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1. 发明授权

US07191010B2 Built-in-eye eyesight stimulating apparatus 有权
标题翻译：内置视力刺激装置
公开(公告)号：US07191010B2
公开(公告)日：2007-03-13
申请号：US10469342
申请日：2002-02-28
申请人： Jun Ohta , Shigeru Nishimura , Kohtaro Idegami , Norikatsu Yoshida , Keiichiro Kagawa
发明人： Jun Ohta , Shigeru Nishimura , Kohtaro Idegami , Norikatsu Yoshida , Keiichiro Kagawa
IPC分类号： A61N1/00
CPC分类号： A61F9/08 , A61N1/36046
摘要： 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.
摘要翻译：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。

2. 发明授权

US07308315B2 Vision regeneration assisting apparatus 失效
标题翻译：视力再生辅助装置
公开(公告)号：US07308315B2
公开(公告)日：2007-12-11
申请号：US10467916
申请日：2002-02-14
申请人： Jun Ohta , Shigeru Nishimura , Kohtaro Idegami , Keiichiro Kagawa
发明人： Jun Ohta , Shigeru Nishimura , Kohtaro Idegami , Keiichiro Kagawa
IPC分类号： A61N1/00
CPC分类号： A61F9/0017 , A61F9/08
摘要： 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.
摘要翻译：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。

3. 发明授权

US07916199B2 Photo detection device 有权
标题翻译：照片检测装置
公开(公告)号：US07916199B2
公开(公告)日：2011-03-29
申请号：US12278141
申请日：2007-01-31
申请人： Keiichiro Kagawa , Jun Ohta , Yugo Nose , Atsushi Wada , Hajime Takashima
发明人： Keiichiro Kagawa , Jun Ohta , Yugo Nose , Atsushi Wada , Hajime Takashima
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： G01J1/46 , H04N5/353 , H04N5/355 , H04N5/3559 , H04N5/374 , H04N5/3745 , H04N5/37452
摘要： 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.
摘要翻译：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。

4. 发明申请

US20060192870A1 Solid-state imaging device and driving method therefor 审中-公开
标题翻译：固态成像装置及其驱动方法
公开(公告)号：US20060192870A1
公开(公告)日：2006-08-31
申请号：US11355588
申请日：2006-02-15
申请人： Makoto Shoho , Keiichiro Kagawa , Jun Ohta
发明人： Makoto Shoho , Keiichiro Kagawa , Jun Ohta
IPC分类号： H04N5/335
CPC分类号： H04N5/37457
摘要： Regarding the solid-state imaging device and the driving method therefor, each picture cell includes a photoelectric conversion portion, a capacitive element, a comparator portion, a reset portion and a select switch element. A control voltage application portion applies a first control voltage to a control line during a signal charging period to make a voltage of the output terminal of the photoelectric conversion portion deviate from the transition region of the comparator portion and applies a second control voltage to the control line during a signal reading period to bring the voltage of the output terminal of the photoelectric conversion portion into the transition region of the comparator portion. A load device that serves as a common load for the comparator portions of picture cells is connected between a signal line and a power source of a prescribed electric voltage.
摘要翻译：关于固态成像装置及其驱动方法，每个图像单元包括光电转换部分，电容元件，比较部分，复位部分和选择开关元件。控制电压施加部在信号充电期间向控制线施加第一控制电压，使得光电转换部的输出端的电压偏离比较部的过渡区域，并向控制电压施加第二控制电压在信号读取期间，使光电转换部的输出端子的电压进入比较部的过渡区域。用作图形单元的比较器部分的公共负载的负载装置连接在信号线和规定电压的电源之间。

5. 发明授权

US07923674B2 Solid-state image sensor having a voltage applier and signal readout method thereof 有权
标题翻译：具有电压施加器及其信号读出方法的固态图像传感器
公开(公告)号：US07923674B2
公开(公告)日：2011-04-12
申请号：US11922592
申请日：2006-06-06
申请人： Keiichiro Kagawa , Jun Ohta
发明人： Keiichiro Kagawa , Jun Ohta
IPC分类号： H01L27/00
CPC分类号： H04N5/23241 , H01L27/14609 , H01L27/14643 , H04N5/3698 , H04N5/37455 , H04N5/378
摘要： 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.
摘要翻译：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。

6. 发明申请

US20080297615A1 Imaging Device and Method for Reading Signals From Such Device 失效
标题翻译：用于从该装置读取信号的成像装置和方法
公开(公告)号：US20080297615A1
公开(公告)日：2008-12-04
申请号：US11666424
申请日：2005-10-04
申请人： Keiichiro Kagawa , Yuki Maeda , Jun Ohta
发明人： Keiichiro Kagawa , Yuki Maeda , Jun Ohta
IPC分类号： H04N5/228
CPC分类号： H04N5/23241 , H04N5/341 , H04N5/3765 , H04N5/378
摘要： Each pixel cell (12) of an image sensor (10) is made of a 4-Tr structure, in which only one Tr for resetting a column (X) is so added to an ordinary 3-Tr APS as to reset only an arbitrary pixel selectively, thereby to confine the pixel size. When a pixel signal is to be read, the period, for which the pixel signals composing an ordinary image of one frame are read, is finely divided so that the pixel signals of the pixels receiving an ID light for the period are read out bit by bit and repeatedly. At this time, for only the column being read, an electric current is fed to a read amplifier in the pixel cell (12) or a variable gain amplifier in an output unit (14), thereby to suppress the power consumption. As a result, a lower power consumption and a higher pixel formation can be attained in an image pickup device for picking up an image and for acquiring the ID information of a light beacon existing in the image pickup range.
摘要翻译：图像传感器（10）的每个像素单元（12）由4-Tr结构构成，其中仅一个用于复位列（X）的Tr被添加到普通的3-Tr APS，以仅复位任意像素选择性，从而限制像素大小。当要读取像素信号时，对构成一帧的普通图像的像素信号进行读取的周期被细分，使得接收该周期的ID光的像素的像素信号被一比特地读出位和反复。此时，仅读取列，向像素单元（12）中的读取放大器或输出单元（14）中的可变增益放大器馈送电流，从而抑制功耗。结果，在用于拾取图像并用于获取存在于图像拾取范围内的光信标的ID信息的图像拾取装置中可以获得较低的功率消耗和较高的像素形成。

7. 发明授权

US07337008B2 Visual restoration aiding device 有权
标题翻译：视觉恢复辅助装置
公开(公告)号：US07337008B2
公开(公告)日：2008-02-26
申请号：US10876530
申请日：2004-06-28
申请人： Yasuo Terasawa , Hiroyuki Tashiro , Kenzo Shodo , Jun Ohta , Takashi Tokuda , Keiichiro Kagawa , Akihiro Uehara , Toru Yagi
发明人： Yasuo Terasawa , Hiroyuki Tashiro , Kenzo Shodo , Jun Ohta , Takashi Tokuda , Keiichiro Kagawa , Akihiro Uehara , Toru Yagi
IPC分类号： A61N1/18
CPC分类号： A61N1/36046
摘要： A visual restoration aiding device for restoring vision of a patient comprises: a plurality of substrates which are placed on or under a retina of a patient's eye; a plurality of electrodes which are mounted on each substrate to apply an electrical stimulation pulse signal to cells constituting the retina; and a connecting unit which has flexibility and connects the substrates.
摘要翻译：用于恢复患者视力的视觉恢复辅助装置包括：放置在患者眼睛的视网膜上或下面的多个基底; 多个电极，安装在每个基板上，以将电刺激脉冲信号施加到构成视网膜的细胞; 以及具有柔性并连接基板的连接单元。

8. 发明授权

US07728893B2 Imaging device and method for reading signals from such device 失效
标题翻译：用于从这种装置读取信号的成像装置和方法
公开(公告)号：US07728893B2
公开(公告)日：2010-06-01
申请号：US11666424
申请日：2005-10-04
申请人： Keiichiro Kagawa , Yuki Maeda , Jun Ohta
发明人： Keiichiro Kagawa , Yuki Maeda , Jun Ohta
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/23241 , H04N5/341 , H04N5/3765 , H04N5/378
摘要： Each pixel cell (12) of an image sensor (10) is made of a 4-Tr structure, in which only one Tr for resetting a column (X) is so added to an ordinary 3-Tr APS as to reset only an arbitrary pixel selectively, thereby to confine the pixel size. When a pixel signal is to be read, the period, for which the pixel signals composing an ordinary image of one frame are read, is finely divided so that the pixel signals of the pixels receiving an ID light for the period are read out bit by bit and repeatedly. At this time, for only the column being read, an electric current is fed to a read amplifier in the pixel cell (12) or a variable gain amplifier in an output unit (14), thereby to suppress the power consumption. As a result, a lower power consumption and a higher pixel formation can be attained in an image pickup device for picking up an image and for acquiring the ID information of a light beacon existing in the image pickup range.
摘要翻译：图像传感器（10）的每个像素单元（12）由4-Tr结构构成，其中仅一个用于复位列（X）的Tr被添加到普通的3-Tr APS，以仅复位任意像素选择性，从而限制像素大小。当要读取像素信号时，对构成一帧的普通图像的像素信号进行读取的周期被细分，使得接收该周期的ID光的像素的像素信号被一比特地读出位和反复。此时，仅读取列，向像素单元（12）中的读取放大器或输出单元（14）中的可变增益放大器馈送电流，从而抑制功耗。结果，在用于拾取图像并用于获取存在于图像拾取范围内的光信标的ID信息的图像拾取装置中可以获得较低的功率消耗和较高的像素形成。

9. 发明申请

US20070070060A1 Information-processing device and information-processing system 失效
标题翻译：信息处理设备和信息处理系统
公开(公告)号：US20070070060A1
公开(公告)日：2007-03-29
申请号：US11490259
申请日：2006-07-21
申请人： Keiichiro Kagawa , Jun Ohta , Yuki Maeda , Yasuo Masaki , Hideki Tanabe , Yasunari Miyake
发明人： Keiichiro Kagawa , Jun Ohta , Yuki Maeda , Yasuo Masaki , Hideki Tanabe , Yasunari Miyake
IPC分类号： G06T1/00 , G06F17/00
CPC分类号： G06T1/00
摘要： For an information terminal to be operated by users for collecting predetermined pieces of information from remote information devices by free-space optical communication, the present invention provides a technique for suppressing the power consumption of the information terminal by minimizing the amount of calculation performed to collect the aforementioned information. According to the present invention, each information device emits ID light on which a low-frequency pilot signal is superimposed. The information terminal captures a series of frames of images including the ID light and locates the ID light within the images by the following steps: (1) creating multiple levels of binned images having different resolutions for each frame of the image; (2) calculating an evaluation index for each pixel within a target range of the binned images at each level, from the lowest to the highest resolution, where the target range is narrowed every time the process switches over to a lower level. In (2), the evaluation index is calculated by an evaluation function including fast Fourier transformation performed throughout the series of frames of images. The evaluation index thus calculated is compared with a threshold to determine whether the pixel concerned is receiving ID light. The present technique significantly reduces the number of pixel to be analyzed and evaluated, thereby decreasing the total number of arithmetic operations to be performed using the evaluation function. Thus, the power consumption is suppressed.
摘要翻译：为了由用户操作的用于通过自由空间光通信从远程信息设备收集预定信息的信息终端，本发明提供了一种通过使收集的计算量最小化来抑制信息终端的功耗的技术上述信息。根据本发明，每个信息装置发射叠加有低频导频信号的ID光。信息终端捕获包括ID光的一系列图像帧，并通过以下步骤来定位图像内的ID光：（1）为图像的每个帧创建具有不同分辨率的多层分箱图像; （2）从最低分辨率到最高分辨率的每个级别的分色图像的目标范围内的每个像素的评估指标计算出，每当过程切换到较低的水平时，目标范围变窄。在（2）中，通过在整个图像帧中执行的包括快速傅立叶变换的评估函数来计算评价指标。将如此计算的评估指标与阈值进行比较，以确定相关像素是否接收ID光。本技术显着地减少要分析和评估的像素的数量，从而减少使用评估函数执行的算术运算的总数。因此，功耗被抑制。

10. 发明授权

US07715723B2 Information-processing system using free-space optical communication and free-space optical communication system 有权
标题翻译：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
公开(公告)号：US07715723B2
公开(公告)日：2010-05-11
申请号：US11659101
申请日：2005-07-27
申请人： Keiichiro Kagawa , Yuki Maeda , Jun Ohta
发明人： Keiichiro Kagawa , Yuki Maeda , Jun Ohta
IPC分类号： H04B10/00
CPC分类号： H04B10/1141 , H04J14/0227
摘要： 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.
摘要翻译：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。

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