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11. 发明授权

US06204791B1 Reference voltage generator using two fine resistor ladders 有权
标题翻译：参考电压发生器使用两个精细电阻梯
公开(公告)号：US06204791B1
公开(公告)日：2001-03-20
申请号：US09211036
申请日：1998-12-15
申请人： Katsuyoshi Yamamoto , Toshitaka Mizuguchi
发明人： Katsuyoshi Yamamoto , Toshitaka Mizuguchi
IPC分类号： H03M178
CPC分类号： H03M1/685 , H03M1/142 , H03M1/365 , H03M1/765
摘要： A reference voltage generator circuit generates a stable reference voltage that may be used by other circuits, such as an A/D converter and a D/A converter. The reference voltage generator circuit includes a rough resistor bank having a pair of first resistors connected in series between a low potential reference voltage and a high potential reference voltage. A first fine resistor bank is connected in shunt with one of the resistors in the rough resistor bank and a second fine resistor bank is also connected in shunt with the same resistor in the rough resistor bank. Switches are connected between nodes between the resistors in the fine resistor banks and another circuit or system, such as an A/D converter.
摘要翻译：参考电压发生器电路产生可由诸如A / D转换器和D / A转换器的其它电路使用的稳定参考电压。参考电压发生器电路包括具有串联连接在低电位参考电压和高电位参考电压之间的一对第一电阻器的粗略电阻器组。第一个精细电阻组与粗略电阻组中的一个电阻分流连接，另一个精细电阻组也与粗电阻组中的同一个电阻分流连接。开关连接在精细电阻器组中的电阻器和另一个电路或系统（例如A / D转换器）之间的节点之间。

12. 发明授权

US08477384B2 Solid-state image pickup device and image pickup method 有权
标题翻译：固态图像拾取装置和图像拾取方法
公开(公告)号：US08477384B2
公开(公告)日：2013-07-02
申请号：US12211613
申请日：2008-09-16
申请人： Toshitaka Mizuguchi , Katsuyoshi Yamamoto , Jun Funakoshi , Tsuyoshi Higuchi
发明人： Toshitaka Mizuguchi , Katsuyoshi Yamamoto , Jun Funakoshi , Tsuyoshi Higuchi
IPC分类号： H04N1/40
CPC分类号： H01L27/14623 , H01L27/14603 , H04N5/361 , H04N5/378
摘要： 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.
摘要翻译：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。

13. 发明授权

US07477299B2 Imaging device 失效
标题翻译：成像设备
公开(公告)号：US07477299B2
公开(公告)日：2009-01-13
申请号：US11133386
申请日：2005-05-20
申请人： Tsuyoshi Higuchi , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Katsuyoshi Yamamoto
发明人： Tsuyoshi Higuchi , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Katsuyoshi Yamamoto
IPC分类号： H04N5/217 , H04N3/14
CPC分类号： H04N5/3598 , H03F3/087 , H04N5/3575 , H04N5/363
摘要： A second source follower circuit of a reference voltage generator includes a transistor having the same characteristics as a first source follower circuit of a pixel. Accordingly, the second source follower circuit can generate a second reference voltage according to the change in characteristics of the first source follower circuit. A noise voltage switching circuit outputs a first voltage as a noise voltage to a pixel signal generator when the noise voltage is equal to or lower than the second reference voltage. In a reset state, the noise voltage and the second reference voltage always have a predetermined voltage difference. Therefore, deterioration in image quality can be prevented even when capturing a subject having high brightness. Since a trimming circuit or the like selecting any one of a plurality of reference voltages according to characteristics of a formed transistor becomes unnecessary, the cost of an imaging device can be reduced.
摘要翻译：参考电压发生器的第二源极跟随器电路包括具有与像素的第一源极跟随器电路相同的特性的晶体管。因此，第二源极跟随器电路可以根据第一源极跟随器电路的特性的变化产生第二参考电压。当噪声电压等于或低于第二参考电压时，噪声电压切换电路将作为噪声电压的第一电压输出到像素信号发生器。在复位状态下，噪声电压和第二参考电压总是具有预定的电压差。因此，即使在拍摄具有高亮度的被摄体的情况下也能够防止图像质量的劣化。由于不需要根据形成的晶体管的特性选择多个参考电压中的任何一个的微调电路等，因此可以降低成像装置的成本。

14. 发明授权

US07301487B2 Image sensor capable of cancelling offset voltage of semiconductor device included therein 失效
标题翻译：能够消除其中包含的半导体器件的偏移电压的图像传感器
公开(公告)号：US07301487B2
公开(公告)日：2007-11-27
申请号：US11429158
申请日：2006-05-08
申请人： Jun Funakoshi , Toshitaka Mizuguchi , Tsuyoshi Higuchi , Katsuyoshi Yamamoto
发明人： Jun Funakoshi , Toshitaka Mizuguchi , Tsuyoshi Higuchi , Katsuyoshi Yamamoto
IPC分类号： H03M1/00
CPC分类号： H03M1/0607 , H04N5/3575 , H04N5/3742 , H04N5/378
摘要： An image sensor includes: a pixel unit that outputs a first signal including an offset voltage inherent to a pixel; a CDS unit that performs correlated double sampling of a second signal that is obtained from the first signal by canceling the offset voltage inherent to the pixel, and outputs the second signal after the correlated double sampling as a third signal including an offset voltage due to the CDS unit; and an ADC unit that performs analog-to-digital conversion of a fourth signal that is obtained from the third signal by canceling the offset voltage due to the CDS unit.
摘要翻译：图像传感器包括：像素单元，输出包括像素固有的偏移电压的第一信号; CDS单元，通过消除像素固有的偏移电压来执行从第一信号获得的第二信号的相关双采样，并将相关双采样之后的第二信号作为第三信号输出，该第三信号包括由于 CDS单位; 以及ADC单元，其通过消除由于CDS单元引起的偏移电压来执行从第三信号获得的第四信号的模数转换。

15. 发明授权

US07218166B2 Current stabilization circuit, current stabilization method, and solid-state imaging apparatus 有权
标题翻译：电流稳定电路，电流稳定方法和固态成像装置
公开(公告)号：US07218166B2
公开(公告)日：2007-05-15
申请号：US10991400
申请日：2004-11-19
申请人： Makoto Yanagisawa , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Tsuyoshi Higuchi
发明人： Makoto Yanagisawa , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Tsuyoshi Higuchi
IPC分类号： G05F1/10
CPC分类号： G05F3/262
摘要： 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.
摘要翻译：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。

16. 发明申请

US20060170795A1 Data read circuit of solid-state imaging device, imaging apparatus, and data read method for solid-state imaging device 失效
公开(公告)号：US20060170795A1
公开(公告)日：2006-08-03
申请号：US11138483
申请日：2005-05-27
申请人： Tsuyoshi Higuchi , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Katsuyoshi Yamamoto
发明人： Tsuyoshi Higuchi , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Katsuyoshi Yamamoto
IPC分类号： H04N5/217
CPC分类号： H04N5/3575 , H04N5/378
摘要： A differential amplifier has a first input terminal to which a voltage of a noise signal of the solid-state imaging device is supplied and a second input terminal to which a voltage of a temporary data signal having the noise signal of the solid-state imaging device superposed thereon is supplied. The differential amplifier inverts an output signal when a magnitude relationship in voltage between the first and second input terminals becomes reverse. A measurement circuit measures a variation amount of a voltage of the second input terminal from when the voltage of the second input terminal begins to vary in a direction to reverse the magnitude relationship to when the output signal of the differential amplifier is inverted, and outputs a measurement result as a digital value indicating a voltage of a real data signal obtained by removing the noise signal from the temporary data signal.

17. 发明申请

US20060001564A1 Ramp waveform generation circuit, analog/digital conversion circuit, imaging device and control method of imaging device 失效
标题翻译：斜坡波形发生电路，模拟/数字转换电路，成像装置和成像装置的控制方法
公开(公告)号：US20060001564A1
公开(公告)日：2006-01-05
申请号：US10998728
申请日：2004-11-30
申请人： Seiji Yamagata , Jun Funakoshi , Tsuyoshi Higuchi , Toshitaka Mizuguchi
发明人： Seiji Yamagata , Jun Funakoshi , Tsuyoshi Higuchi , Toshitaka Mizuguchi
IPC分类号： H03M1/56
CPC分类号： H03M1/0619 , H03M1/0845 , H03M1/56
摘要： A ramp waveform generation circuit which comprises a first reference power supply, and supplies a ramp waveform signal to an analog/digital conversion circuit further comprises a connection circuit for reflecting the amount of fluctuation of the output potential of a second reference power supply which is installed in a noise elimination circuit for eliminating the noise of an analog signal inputted to the analog/digital conversion circuit in the output potential of the first reference power supply.
摘要翻译：包括第一参考电源并将斜坡波形信号提供给模拟/数字转换电路的斜坡波形产生电路还包括连接电路，用于反映安装的第二参考电源的输出电位的波动量在噪声消除电路中，用于消除在第一参考电源的输出电位中输入到模拟/数字转换电路的模拟信号的噪声。

18. 发明授权

US08111309B2 Solid-state image pickup device and signal processing method using solid-state image pickup device 有权
标题翻译：固态图像拾取装置和使用固态图像拾取装置的信号处理方法
公开(公告)号：US08111309B2
公开(公告)日：2012-02-07
申请号：US12130344
申请日：2008-05-30
申请人： Toshitaka Mizuguchi , Tsuyoshi Higuchi
发明人： Toshitaka Mizuguchi , Tsuyoshi Higuchi
IPC分类号： H04N3/14 , H04N5/335
CPC分类号： H04N5/347 , H04N5/361 , H04N5/3765
摘要： A solid-state image pickup device having a reduced signal transfer time and a signal processing method using the solid-state image pickup device. A pixel array includes a plurality of light-receiving pixel elements and a plurality of light-blocked pixel elements. A read block reads the output signals of the plurality of light-blocked pixel elements. An AD conversion processing block includes a circuit for summing up the output signals of adjacent light-blocked pixel elements and transferring the signals of the light-blocked pixel elements in a reduced period.
摘要翻译：具有减小的信号传送时间的固态图像拾取装置和使用固态图像拾取装置的信号处理方法。像素阵列包括多个光接收像素元件和多个遮光像素元件。读取块读取多个光阻像素元件的输出信号。 AD转换处理块包括用于对相邻的光阻挡像素元件的输出信号进行求和并在减少的周期内传送光阻像素元件的信号的电路。

19. 发明授权

US07639290B2 Data read circuit of solid-state imaging device, imaging apparatus, and data read method for solid-state imaging device 失效
标题翻译：固态成像装置的数据读取电路，成像装置和固态成像装置的数据读取方法
公开(公告)号：US07639290B2
公开(公告)日：2009-12-29
申请号：US11138483
申请日：2005-05-27
申请人： Tsuyoshi Higuchi , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Katsuyoshi Yamamoto
发明人： Tsuyoshi Higuchi , Jun Funakoshi , Seiji Yamagata , Toshitaka Mizuguchi , Katsuyoshi Yamamoto
IPC分类号： H04N9/64
CPC分类号： H04N5/3575 , H04N5/378
摘要： A differential amplifier has a first input terminal to which a voltage of a noise signal of the solid-state imaging device is supplied and a second input terminal to which a voltage of a temporary data signal having the noise signal of the solid-state imaging device superposed thereon is supplied. The differential amplifier inverts an output signal when a magnitude relationship in voltage between the first and second input terminals becomes reverse. A measurement circuit measures a variation amount of a voltage of the second input terminal from when the voltage of the second input terminal begins to vary in a direction to reverse the magnitude relationship to when the output signal of the differential amplifier is inverted, and outputs a measurement result as a digital value indicating a voltage of a real data signal obtained by removing the noise signal from the temporary data signal.
摘要翻译：差分放大器具有第一输入端，固态成像器件的噪声信号的电压被提供给该第一输入端;第二输入端，具有固态成像器件的噪声信号的临时数据信号的电压叠加在其上。当第一和第二输入端之间的电压的大小关系变为反相时，差分放大器反转输出信号。测量电路测量第二输入端子的电压从第二输入端子的电压开始变化的方向的变化量，以使得与差分放大器的输出信号反相时的幅度关系相反，测量结果作为数字值，指示通过从临时数据信号中去除噪声信号而获得的实际数据信号的电压。

20. 发明申请

US20090009822A1 Solid-State Image Pickup Device and Image Pickup Method 有权
标题翻译：固态图像拾取装置和图像拾取方法
公开(公告)号：US20090009822A1
公开(公告)日：2009-01-08
申请号：US12211613
申请日：2008-09-16
申请人： Toshitaka MIZUGUCHI , Katsuyoshi Yamamoto , Jun Funakoshi , Tsuyoshi Higuchi
发明人： Toshitaka MIZUGUCHI , Katsuyoshi Yamamoto , Jun Funakoshi , Tsuyoshi Higuchi
IPC分类号： H04N1/40
CPC分类号： H01L27/14623 , H01L27/14603 , H04N5/361 , H04N5/378
摘要： 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.
摘要翻译：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。

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