公开(公告)号：US08278613B2

公开(公告)日：2012-10-02

申请号：US12370945

申请日：2009-02-13

申请人： Akira Okita ,  Takamasa Sakuragi ,  Satoshi Suzuki

发明人： Akira Okita ,  Takamasa Sakuragi ,  Satoshi Suzuki

IPC分类号： H03F3/08

CPC分类号： H03F3/082 ,  H03F3/45183 ,  H03F2203/45356 ,  H03F2203/45392 ,  H03F2203/45702 ,  H03F2203/45722

摘要： An image sensing apparatus having a pixel array with a plurality of pixels, comprises an amplification unit, wherein the amplification unit amplifies a difference-voltage between a voltage level input corresponding to signals output from the pixel array and a reference voltage level, outputs a non-inverted output signal to a first output signal line, and outputs an inverted output signal to a second output signal line and a switch short-circuiting the first output signal line and the second output signal line in response to a reset signal.

摘要翻译： 一种具有多个像素的像素阵列的图像感测装置，包括放大单元，其中放大单元放大与从像素阵列输出的信号相对应的电压电平输入与基准电压电平之间的差分电压， 反相输出信号输出到第一输出信号线，并且将反相输出信号输出到第二输出信号线，以及响应于复位信号使第一输出信号线和第二输出信号线短路的开关。

公开(公告)号：US20090218477A1

公开(公告)日：2009-09-03

申请号：US12370945

申请日：2009-02-13

申请人： Akira Okita ,  Takamasa Sakuragi ,  Satoshi Suzuki

发明人： Akira Okita ,  Takamasa Sakuragi ,  Satoshi Suzuki

IPC分类号： H03F3/08

CPC分类号： H03F3/082 ,  H03F3/45183 ,  H03F2203/45356 ,  H03F2203/45392 ,  H03F2203/45702 ,  H03F2203/45722

摘要： An image sensing apparatus having a pixel array with a plurality of pixels, comprises an amplification unit, wherein the amplification unit amplifies a difference-voltage between a voltage level input corresponding to signals output from the pixel array and a reference voltage level, outputs a non-inverted output signal to a first output signal line, and outputs an inverted output signal to a second output signal line and a switch short-circuiting the first output signal line and the second output signal line in response to a reset signal.

摘要翻译： 一种具有多个像素的像素阵列的图像感测装置，包括放大单元，其中放大单元放大与从像素阵列输出的信号相对应的电压电平输入与参考电压电平之间的差分电压， 反相输出信号输出到第一输出信号线，并且将反相输出信号输出到第二输出信号线，以及响应于复位信号使第一输出信号线和第二输出信号线短路的开关。

公开(公告)号：US07030922B2

公开(公告)日：2006-04-18

申请号：US10194281

申请日：2002-07-15

申请人： Takamasa Sakuragi

发明人： Takamasa Sakuragi

IPC分类号： H04N3/14 ,  H04N3/335

CPC分类号： H04N5/378 ,  H04N5/3653 ,  H04N5/374

摘要： An image pickup apparatus includes a plurality of sensor cells each including a photoelectric conversion element, an amplifier transistor which amplifies and outputs a signal from the photoelectric conversion element, and a selector transistor for selectively outputting a signal from the amplifier transistor, and a driving circuit which supplies a predetermined voltage to the transistor so as to change the amplifier transistor to an OFF state or an accumulation state before the amplifier transistor outputs a signal generated in the photoelectric conversion element.

摘要翻译： 一种图像拾取装置包括多个传感器单元，每个传感器单元包括光电转换元件，放大并输出来自光电转换元件的信号的放大器晶体管，以及用于选择性地输出来自放大器晶体管的信号的选择晶体管，以及驱动电路 其向晶体管提供预定电压，以便在放大器晶体管输出在光电转换元件中产生的信号之前将放大器晶体管改变为截止状态或累积状态。

公开(公告)号：US06903771B2

公开(公告)日：2005-06-07

申请号：US09793914

申请日：2001-02-28

申请人： Takamasa Sakuragi

发明人： Takamasa Sakuragi

IPC分类号： H04N5/357 ,  H04N5/365 ,  H04N5/374 ,  H04N5/378 ,  H04N3/14 ,  H04N5/335

CPC分类号： H04N5/32 ,  H04N5/3575 ,  H04N5/365 ,  H04N5/3742 ,  H04N5/378

摘要： Disclosed is an image pickup apparatus, which comprises a two-dimensional image pickup area, a vertical line selector for selecting a reading row in said image pickup area, a plurality of vertical signal lines arranged in columnar direction, for reading a detection signal emitted by a photodiode located in a selected row, and a horizontal selection transistor for continuously reading detection signals carried by the vertical signal lines and writing the signals to a horizontal signal line arranged like a row in a matrix, wherein a noise canceling circuit that employs a capacitor to suppress noise that appears on the vertical signal lines is provided between the vertical signal lines and the horizontal selection transistor, wherein an impedance conversion unit is provided between the vertical signal lines and the capacitor of the noise canceling circuit, and wherein a constant current element for supplying a bias current and a switch for changing the output current of a constant current element are provided to the impedance conversion unit.

摘要翻译： 公开了一种图像拾取装置，其包括二维图像拾取区域，用于选择所述图像拾取区域中的读取行的垂直线选择器，以柱状方向布置的多个垂直信号线，用于读取由 位于选定行中的光电二极管，以及用于连续读取由垂直信号线承载的检测信号并将信号写入矩阵中排列成行的水平信号线的水平选择晶体管，其中采用电容器 在垂直信号线和水平选择晶体管之间设置抑制在垂直信号线上出现的噪声，其中在垂直信号线和噪声消除电路的电容器之间设置阻抗转换单元，其中恒定电流元件 用于提供偏置电流和用于改变恒定电流的输出电流的开关 元件被提供给阻抗转换单元。

公开(公告)号：US06542105B2

公开(公告)日：2003-04-01

申请号：US10013863

申请日：2001-12-13

申请人： Takamasa Sakuragi

发明人： Takamasa Sakuragi

IPC分类号： H03M134

CPC分类号： H03M1/16 ,  H03M1/56

摘要： An A/D converter including a counter for counting a clock signal to output a digital signal corresponding to an analog input signal; a D/A converter for converting the output signal of the counter into an analog signal; a comparator for comparing the analog input signal with the output signal of the D/A converter to control the counter in accordance with the comparison result; and a clock supply circuit for supplying the counter with the clock signal, wherein the frequency of the clock signal is changed in accordance with a difference signal exhibiting the difference between the analog input signal and the output signal of the D/A converter.

公开(公告)号：US06195076B1

公开(公告)日：2001-02-27

申请号：US08825122

申请日：1997-03-27

申请人： Takamasa Sakuragi ,  Hidetoshi Suzuki

发明人： Takamasa Sakuragi ,  Hidetoshi Suzuki

IPC分类号： G09G322

CPC分类号： G09G3/22 ,  G09G3/2014 ,  G09G2310/0251 ,  G09G2310/027 ,  G09G2310/0272 ,  G09G2320/0223 ,  H01J31/127 ,  H01J2201/3165

摘要： A driving circuit and a driving method capable of uniformly outputting an electron beam at high speed from a multi-electron-beam source (50) having a plurality of cold cathode devices wired in a matrix, to provide a display apparatus having a characteristic of less unevenness in display luminance, a superior linearity in grayscale, and fast response. The electron-beam generating apparatus includes a multi-electron-beam source (50) having a plurality of cold cathode devices wired with row wiring and column wiring and arranged in a matrix form, a scanning circuit (2) connected to the row wiring, and modulation circuits (10, 20, 30) connected to the column wiring. The modulation circuits (10, 20, 30) include: a controlled current source (10) for supplying a driving current pulse to the cold cathode devices, a voltage source (20) for quickly charging parasitic capacity of the multi-electron-beam source (50), and a charging-voltage applying circuit (30) for electrically connecting the voltage source and the column wiring in synchronization with a rise of the driving current pulse.

摘要翻译： 一种驱动电路和驱动方法，其能够从具有以矩阵形式布线的多个冷阴极器件的多电子束源（50）以高速均匀地输出电子束，以提供具有较小特性的显示装置 显示亮度不均匀，灰度线性度高，响应速度快。 电子束发生装置包括：多电子束源（50），具有与行布线和列布线布线的多个冷阴极器件，以矩阵形式配置;扫描电路（2），连接到行布线; 以及连接到列布线的调制电路（10,20,30）。 调制电路（10,20,30）包括：用于向冷阴极器件提供驱动电流脉冲的受控电流源（10），用于快速地对多电子束源的寄生电容充电的电压源（20） （50），以及用于与驱动电流脉冲的上升同步地电连接电压源和列布线的充电电压施加电路（30）。

公开(公告)号：US6137356A

公开(公告)日：2000-10-24

申请号：US253782

申请日：1999-02-22

申请人： Takamasa Sakuragi

发明人： Takamasa Sakuragi

IPC分类号： H03F1/08 ,  H03G3/20

CPC分类号： H03F1/086

摘要： An operational amplifier includes an operational amplification means having a phase compensation capacitor, an active element connected in series to the phase compensation capacitor and having a variable resistance value, and a differential control means for changing the resistance value of the active element on the basis of a difference voltage between inputs to the operational amplification means, whereby stable operation and high-speed operation are realized.

摘要翻译： 运算放大器包括具有相位补偿电容器，与相位补偿电容器串联连接并具有可变电阻值的有源元件的运算放大装置，以及用于基于以下方式改变有源元件的电阻值的差分控制装置： 在操作放大装置的输入之间的差电压，从而实现稳定操作和高速操作。

公开(公告)号：US5455580A

公开(公告)日：1995-10-03

申请号：US170380

申请日：1993-12-20

申请人： Takamasa Sakuragi ,  Takahiro Shirai ,  Katsuhito Sakurai

发明人： Takamasa Sakuragi ,  Takahiro Shirai ,  Katsuhito Sakurai

IPC分类号： H03M1/74 ,  H04N5/92 ,  H03M1/66

CPC分类号： H03M1/745

摘要： A circuit device according to the present invention comprises a plurality of transistor pairs, the number of which corresponds to a quantizing bit number, each of the plurality of transistor pairs being a pair of transistors having respective control electrodes connected to each other and respective first primary electrodes connected to each other, and a connecting line arranged to connect in series a second primary electrode of one transistor of one transistor pair among the plurality of transistor pairs to first primary electrodes of another transistor pair among the plurality of transistor pairs so as to constitute a binary-weighted current source. With the above-described arrangement, it is possible to reduce an area to be occupied by the circuit device and it is also possible to miniaturize the circuit device. Further, it is possible to reduce the cost of the circuit device.

摘要翻译： 根据本发明的电路装置包括多个晶体管对，其数量对应于量化位数，多个晶体管对中的每一个是具有彼此连接的相应控制电极的一对晶体管，并且相应的第一初级 电极彼此连接，以及连接线，其布置成将多个晶体管对中的一个晶体管对的一个晶体管的第二主电极串联连接到多个晶体管对中的另一晶体管对的第一主电极，以构成 二进制加权电流源。 利用上述结构，可以减少由电路装置占用的面积，并且还可以使电路装置小型化。 此外，可以降低电路装置的成本。

公开(公告)号：US5349595A

公开(公告)日：1994-09-20

申请号：US23358

申请日：1993-02-26

申请人： Katsuhisa Ogawa ,  Takamasa Sakuragi

发明人： Katsuhisa Ogawa ,  Takamasa Sakuragi

IPC分类号： H01L33/00 ,  H01S5/042 ,  H03G1/00 ,  H05B33/08 ,  H01S3/00

CPC分类号： H05B33/0818 ,  H01S5/042 ,  H05B33/0803 ,  H01S5/0427

摘要： A drive circuit for supplying a constant drive current to the anode terminal of a semiconductor light emitting device, includes a current supply source connected to the anode terminal for supplying a bias current to the semiconductor light emitting device. Since the drive circuit is formed so as to supply the bias current to the anode terminal of the semiconductor light emitting device, a charge current for charging a conjunction capacitance can be reduced independently on the time period of turning off the semiconductor light emitting device. As a result, a spike noise can be removed in the laser current waveform at its rise-up part, and a reduction of its rise-up speed can be restricted, both of which are due to a dependent upon the time period of turning off the semiconductor device.

摘要翻译： 用于向半导体发光器件的阳极端子提供恒定驱动电流的驱动电路包括连接到阳极端子的电流源，用于向半导体发光器件提供偏置电流。 由于形成驱动电路以将偏置电流提供给半导体发光器件的阳极端子，因此可以在关闭半导体发光器件的时间段上独立地减小用于对连接电容充电的充电电流。 结果，可以在其上升部分处的激光电流波形中消除尖峰噪声，并且可以限制其上升速度的降低，这两者都是由于取决于关闭的时间段 半导体器件。

公开(公告)号：US4716305A

公开(公告)日：1987-12-29

申请号：US833616

申请日：1986-02-27

申请人： Takamasa Sakuragi ,  Ikuo Fushimi

发明人： Takamasa Sakuragi ,  Ikuo Fushimi

IPC分类号： H03K17/60 ,  H03K3/01 ,  G05F3/16 ,  H03F3/04

CPC分类号： H03K17/60

摘要： A switching device includes a current supply circuit, a control circuit, and means for feedback from the current supply circuit to the control circuit. The current supply circuit supplies current to a load. The control circuit controls operating and non-operating of the current supply circuit. When the current supply circuit is inoperative, means for feedback renders the control circuit inoperative.

摘要翻译： 开关装置包括电流供应电路，控制电路和用于从电流供应电路到控制电路的反馈的装置。 电流供应电路向负载供电。 控制电路控制电流供应电路的工作和不工作。 当电源电路不工作时，反馈装置使控制电路不起作用。