公开(公告)号：US20110254986A1

公开(公告)日：2011-10-20

申请号：US13167345

申请日：2011-06-23

申请人： Kazuko Nishimura ,  Makoto Ikuma ,  Yutaka Abe

发明人： Kazuko Nishimura ,  Makoto Ikuma ,  Yutaka Abe

IPC分类号： H04N5/335 ,  H01L25/00 ,  H03M1/12

CPC分类号： H04N5/37455 ,  H01L27/146 ,  H03K5/24 ,  H03K5/2481 ,  H03M1/123 ,  H03M1/56 ,  H04N5/3745

摘要： An analog-digital converter includes n comparators arranged in a first direction with a predetermined cell pitch and corresponding respectively to n input voltages, each comparator comparing a voltage value of a reference signal whose voltage value increases or decreases over time with an input voltage corresponding to the comparator. Each of the n comparators includes differential transistors to which the reference signal and the input voltage are given respectively. A differential transistor is formed by p unit transistors connected in series whose gates are given the reference signal, and another differential transistor is formed by p unit transistors connected in series whose gates are given the input voltage.

摘要翻译： 模拟数字转换器包括n个比较器，它们以预定的单元间距排列在第一方向上，分别对应于n个输入电压，每个比较器比较其电压值随时间增加或减小的参考信号的电压值与对应于 比较器。 n个比较器中的每一个包括分别给出参考信号和输入电压的差分晶体管。 差分晶体管由串联连接的p单位晶体管形成，栅极被赋予参考信号，另一个差分晶体管由串联连接的p单位晶体管形成，栅极被赋予输入电压。

公开(公告)号：US20110019039A1

公开(公告)日：2011-01-27

申请号：US12838892

申请日：2010-07-19

申请人： Makoto IKUMA ,  Yutaka ABE

发明人： Makoto IKUMA ,  Yutaka ABE

IPC分类号： H04N9/64

CPC分类号： H04N5/357 ,  H04N5/361 ,  H04N5/3658 ,  H04N5/3742

摘要： Specifically, the solid-state imaging device includes: pixels each of which includes an amplifying transistor that amplifies a signal; first column signal lines each of which is connected to one of the columns of the pixels; first load transistors each of which is connected to one of the first column signal lines; a bias circuit which supplies a bias voltage to a gate of each of the first load transistors; first detection units each of which is connected to the one of the first column signal lines; a second detection unit which detects a noise component of each of the rows, the noise component occurring in each of the first column signal lines and resulting from fluctuation in the bias voltage; and a correction unit which corrects, the pixel signal detected by each of the first detection units, using the noise component detected by the second detection unit.

摘要翻译： 具体地，固态成像装置包括：各自包括放大信号的放大晶体管的像素; 第一列信号线，其每一个连接到像素的列之一; 第一负载晶体管，其每一个连接到第一列信号线之一; 偏置电路，其向每个第一负载晶体管的栅极提供偏置电压; 第一检测单元，其每一个连接到第一列信号线之一; 第二检测单元，其检测每行的噪声分量，在每个第一列信号线中出现的噪声分量，并由偏置电压的波动引起; 以及校正单元，其使用由第二检测单元检测到的噪声分量来校正由每个第一检测单元检测的像素信号。

公开(公告)号：US08754973B2

公开(公告)日：2014-06-17

申请号：US13591989

申请日：2012-08-22

申请人： Makoto Ikuma ,  Yutaka Abe

发明人： Makoto Ikuma ,  Yutaka Abe

IPC分类号： H04N3/14

CPC分类号： H04N5/3575 ,  H04N5/3745 ,  H04N5/378

摘要： A solid-state imaging device includes unit pixels arranged in rows and columns, and reads a pixel signal from the unit pixels selected for each of the rows. The device includes: column signal lines provided for the columns of the unit pixels; amplifying transistors included in the unit pixels and each outputting the pixel signal; correlated double sampling units provided for the columns of the unit pixels and each performing correlated double sampling on a reset component of the pixel signal and on a data component including the reset component and a signal component of the pixel signal so as to sample the signal component; and low-pass filters each (i) inserted in the column signal line between an output terminal of the amplifying transistor and the correlated double sampling unit or (ii) included in the correlated double sampling unit.

摘要翻译： 固态成像装置包括以行和列排列的单位像素，并从针对每一行选择的单位像素读取像素信号。 该装置包括：为单位像素的列提供的列信号线; 放大单位像素中包含的晶体管，并输出像素信号; 提供给单位像素的列的相关双采样单元，并且每个对像素信号的复位分量执行相关双采样，以及对包括复位分量的数据分量和像素信号的信号分量进行采样，以对信号分量 ; 以及插入在放大晶体管的输出端子和相关双采样单元之间的列信号线中的（i）的低通滤波器或包括在相关双采样单元中的（ii）。

公开(公告)号：US08520107B2

公开(公告)日：2013-08-27

申请号：US13167345

申请日：2011-06-23

申请人： Kazuko Nishimura ,  Makoto Ikuma ,  Yutaka Abe

发明人： Kazuko Nishimura ,  Makoto Ikuma ,  Yutaka Abe

IPC分类号： H04N3/14 ,  H04N5/217

CPC分类号： H04N5/37455 ,  H01L27/146 ,  H03K5/24 ,  H03K5/2481 ,  H03M1/123 ,  H03M1/56 ,  H04N5/3745

摘要： An analog-digital converter includes n comparators arranged in a first direction with a predetermined cell pitch and corresponding respectively to n input voltages, each comparator comparing a voltage value of a reference signal whose voltage value increases or decreases over time with an input voltage corresponding to the comparator. Each of the n comparators includes differential transistors to which the reference signal and the input voltage are given respectively. A differential transistor is formed by p unit transistors connected in series whose gates are given the reference signal, and another differential transistor is formed by p unit transistors connected in series whose gates are given the input voltage.

摘要翻译： 模拟数字转换器包括n个比较器，它们以预定的单元间距排列在第一方向上，分别对应于n个输入电压，每个比较器比较其电压值随时间增加或减小的参考信号的电压值与对应于 比较器。 n个比较器中的每一个包括分别给出参考信号和输入电压的差分晶体管。 差分晶体管由串联连接的p单位晶体管形成，栅极被赋予参考信号，另一个差分晶体管由串联连接的p单位晶体管形成，栅极被赋予输入电压。

公开(公告)号：US20120320246A1

公开(公告)日：2012-12-20

申请号：US13591989

申请日：2012-08-22

申请人： Makoto IKUMA ,  Yutaka Abe

发明人： Makoto IKUMA ,  Yutaka Abe

IPC分类号： H01L27/146 ,  H04N5/335

CPC分类号： H04N5/3575 ,  H04N5/3745 ,  H04N5/378

摘要： A solid-state imaging device includes unit pixels arranged in rows and columns, and reads a pixel signal from the unit pixels selected for each of the rows. The device includes: column signal lines provided for the columns of the unit pixels; amplifying transistors included in the unit pixels and each outputting the pixel signal; correlated double sampling units provided for the columns of the unit pixels and each performing correlated double sampling on a reset component of the pixel signal and on a data component including the reset component and a signal component of the pixel signal so as to sample the signal component; and low-pass filters each (i) inserted in the column signal line between an output terminal of the amplifying transistor and the correlated double sampling unit or (ii) included in the correlated double sampling unit.

摘要翻译： 固态成像装置包括以行和列排列的单位像素，并从针对每一行选择的单位像素读取像素信号。 该装置包括：为单位像素的列提供的列信号线; 放大单位像素中包含的晶体管，并输出像素信号; 提供给单位像素的列的相关双采样单元，并且每个对像素信号的复位分量执行相关双采样，以及对包括复位分量的数据分量和像素信号的信号分量进行采样，以对信号分量 ; 以及插入在放大晶体管的输出端子和相关双采样单元之间的列信号线中的（i）的低通滤波器或包括在相关双采样单元中的（ii）。

公开(公告)号：US20060066759A1

公开(公告)日：2006-03-30

申请号：US11230894

申请日：2005-09-21

申请人： Makoto Ikuma ,  Yasuo Oba

发明人： Makoto Ikuma ,  Yasuo Oba

IPC分类号： H04N5/50 ,  H04B1/18

CPC分类号： H04N5/4446 ,  H04N5/455 ,  H04N5/50

摘要： An automatic frequency tuning system according to the present invention includes an antenna, a tuner circuit, a video SAW filter, a video intermediate frequency amplifier, a video detector, a video amplifier, a video PLL circuit, an AFT control circuit, a microcomputer and a memory. In addition to the above members, the automatic frequency tuning system further includes a reference PLL circuit for reducing variation in a free running frequency of a video voltage controlled oscillator, a comparator for determining a magnitude relationship between a received video frequency and a standard video frequency, a mixer for mixing an output signal of the video control frequency and an output signal of a reference voltage controlled oscillator and retrieving sum and difference signals for frequencies of the outputs, and a mixer low pass filter for supplying only a frequency difference signal to a subsequent stage.

摘要翻译： 根据本发明的自动频率调谐系统包括天线，调谐器电路，视频SAW滤波器，视频中频放大器，视频检测器，视频放大器，视频PLL电路，AFT控制电路，微计算机和 一个记忆 除了上述部件之外，自动频率调谐系统还包括用于减小视频压控振荡器的自由运行频率变化的参考PLL电路，用于确定接收视频和标准视频之间的幅度关系的比较器 混频器，用于混合视频控制频率的输出信号和参考压控振荡器的输出信号，并且检索输出频率的和和差分信号;以及混频器低通滤波器，用于仅将频差信号提供给 后续阶段

公开(公告)号：US20070146550A1

公开(公告)日：2007-06-28

申请号：US11614292

申请日：2006-12-21

申请人： Makoto IKUMA ,  Yasuo OBA ,  Sachiko MORI

发明人： Makoto IKUMA ,  Yasuo OBA ,  Sachiko MORI

IPC分类号： H04N5/455

CPC分类号： H04N5/50 ,  H03J7/04 ,  H04N21/4383

摘要： Provided is a receiving circuit which determines whether a PLL circuit is at a locked state or a unlocked state, and thereby realizing an AFT system that operates correctly. The receiving circuit is a video/audio signal processing circuit which demodulates the first signal and the second signal included in a signal received from a tuner circuit. The video/audio signal processing circuit includes: a PLL circuit which generates a synchronizing signal synchronized with a phase of the received signal; a video demodulator which demodulates a signal including the first signal from the received signal, using the generated synchronizing signal; a second demodulator which demodulates the second signal from the received signal; and a lock detection circuit which determines whether the PLL circuit is at a locked state or an unlocked state by judging whether or not a frequency of the demodulated second signal is a predetermined value, and then outputs a lock detection signal representing the determination result to the PLL circuit. The PLL circuit changes a response speed of the phase synchronization based on the lock detection signal.

摘要翻译： 提供一种接收电路，其确定PLL电路是处于锁定状态还是处于解锁状态，从而实现正确操作的AFT系统。 接收电路是对从调谐器电路接收的信号中包含的第一信号和第二信号进行解调的视频/音频信号处理电路。 视频/音频信号处理电路包括：PLL电路，其生成与接收信号的相位同步的同步信号; 视频解调器，使用所产生的同步信号来解调来自接收信号的包括第一信号的信号; 第二解调器，其从接收信号中解调第二信号; 以及锁定检测电路，通过判断解调的第二信号的频率是否是预定值来确定PLL电路是处于锁定状态还是处于解锁状态，然后将表示确定结果的锁定检测信号输出到 PLL电路。 PLL电路根据锁定检测信号改变相位同步的响应速度。

公开(公告)号：US20100302422A1

公开(公告)日：2010-12-02

申请号：US12787606

申请日：2010-05-26

申请人： Makoto IKUMA

发明人： Makoto IKUMA

IPC分类号： H04N5/335

CPC分类号： H04N5/378 ,  H04N5/357 ,  H04N5/374

摘要： A high image quality solid-state imaging device that reduces horizontal noise is provided. An embodiment of the solid-state imaging device of the present invention is a solid-state imaging device which reads a pixel signal from each of unit pixels selected on a row basis, including amplifying transistors each of which is arranged in a corresponding one of the unit pixels, first transistors each of which is arranged on a column basis and supplies bias current to one of the amplifying transistors corresponding to a selected row, an active transistor which generates a reference bias voltage, a bias signal line through which the reference bias voltage is supplied from the gate terminal of the active transistor to gate terminals of the first transistors; and a low-pass filter inserted to the bias signal line between the gate terminal of the active transistor and the gate terminals of the first transistors.

摘要翻译： 提供了降低水平噪声的高图像质量的固态成像装置。 本发明的固态成像装置的一个实施例是一种固态成像装置，其从行中选择的每个单位像素读取像素信号，包括放大晶体管，每个放大晶体管布置在相应的一个 单位像素，每个晶体管以列为单位布置，并且将偏置电流提供给对应于所选行的放大晶体管之一，产生参考偏置电压的有源晶体管，偏置信号线，参考偏置电压 从有源晶体管的栅极端子提供到第一晶体管的栅极端子; 以及插入到有源晶体管的栅极端子和第一晶体管的栅极端子之间的偏置信号线的低通滤波器。

公开(公告)号：US07528659B2

公开(公告)日：2009-05-05

申请号：US11963944

申请日：2007-12-24

申请人： Akio Yokoyama ,  Makoto Ikuma

发明人： Akio Yokoyama ,  Makoto Ikuma

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45659 ,  H03F2203/45008 ,  H03F2203/45681

摘要： An auxiliary current source is provided that includes MOS transistors feeding startup auxiliary current to the input portion of an output common mode voltage generation circuit amplifying the output of a differential amplifier and generating an output common voltage, and a correction current source is provided that includes MOS transistors feeding correction current corresponding to the auxiliary current to a common mode feedback comparator. Thereby, a control loop that controls the output common voltage to a predetermined voltage even when the input of the differential amplifier is outside the dynamic range at the beginning is correctly started up, thereby stabilizing the output common voltage at a desired voltage.

摘要翻译： 提供辅助电流源，其包括MOS晶体管，其将启动辅助电流馈送到放大差分放大器的输出并产生输出公共电压的输出共模电压产生电路的输入部分，并且提供包括MOS的校正电流源 晶体管馈送对应于辅助电流的校正电流到共模反馈比较器。 因此，即使在差分放大器的输入在开始的动态范围之外的情况下，也可以正确启动将输出公共电压控制为预定电压的控制回路，从而将输出公共电压稳定在期望的电压。

公开(公告)号：US20080157873A1

公开(公告)日：2008-07-03

申请号：US11963944

申请日：2007-12-24

申请人： Akio Yokoyama ,  Makoto Ikuma

发明人： Akio Yokoyama ,  Makoto Ikuma

IPC分类号： H03F3/45

CPC分类号： H03F3/45183 ,  H03F3/45659 ,  H03F2203/45008 ,  H03F2203/45681

摘要： An auxiliary current source is provided that includes MOS transistors feeding startup auxiliary current to the input portion of an output common mode voltage generation circuit amplifying the output of a differential amplifier and generating an output common voltage, and a correction current source is provided that includes MOS transistors feeding correction current corresponding to the auxiliary current to a common mode feedback comparator. Thereby, a control loop that controls the output common voltage to a predetermined voltage even when the input of the differential amplifier is outside the dynamic range at the beginning is correctly started up, thereby stabilizing the output common voltage at a desired voltage.

摘要翻译： 提供辅助电流源，其包括MOS晶体管，其将启动辅助电流馈送到放大差分放大器的输出并产生输出公共电压的输出共模电压产生电路的输入部分，并且提供包括MOS的校正电流源 晶体管馈送对应于辅助电流的校正电流到共模反馈比较器。 因此，即使在差分放大器的输入在开始的动态范围之外的情况下，也可以正确启动将输出公共电压控制为预定电压的控制回路，从而将输出公共电压稳定在期望的电压。