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    • 2. 发明授权
    • Solid-state image sensor having a voltage applier and signal readout method thereof
    • 具有电压施加器及其信号读出方法的固态图像传感器
    • US07923674B2
    • 2011-04-12
    • US11922592
    • 2006-06-06
    • Keiichiro KagawaJun Ohta
    • Keiichiro KagawaJun Ohta
    • H01L27/00
    • H04N5/23241H01L27/14609H01L27/14643H04N5/3698H04N5/37455H04N5/378
    • After resetting the potential VPD of the photodiode (11) to the predetermined potential VRST, light is incident onto the photodiode (11) for a predetermined period to decrease the VPD corresponding to the amount of the incident light. After that, a declivous ramp voltage VRAMP is applied to the source terminal of the first MOS transistor (12) which is a common-source amplifier for reading out the VPD. When the voltage difference between the gate and source of the MOS transistor (12) exceeds a threshold voltage, the MOS transistor is turned on and the output suddenly decreases. If a signal having a pulse width from the starting point of the sweep of the ramp voltage to the sudden lowering point of the output is generated, the pulse width depends on the amount of the incident light. With the signal readout of this PWM method, it is possible to lower the power consumption while a wide dynamic range is maintained, and to downsize the picture cells to achieve a higher number of picture cells.
    • 在将光电二极管(11)的潜在VPD复位到预定电位VRST之后,光入射到光电二极管(11)上一段预定的时间以减小对应于入射光量的VPD。 之后,向作为用于读出VPD的公共源放大器的第一MOS晶体管(12)的源极端子施加斜率斜坡电压VRAMP。 当MOS晶体管(12)的栅极和源极之间的电压差超过阈值电压时,MOS晶体管导通,输出突然降低。 如果产生具有从斜坡电压的扫描的起始点到输出的突然降低点的脉冲宽度的信号,则脉冲宽度取决于入射光的量。 利用该PWM方法的信号读出,可以在维持宽的动态范围的同时降低功耗,并且可以减小图像单元以实现更高数量的图像单元。
    • 3. 发明授权
    • Vision regeneration assisting apparatus
    • 视力再生辅助装置
    • US07308315B2
    • 2007-12-11
    • US10467916
    • 2002-02-14
    • Jun OhtaShigeru NishimuraKohtaro IdegamiKeiichiro Kagawa
    • Jun OhtaShigeru NishimuraKohtaro IdegamiKeiichiro Kagawa
    • A61N1/00
    • A61F9/0017A61F9/08
    • It is an object of the invention to provide a vision regeneration assisting apparatus capable of assisting in vision regeneration without making a system structure complicated.In the invention, a vision regeneration assisting apparatus for regenerating a vision of a patient going blind by a disease of a retina includes a photosensor embedded in the retina of an eye of the patient and converting an optical signal into an electric signal, photographing means for photographing an object to be recognized by the patient, image processing means for carrying out an image processing to extract a feature with respect to an image of the object obtained by the photographing means, pulse light forming means for forming a luminous flux into a pulse light to induce a vision, and irradiating means provided before the eye of the patient and applying the pulse light toward the photosensor so as to be formed as an image processed by the image processing means.
    • 本发明的目的是提供一种能够辅助视觉再现而不使系统结构复杂化的视觉再生辅助装置。 在本发明中,视网膜再生辅助装置,用于再生由视网膜疾病失明的患者的视力,包括嵌入在患者眼睛的视网膜中的光传感器,并将光信号转换为电信号,拍摄装置 拍摄要被患者识别的对象,图像处理装置,用于执行图像处理以提取关于由拍摄装置获得的对象的图像的特征;脉冲光形成装置,用于将光束形成为脉冲光 以引起视力,以及设置在患者眼睛之前的照射装置,并将脉冲光施加到光传感器,以形成为由图像处理装置处理的图像。
    • 4. 发明授权
    • Optical neural network
    • 光学神经网络
    • US5095459A
    • 1992-03-10
    • US375813
    • 1989-07-05
    • Jun OhtaKazuo KyumaShuichi TaiMasaya Oita
    • Jun OhtaKazuo KyumaShuichi TaiMasaya Oita
    • G06K9/74G06N3/067
    • G06K9/74G06N3/067
    • An optical neural network which imitates a biological neural network, to provide an associative and/or pattern recognition function, is made of light emitting elements to represent an input neuron state vector, a correlation matrix which modulates light according to stored vector information, light receiving elements, an accumulator and a comparator to perform a threshold function. A stored vector closest to an input vector can be found from a large amount of information without increasing the system size by dividing the correlation matrix and the input neuron state vector with time division techniques, frequency modulation or phase modulation techniques. Positive and negative valves can also be provided with similar techniques.
    • 模拟生物神经网络以提供关联和/或模式识别功能的光学神经网络由发光元件构成,以表示输入神经元状态向量,根据存储的矢量信息调制光的相关矩阵,光接收 元素,累加器和比较器来执行阈值函数。 可以从大量信息找到最接近输入向量的存储向量,而不需要通过用相关矩阵和输入神经元状态向量与时分技术,频率调制或相位调制技术相除来增加系统大小。 正极和负极阀也可以提供类似的技术。
    • 5. 发明授权
    • Knocking sensor
    • 敲击传感器
    • US4497198A
    • 1985-02-05
    • US514853
    • 1983-07-18
    • Juhei TakahashiKenzo MiuraShogo AsanoKunio SugiyamaKiyokane KajiJun Ohta
    • Juhei TakahashiKenzo MiuraShogo AsanoKunio SugiyamaKiyokane KajiJun Ohta
    • G01L23/22
    • G01L23/222
    • A knocking sensor comprises a casing for receiving a pickup assembly including a transducer, which produces an electrical signal in accordance with engine vibrations, and a connector having at least a single pin electrically connected to the transducer. The casing comprises a threaded projection to be screwed in a screw hole of an engine, and a nut-like periphery to be rotated by a tool. The knocking sensor can be attached to the engine by means of an impact wrench, by rotating the nut-like portion. A plug connected to one end of a shielding code can be plugged in the connector to make an electrical connection between the transducer and a signal processing circuit after the knocking sensor has been attached to the engine, and therefore, the shielding code is prevented from being damaged during installation of the knocking sensor. The use of an impact wrench ensures secure attachment of the sensor, and reduces the installation time.
    • 爆震传感器包括用于接收拾取组件的壳体,该拾取器组件包括根据发动机振动产生电信号的换能器,以及具有至少一个与换能器电连接的单个销的连接器。 壳体包括螺纹突起,该螺纹突起被拧入发动机的螺孔中,以及螺母状周边,由工具旋转。 敲击传感器可以通过冲击扳手通过旋转螺母状部分而附接到发动机。 连接到屏蔽码的一端的插头可以插入连接器中,以在爆震传感器已经附接到发动机之后在换能器和信号处理电路之间进行电连接,因此防止屏蔽码 爆震传感器安装过程中损坏。 使用冲击扳手确保传感器的安全连接,并减少安装时间。
    • 6. 发明授权
    • Information-processing system using free-space optical communication and free-space optical communication system
    • 信息处理系统采用自由空间光通信和自由空间光通信系统
    • US07715723B2
    • 2010-05-11
    • US11659101
    • 2005-07-27
    • Keiichiro KagawaYuki MaedaJun Ohta
    • Keiichiro KagawaYuki MaedaJun Ohta
    • H04B10/00
    • H04B10/1141H04J14/0227
    • In a system for data communication between an information terminal to be operated by a user and remote communication nodes, the present invention intends to suppress the power consumption of the information terminal. For that purpose, communication nodes 2, 3 and 4 each emit diffuse light carrying a pilot signal blinking at a low frequency to notify the presence of the communication node and an ID signal belonging to a higher frequency range, the ID signal containing inherent address etc. for identifying each communication node. A mobile phone 1 as the information terminal captures an image and processes the image data to detect the pilot signal of each communication node. Then, determining the position of each node and setting a limited range for reading the pixels around that position, the mobile phone 1 reads the detection signals of the pixels within the limited range at high speed and obtains identification information. This information is used to identify each node and eliminate influences of any other light source that apparently resembles the pilot signal.
    • 在用户要操作的信息终端与远程通信节点之间进行数据通信的系统中,本发明旨在抑制信息终端的功耗。 为此,通信节点2,3,4分别发射携带导频信号以低频闪烁的漫射光,以通知通信节点的存在和属于较高频率范围的ID信号,该ID信号包含固有地址等 用于识别每个通信节点。 作为信息终端的移动电话1捕获图像并处理图像数据以检测每个通信节点的导频信号。 然后,确定每个节点的位置并设置用于读取围绕该位置的像素的有限范围,移动电话1以高速读取有限范围内的像素的检测信号,并获得识别信息。 该信息用于识别每个节点,并消除明显类似于导频信号的任何其他光源的影响。
    • 7. 发明申请
    • Solid-State Image Sensor and Signal Readout Method Thereof
    • 固态图像传感器及其信号读出方法
    • US20100019127A1
    • 2010-01-28
    • US11922592
    • 2006-06-06
    • Keiichiro KagawaJun Ohta
    • Keiichiro KagawaJun Ohta
    • H01L27/00H03F3/08
    • H04N5/23241H01L27/14609H01L27/14643H04N5/3698H04N5/37455H04N5/378
    • After resetting the potential VPD of the photodiode (11) to the predetermined potential VRST, light is incident onto the photodiode (11) for a predetermined period to decrease the VPD corresponding to the amount of the incident light. After that, a declivous ramp voltage VRAMP is applied to the source terminal of the first MOS transistor (12) which is a common-source amplifier for reading out the VPD. When the voltage difference between the gate and source of the MOS transistor (12) exceeds a threshold voltage, the MOS transistor is turned on and the output suddenly decreases. If a signal having a pulse width from the starting point of the sweep of the ramp voltage to the sudden lowering point of the output is generated, the pulse width depends on the amount of the incident light. With the signal readout of this PWM method, it is possible to lower the power consumption while a wide dynamic range is maintained, and to downsize the picture cells to achieve a higher number of picture cells.
    • 在将光电二极管(11)的潜在VPD复位到预定电位VRST之后,光入射到光电二极管(11)上一段预定的时间以减小对应于入射光量的VPD。 之后,向作为用于读出VPD的公共源放大器的第一MOS晶体管(12)的源极端子施加斜率斜坡电压VRAMP。 当MOS晶体管(12)的栅极和源极之间的电压差超过阈值电压时,MOS晶体管导通,输出突然降低。 如果产生具有从斜坡电压的扫描的起始点到输出的突然降低点的脉冲宽度的信号,则脉冲宽度取决于入射光的量。 利用该PWM方法的信号读出,可以在维持宽的动态范围的同时降低功耗,并且可以减小图像单元以实现更高数量的图像单元。
    • 8. 发明申请
    • PHOTO DETECTION DEVICE
    • 照片检测装置
    • US20090086071A1
    • 2009-04-02
    • US12278141
    • 2007-01-31
    • Keiichiro KagawaJun OhtaYugo NoseAtsushi WadaHajime Takashima
    • Keiichiro KagawaJun OhtaYugo NoseAtsushi WadaHajime Takashima
    • H04N5/335
    • G01J1/46H04N5/353H04N5/355H04N5/3559H04N5/374H04N5/3745H04N5/37452
    • A pixel includes a photodiode, an overflow circuit, a first sensing circuit, and a second sensing circuit. The first sensing circuit charges and discharges a cathode capacitance by a photocurrent flowing through a photodiode, and amplifies an obtained voltage by a source follower amplifier so as to be outputted to a data line. The second sensing circuit charges and discharged the cathode capacitance by the photocurrent flowing through the photodiode, and outputs electric charge stored in the cathode capacitance via the data line. A pixel circuit is configured so that a first mode in which the first sensing circuit becomes active and a second mode in which the second sensing circuit becomes active can be switched. The first mode and the second mode are switched according to an amount of light received by the photodiode included in each pixel circuit. Gain is controlled according to the amount of light received, in the first mode, and the storage time is controlled in the second mode.
    • 像素包括光电二极管,溢出电路,第一感测电路和第二感测电路。 第一感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电,并且通过源极跟随器放大器放大所获得的电压,以将其输出到数据线。 第二感测电路通过流过光电二极管的光电流对阴极电容进行充电和放电,并通过数据线输出存储在阴极电容中的电荷。 像素电路被配置为使得第一感测电路变为活动的第一模式和第二感测电路变为活动的第二模式被切换。 第一模式和第二模式根据由每个像素电路中包括的光电二极管接收的光量进行切换。 在第一模式下,根据所接收的光量来控制增益,并且在第二模式中控制存储时间。
    • 9. 发明申请
    • Information-Processing System Using Free-Space Optical Communication and Free-Space Optical Communication System
    • 信息处理系统采用自由空间光通信和自由空间光通信系统
    • US20080044188A1
    • 2008-02-21
    • US11659101
    • 2005-07-27
    • Keiichiro KagawaYuki MaedaJun Ohta
    • Keiichiro KagawaYuki MaedaJun Ohta
    • H04B10/10G06K9/46
    • H04B10/1141H04J14/0227
    • In a system for data communication between an information terminal to be operated by a user and remote communication nodes, the present invention intends to suppress the power consumption of the information terminal. For that purpose, communication nodes 2, 3 and 4 each emit diffuse light carrying a pilot signal blinking at a low frequency to notify the presence of the communication node and an ID signal belonging to a higher frequency range, the ID signal containing inherent address etc. for identifying each communication node. A mobile phone 1 as the information terminal captures an image and processes the image data to detect the pilot signal of each communication node. Then, determining the position of each node and setting a limited range for reading the pixels around that position, the mobile phone 1 reads the detection signals of the pixels within the limited range at high speed and obtains identification information. This information is used to identify each node and eliminate influences of any other light source that apparently resembles the pilot signal.
    • 在用户要操作的信息终端与远程通信节点之间进行数据通信的系统中,本发明旨在抑制信息终端的功耗。 为此,通信节点2,3,4分别发射携带导频信号以低频闪烁的漫射光,以通知通信节点的存在和属于较高频率范围的ID信号,该ID信号包含固有地址等 用于识别每个通信节点。 作为信息终端的移动电话1捕获图像并处理图像数据以检测每个通信节点的导频信号。 然后,确定每个节点的位置并设置用于读取围绕该位置的像素的有限范围,移动电话1以高速读取有限范围内的像素的检测信号,并获得识别信息。 该信息用于识别每个节点,并消除明显类似于导频信号的任何其他光源的影响。
    • 10. 发明授权
    • Built-in-eye eyesight stimulating apparatus
    • 内置视力刺激装置
    • US07191010B2
    • 2007-03-13
    • US10469342
    • 2002-02-28
    • Jun OhtaShigeru NishimuraKohtaro IdegamiNorikatsu YoshidaKeiichiro Kagawa
    • Jun OhtaShigeru NishimuraKohtaro IdegamiNorikatsu YoshidaKeiichiro Kagawa
    • A61N1/00
    • A61F9/08A61N1/36046
    • An object of the invention is to provide an intraocular implant-type vision stimulating unit which is capable of outputting a bipolar pulse signal in a simple constitution, and is highly sensitive, compact, and low power consumptive.In the invention, an intraocular implant-type vision stimulating unit for artificially generating the vision or a portion of the vision includes: a photoelectric conversion circuit for converting incoming light into an electrical signal; a pulse conversion circuit for converting the electrical signal outputted from the photoelectric conversion circuit into an electric pulse signal of a frequency corresponding to a magnitude thereof, and for outputting the same; a waveform shaping circuit for converting the pulse signal outputted from the pulse conversion circuit into a bipolar pulse signal, and for outputting the same; a power supply circuit for supplying electric power to each of the circuits, wherein the bipolar pulse signal is imparted to a retinal region through an electrode.
    • 本发明的目的是提供一种能够以简单的结构输出双极脉冲信号,并且是高灵敏度,紧凑的和低功耗的眼内植入型视觉刺激单元。 在本发明中,用于人造生成视觉或视觉的一部分的眼内植入型视觉刺激单元包括:光电转换电路,用于将入射光转换成电信号; 脉冲转换电路,用于将从光电转换电路输出的电信号转换为与其大小相对应的频率的电脉冲信号,并输出该脉冲信号; 波形整形电路,用于将从脉冲转换电路输出的脉冲信号转换为双极性脉冲信号,并输出; 用于向每个电路提供电力的电源电路,其中通过电极将双极性脉冲信号赋予视网膜区域。