公开(公告)号：US07170556B2

公开(公告)日：2007-01-30

申请号：US10618851

申请日：2003-07-15

Applicant: Masatoshi Kokubun ,  Toshitaka Mizuguchi ,  Jun Funakoshi ,  Hiroshi Kobayashi ,  Katsuyosi Yamamoto

Inventor： Masatoshi Kokubun ,  Toshitaka Mizuguchi ,  Jun Funakoshi ,  Hiroshi Kobayashi ,  Katsuyosi Yamamoto

IPC: H04N5/217

CPC classification number: H04N5/3598

Abstract: An image sensor for capturing image, has: a plurality of pixels arranged in a matrix each including a photoelectric conversion element for generating current according to received light intensity and a reset transistor for resetting a node of the photoelectric conversion element to a reset potential; and a sample hold circuit for sample holding a pixel potential according to the potential of the node of the pixel. And the sample hold circuit outputs the differential potential, between a first pixel potential at an end of the integration period after a first reset operation of the pixel and a second pixel potential at an end of a reset noise read period after a second reset operation after the integration period, as a pixel signal. Also in the sample hold circuit, when the second pixel potential during the reset noise read period exceeds a predetermined threshold level, the second pixel potential is set to a predetermined reference potential.

Abstract translation: 一种用于拍摄图像的图像传感器，具有：以矩阵形式排列的多个像素，每个像素包括根据接收光强度产生电流的光电转换元件和用于将光电转换元件的节点复位到复位电位的复位晶体管; 以及用于根据像素的节点的电位保持像素电位的样本的采样保持电路。 并且采样保持电路在第一复位操作之后的积分周期结束时的第一像素电位和第二复位操作之后的复位噪声读取周期结束时的第二像素电位之间输出差分电位 积分期，作为像素信号。 此外，在采样保持电路中，当复位噪声读取周期期间的第二像素电位超过预定阈值电平时，将第二像素电位设置为预定参考电位。

公开(公告)号：US07145494B2

公开(公告)日：2006-12-05

申请号：US11008292

申请日：2004-12-10

Applicant: Toshitaka Mizuguchi ,  Jun Funakoshi ,  Seiji Yamagata ,  Tsuyoshi Higuchi

Inventor： Toshitaka Mizuguchi ,  Jun Funakoshi ,  Seiji Yamagata ,  Tsuyoshi Higuchi

IPC: H03M1/12

CPC classification number: H04N5/335 ,  H03M1/0607

Abstract: A differential comparator which outputs positive and/or negative logic signals to an output terminal according to the coincidence/non-coincidence of first and second input signal levels inputted to first and second input terminals, respectively, comprises an offset cancel function composed of an offset capacitor device provided on the differential comparator side of the first and second terminals, a first switch for short-circuiting the first and second input terminals in such a way as to form a closed loop including the offset capacitor device, and a second switch for short-circuiting both the connection point between the offset capacitor device and the differential comparator, and the output terminal.

公开(公告)号：US07098950B2

公开(公告)日：2006-08-29

申请号：US09785330

申请日：2001-02-20

Applicant: Katsuyosi Yamamoto ,  Jun Funakoshi

Inventor： Katsuyosi Yamamoto ,  Jun Funakoshi

IPC: H04N9/64

CPC classification number: H04N5/361 ,  H04N5/23241 ,  H04N5/3745

Abstract: The control inputs of reset switch elements 41 to 45 are commonly connected to a row reset line 51. In a line black clamp type, cathodes as reset ends of photodiodes (31) of optical black pixels 21 to 23 are commonly connected to a potential averaging line 30. In a frame black clamp type, potential averaging lines are connected similarly to respective pixel rows on the vertical scanning start side of an optical black pixel region, and the potential averaging lines may be commonly connected to each other to operate just like one pixel row. A first block includes a pixel array and a vertical scanning circuit, while a second block includes sample and hold circuits, a horizontal scanning circuit, an amplifier and an A/D converter 19. In a low power consumption mode, power supply to the second block is ceased in a light integration period of one frame with performing light integration in the pixel array, power supply to the first and second blocks is performed in a read-out period of one frame to read out integrated signals, and power supply to the first and second blocks is ceased in a power-off period of one frame.

公开(公告)号：US20060001476A1

公开(公告)日：2006-01-05

申请号：US10991400

申请日：2004-11-19

Applicant: Makoto Yanagisawa ,  Jun Funakoshi ,  Seiji Yamagata ,  Toshitaka Mizuguchi ,  Tsuyoshi Higuchi

Inventor： Makoto Yanagisawa ,  Jun Funakoshi ,  Seiji Yamagata ,  Toshitaka Mizuguchi ,  Tsuyoshi Higuchi

IPC: H03B1/00

CPC classification number: G05F3/262

Abstract: A circuit for stabilizing an electric current includes a constant voltage supplying circuit configured to supply a constant voltage, and a current generating circuit coupled to the constant voltage supplying circuit to generate an electric current based on a predetermined voltage responsive to the constant voltage and to adjust a current amount of the electric current to a predetermined amount by feedback control based on comparison of the predetermined voltage with a voltage appearing across a predetermined resistance responsive to the electric current.

Abstract translation: 用于稳定电流的电路包括被配置为提供恒定电压的恒压供应电路和耦合到恒压供应电路的电流产生电路，以响应于恒定电压产生基于预定电压的电流并且调整 通过基于预定电压与响应于电流的预定电阻上出现的电压的反馈控制，将电流的电流量设定为预定量。

公开(公告)号：US06974944B2

公开(公告)日：2005-12-13

申请号：US10360635

申请日：2003-02-10

Applicant: Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Toshitaka Mizuguchi

Inventor： Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Toshitaka Mizuguchi

IPC: H01L27/146 ,  H01J40/14 ,  H01L27/00 ,  H04N1/028 ,  H04N5/335 ,  H04N5/341 ,  H04N5/369 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/378

CPC classification number: H04N5/3745

Abstract: An image sensor, includes: a plurality of pixel circuits, each of which comprises a photoelectric conversion element, a first transistor controlled by a detection signal generated by the photoelectric conversion element, and a second transistor connected to the first transistor and controlled by a select line; and a common amplifier circuit, which is provided commonly to the plurality of pixel circuits, and which has a third transistor connected in parallel to the first transistor, and a current circuit for supplying current to the first and third transistors, wherein an amplifying circuit, which amplifies the detection signal, is formed by the first transistor in a pixel circuit selected by the select line, and by the third transistor in th common amplifier circuit.

Abstract translation: 一种图像传感器，包括：多个像素电路，每个像素电路包括光电转换元件，由光电转换元件产生的检测信号控制的第一晶体管和连接到第一晶体管并由选择元件控制的第二晶体管 线; 以及公共放大电路，其共同地设置在多个像素电路上，并且具有与第一晶体管并联连接的第三晶体管，以及用于向第一和第三晶体管提供电流的电流电路，其中放大电路， 放大检测信号，由选择线所选择的像素电路中的第一晶体管和公共放大电路中的第三晶体管形成。

公开(公告)号：US20050072901A1

公开(公告)日：2005-04-07

申请号：US10360635

申请日：2003-02-10

Applicant: Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Toshitaka Mizuguchi

Inventor： Jun Funakoshi ,  Katsuyoshi Yamamoto ,  Toshitaka Mizuguchi

IPC: H01L27/146 ,  H01J40/14 ,  H01L27/00 ,  H04N1/028 ,  H04N5/335 ,  H04N5/341 ,  H04N5/369 ,  H04N5/374 ,  H04N5/3745 ,  H04N5/378

CPC classification number: H04N5/3745

Abstract: An image sensor, includes: a plurality of pixel circuits, each of which comprises a photoelectric conversion element, a first transistor controlled by a detection signal generated by the photoelectric conversion element, and a second transistor connected to the first transistor and controlled by a select line; and a common amplifier circuit, which is provided commonly to the plurality of pixel circuits, and which has a third transistor connected in parallel to the first transistor, and a current circuit for supplying current to the first and third transistors, wherein an amplifying circuit, which amplifies the detection signal, is formed by the first transistor in a pixel circuit selected by the select line, and by the third transistor in th common amplifier circuit.

Abstract translation: 一种图像传感器，包括：多个像素电路，每个像素电路包括光电转换元件，由光电转换元件产生的检测信号控制的第一晶体管和连接到第一晶体管并由选择元件控制的第二晶体管 线; 以及公共放大电路，其共同地设置在多个像素电路上，并且具有与第一晶体管并联连接的第三晶体管，以及用于向第一和第三晶体管提供电流的电流电路，其中放大电路， 放大检测信号，由选择线所选择的像素电路中的第一晶体管和公共放大电路中的第三晶体管形成。

公开(公告)号：US5288228A

公开(公告)日：1994-02-22

申请号：US941882

申请日：1992-09-08

Applicant: Hideo Fujita ,  Jun Funakoshi ,  Takahiro Kaba ,  Akira Shinosaki ,  Hiroyuki Araragi

Inventor： Hideo Fujita ,  Jun Funakoshi ,  Takahiro Kaba ,  Akira Shinosaki ,  Hiroyuki Araragi

IPC: C22C27/06 ,  C22C32/00 ,  F27D3/02

CPC classification number: C22C32/00 ,  C22C27/06

Abstract: A heat-resistant material having excellent high-temperature strength and high oxidation resistance at temperatures exceeding 1300.degree. C. The material is a heat-resistant Cr-Fe alloy including at least 60% of Cr and at least 5% of Fe, and having a mean grain size of at least 50 .mu.m and having a melting point of at least 1600 .degree. C., or a composite material composed of the said heat-resistant alloy serving as a metal matrix and a ceramic, and containing up to 40% by volume of a dispersed ceramic phase in the metal matrix.

Abstract translation: 一种在超过1300℃的温度下具有优异的高温强度和高抗氧化性的耐热材料。该材料是耐热Cr-Fe合金，其包含至少60％的Cr和至少5％的Fe，并且具有 平均晶粒尺寸为至少50（μm），熔点至少为1600℃，或由所述耐热合金作为金属基体和陶瓷组成的复合材料，并且含有至多 40体积％的分散的陶瓷相在金属基质中。

公开(公告)号：US08477384B2

公开(公告)日：2013-07-02

申请号：US12211613

申请日：2008-09-16

Applicant: Toshitaka Mizuguchi ,  Katsuyoshi Yamamoto ,  Jun Funakoshi ,  Tsuyoshi Higuchi

Inventor： Toshitaka Mizuguchi ,  Katsuyoshi Yamamoto ,  Jun Funakoshi ,  Tsuyoshi Higuchi

IPC: H04N1/40

CPC classification number: H01L27/14623 ,  H01L27/14603 ,  H04N5/361 ,  H04N5/378

Abstract: A solid-state image pickup device and image pickup method eliminate a dark-current component by adjusting the black level appropriately even if the dark-current component varies among horizontal lines. A pixel array includes light-receiving pixel elements and light-blocking pixel elements disposed such that horizontal lines include the light-blocking pixel elements individually. A readout circuit block reads pixel signals of each of the horizontal lines from the pixel array, inputs the pixel signals to ADC circuits (column ADC circuit block), and outputs the pixel signals of the light-blocking pixel elements. A ramp signal generation circuit obtains the pixel signals of the light-blocking pixel elements output from the readout circuit block, generates a ramp signal by using a reference level of AD conversion adjusted for each of the horizontal lines in accordance with the obtained pixel signals of the light-blocking pixel elements, and inputs the ramp signal to the ADC circuits.

Abstract translation: 固态图像拾取装置和图像拾取方法即使在暗电流分量在水平线之间变化时也可以适当地调整黑电平来消除暗电流分量。 像素阵列包括光接收像素元件和被设置为使得水平线分别包括遮光像素元件的遮光像素元件。 读出电路块从像素阵列读取每条水平线的像素信号，将像素信号输入到ADC电路（列ADC电路块），并输出遮光像素元件的像素信号。 斜坡信号发生电路获取从读出电路块输出的遮光像素元件的像素信号，根据所获得的像素信号，通过使用针对每个水平线调整的AD转换的参考电平来生成斜坡信号 遮光像素元件，并将斜坡信号输入到ADC电路。

公开(公告)号：US07593047B2

公开(公告)日：2009-09-22

申请号：US09962236

申请日：2001-09-26

Applicant: Jun Funakoshi ,  Katsuyoshi Yamamoto

Inventor： Jun Funakoshi ,  Katsuyoshi Yamamoto

IPC: H04N9/04 ,  H04N5/335 ,  H04N9/083 ,  H04N3/14

CPC classification number: H04N5/335 ,  H04N5/347 ,  H04N9/045

Abstract: The present invention is an image sensor having a pixel array, which arranges pixels having photoelectric conversion circuits in rows and columns; and a pixel selecting circuit for selecting each pixel, wherein the pixel selecting circuit selects pixels of all rows and/or pixels of all columns, and selects a pixel signal at every plural pixels among the selected pixel signals, and pixels selected from a pixel block of a plurality of rows and columns within the pixel array are dispersed within this pixel block.

公开(公告)号：US07489353B2

公开(公告)日：2009-02-10

申请号：US10925919

申请日：2004-08-26

Applicant: Jun Funakoshi

Inventor： Jun Funakoshi

IPC: H04N3/14 ,  H04N5/235

CPC classification number: H04N5/3532 ,  H04N5/3658 ,  H04N5/374

Abstract: A method for driving a solid state imaging device which prevents the generation of electronic shutter noise even when the integration time for exposure of a pixel region fluctuates. The solid state imaging device performs a rolling shutter operation that sequentially selects a reset row and a read row separated from each other in accordance with a row spacing based on integration time in the pixel array. A dummy row is selected when a reset row or a read row is not selected. The method includes selecting a dummy reset row so that the total of the number of the reset rows and the reset dummy rows that are simultaneously selected is constant regardless of the number of simultaneously selected reset rows.

Abstract translation: 一种用于驱动固态成像装置的方法，即使当像素区域的曝光的积分时间波动时也防止电子快门噪声的产生。 固态成像装置执行滚动快门操作，其根据像素阵列中的积分时间，根据行间隔依次选择彼此分离的复位行和读取行。 当未选择复位行或读取行时，选择虚拟行。 该方法包括选择虚拟复位行，使得同时选择的复位行​​数和复位虚拟行的总数不管同时选择的复位行​​数如何都是常数。