04N5/2354 , H04N5/243
摘要： An image processor is provided, which has the capability of detecting an object such as a human face from an image taken against the sun with high accuracy. An image signal provided from an image pickup unit is adjusted at an analog gain by an image adjuster. An output of the image adjuster is converted into a digital image data, and stored in a memory. A feature of the object is extracted from this digital image data to detect an object area in the image. When the object area is not detected, an analog-gain controller sends an analog-gain control signal to the image adjuster in a feedback manner-such that the image signal provided from the image pickup unit is adjusted at a different analog gain. Thus, the treatment of detecting the object area is repeated at different analog gains.
摘要翻译：提供一种图像处理器，其具有以高精度从对太阳拍摄的图像中检测诸如人脸的物体的能力。由图像拾取单元提供的图像信号由图像调节器调节为模拟增益。图像调整器的输出被转换为数字图像数据，并存储在存储器中。从该数字图像数据中提取对象的特征以检测图像中的对象区域。当未检测到对象区域时，模拟增益控制器以反馈方式向图像调整器发送模拟增益控制信号，使得从图像拾取单元提供的图像信号被调整为不同的模拟增益。因此，以不同的模拟增益重复检测对象区域的处理。

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