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.

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。

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。

公开(公告)号：US06552552B2

公开(公告)日：2003-04-22

申请号：US09897077

申请日：2001-07-03

申请人： Atsuyuki Hirono ,  Hideo Mori ,  Yuji Takada ,  Keisuke Yoshikawa

发明人： Atsuyuki Hirono ,  Hideo Mori ,  Yuji Takada ,  Keisuke Yoshikawa

IPC分类号： G01R2726

CPC分类号： G01R27/2605

摘要： A capacitance type moisture sensor having the capability of accurately detecting amounts of water is provided. This sensor has a sensor housing having an electrically-insulating wall, a pair of electrodes disposed on the sensor housing, and a circuit unit. An outer surface of the electrically-insulating wall faces a space where the amounts of water should be detected. On an inner surface of the electrically-insulating wall, at least one of the electrodes is formed. An electric field developed between the electrodes is defined as a moisture detecting region. The circuit unit includes a capacitance detecting circuit for detecting a capacitance value between the electrodes, which changes in response to the amounts of water in the moisture detecting region, and an output circuit for providing an electrical signal corresponding toe the amounts of water according the capacitance value detected by the capacitance detecting circuit.

摘要翻译： 提供具有准确检测水量的电容型水分传感器。 该传感器具有传感器外壳，其具有电绝缘壁，设置在传感器外壳上的一对电极和电路单元。 电绝缘壁的外表面面对应检测水量的空间。 在电绝缘壁的内表面上形成至少一个电极。 在电极之间产生的电场被定义为水分检测区域。 电路单元包括电容检测电路，用于检测响应于水分检测区域中的水量而改变的电极之间的电容值，以及用于提供与根据电容量的水量相对应的电信号的输出电路 值由电容检测电路检测。

公开(公告)号：US06756793B2

公开(公告)日：2004-06-29

申请号：US09897077

申请日：2001-07-03

申请人： Atsuyuki Hirono ,  Hideo Mori ,  Yuji Takada ,  Keisuke Yoshikawa

发明人： Atsuyuki Hirono ,  Hideo Mori ,  Yuji Takada ,  Keisuke Yoshikawa

IPC分类号： G01R2726

CPC分类号： G01R27/2605

摘要： A capacitance type moisture sensor having the capability of accurately detecting amounts of water is provided. This sensor has a sensor housing having an electrically-insulating wall, a pair of electrodes disposed on the sensor housing, and a circuit unit. An outer surface of the electrically-insulating wall faces a space where the amounts of water should be detected. On an inner surface of the electrically-insulating wall, at least one of the electrodes is formed. An electric field developed between the electrodes is defined as a moisture detecting region. The circuit unit includes a capacitance detecting circuit for detecting a capacitance value between the electrodes, which changes in response to the amounts of water in the moisture detecting region, and an output circuit for providing an electrical signal corresponding toe the amounts of water according the capacitance value detected by the capacitance detecting circuit.

摘要翻译： 提供具有准确检测水量的电容型水分传感器。 该传感器具有传感器外壳，其具有电绝缘壁，设置在传感器外壳上的一对电极和电路单元。 电绝缘壁的外表面面对应检测水量的空间。 在电绝缘壁的内表面上形成至少一个电极。 在电极之间产生的电场被定义为水分检测区域。 电路单元包括电容检测电路，用于检测响应于水分检测区域中的水量而改变的电极之间的电容值，以及用于提供与根据电容量的水量相对应的电信号的输出电路 值由电容检测电路检测。

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。

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：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。

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。