公开(公告)号：US20050140621A1

公开(公告)日：2005-06-30

申请号：US11060963

申请日：2005-02-18

申请人： Yasushi Kubota ,  Hajime Washio ,  Shigeto Yoshida

发明人： Yasushi Kubota ,  Hajime Washio ,  Shigeto Yoshida

IPC分类号： G09G3/36 ,  G11C19/28

CPC分类号： G09G3/3688 ,  G09G2310/0286 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233 ,  G11C19/28

摘要： A shift register circuit includes a plurality of latch circuits connected in series to sequentially transfer a pulse signal ST from one to another, a clock signal line transmitting a clock signal CLK, and a plurality of switching circuits performing electrical connection and disconnection between the clock signal line and the plurality of latch circuits. Upon turning on the shift register, at least one of the switching circuits electrically disconnects at least one of the latch circuits from the clock signal line. During an initialization period immediately after power has been turned on, the frequency of the clock signal CLK is lower than in a normal operation period and gradually increases toward the frequency used in the normal operation period.

公开(公告)号：US20050015235A1

公开(公告)日：2005-01-20

申请号：US10891083

申请日：2004-07-15

申请人： Kazuhiro Maeda ,  Tamotsu Sakai ,  Yasushi Kubota ,  Shigeki Imai ,  Kenshi Tada ,  Kenji Taniguchi

发明人： Kazuhiro Maeda ,  Tamotsu Sakai ,  Yasushi Kubota ,  Shigeki Imai ,  Kenshi Tada ,  Kenji Taniguchi

IPC分类号： G06F17/50 ,  H01L21/336 ,  H01L29/00 ,  H01L29/78 ,  H01L29/786

CPC分类号： G06F17/5036

摘要： A transistor model for a simulator simulates a resistance between a source region and a drain region with a model equation which has terms representing resistance values corresponding respectively to areas of mutually different impurity concentrations below a gate section in simulating characteristics of a transistor. At least two of the terms each having a threshold parameter indicating a voltage at which a semiconductor element composed of the associated region and regions adjacent to that region changes from an ON state to an OFF state. The threshold parameters of the terms being specified independently from each other. Thus, the characteristics of a transistor having a set of areas of mutually different impurity concentrations below a gate section, inclusive of subthreshold regions which are difficult to evaluate through actual measurement, can be simulated to high accuracy while preserving a good fit with a capacitance model.

摘要翻译： 用于模拟器的晶体管模型利用模拟方程来模拟源极区域和漏极区域之间的电阻，其模型方程具有表示在模拟晶体管的特性中分别对应于栅极部分的相互不同的杂质浓度的区域的电阻值的项。 每个术语中的至少两个术语具有表示由相关区域和与该区域相邻的区域组成的半导体元件的电压的阈值参数从ON状态变为OFF状态。 术语的阈值参数彼此独立地指定。 因此，通过实际测量难以评估的具有低于栅极部分的杂质浓度相互不同的杂质浓度的区域的集合的特性可以被模拟成高精度，同时保持与电容模型的良好匹配 。

公开(公告)号：US06741231B2

公开(公告)日：2004-05-25

申请号：US10198796

申请日：2002-07-17

申请人： Kenichi Katoh ,  Yasushi Kubota ,  Hidehiko Chimura ,  Jun Koyama

发明人： Kenichi Katoh ,  Yasushi Kubota ,  Hidehiko Chimura ,  Jun Koyama

IPC分类号： G09G336

CPC分类号： G09G3/3677 ,  G09G2310/0283

摘要： An active matrix display device has a number of pixels arranged in matrix form, signal lines for supplying display signals to the pixels, and a driver circuit for driving the signal lines. The driver circuit includes a frequency divider circuit for frequency-dividing input multi-phase clock signals, a synchronous counter circuit for frequency-dividing part of the input multi-phase clock signals, and a decoder circuit for selecting a desired one of the signal lines based on outputs of the frequency divider circuit and the synchronous counter circuit.

摘要翻译： 有源矩阵显示装置具有以矩阵形式布置的多个像素，用于向像素提供显示信号的信号线以及用于驱动信号线的驱动电路。 驱动器电路包括用于对输入多相时钟信号进行分频的分频器电路，用于对输入多相时钟信号的一部分进行分频的同步计数器电路，以及用于选择所需信号线的解码器电路 基于分频器电路和同步计数器电路的输出。

公开(公告)号：US06650425B2

公开(公告)日：2003-11-18

申请号：US09814510

申请日：2001-03-22

申请人： Yasushi Kubota ,  Makoto Nawa ,  Toshihiko Kurebayashi

发明人： Yasushi Kubota ,  Makoto Nawa ,  Toshihiko Kurebayashi

IPC分类号： G01B1114

CPC分类号： G01D5/28

摘要： A position measuring laser apparatus includes first and second laser transmitter-receivers and a position measure. The laser transmitter-receiver includes a laser beam emitter for emitting a laser beam, and a laser beam receiver for receiving a laser beam resulting from the emitted laser beam reflected from a reference reflecting mirror. An optical axis of the laser transmitter-receiver is oriented at a required angle toward a moving body. The position of the moving body with respect to the reference reflecting mirror is measured based on a beam receiving signal of the laser beam obtained by the laser transmitter-receiver. The position measure compares a drive signal for driving the laser beam emitter with a beam receiving signal generated by the laser beam receiver to measure the position of the moving body based on the beam receiving signal when the drive signal and the beam receiving signal coincide with each other.

摘要翻译： 位置测量激光装置包括第一和第二激光发射器 - 接收器和位置测量。 激光发射器 - 接收器包括用于发射激光束的激光束发射器和用于接收由从参考反射镜反射的发射激光束产生的激光束的激光束接收器。 激光发射器 - 接收器的光轴朝向移动体以所需的角度定向。 基于由激光发射器 - 接收器获得的激光束的光束接收信号来测量移动体相对于参考反射镜的位置。 位置测量将用于驱动激光束发射器的驱动信号与由激光束接收器产生的波束接收信号进行比较，以便当驱动信号和波束接收信号与每个信号一致时，基于波束接收信号测量移动体的位置 其他。

公开(公告)号：US06618043B2

公开(公告)日：2003-09-09

申请号：US09504418

申请日：2000-02-15

申请人： Hajime Washio ,  Yasushi Kubota ,  Yasuyoshi Kaise ,  Tamotsu Sakai ,  Kazuhiro Maeda

发明人： Hajime Washio ,  Yasushi Kubota ,  Yasuyoshi Kaise ,  Tamotsu Sakai ,  Kazuhiro Maeda

IPC分类号： G09G500

CPC分类号： G09G3/3648 ,  G09G2310/0248 ,  G09G2330/021

摘要： A precharge circuit is composed of (a) a reference signal input section, to which at least one precharge reference potential is inputted, (b) a control signal input section, to which at least one control signal is inputted, (c) a plurality of signal delay sections for sequentially delaying an output of the control signal input section, and (d) a reference signal switching section for switching, in accordance with outputs of the signal delay sections, between a state of outputting the precharge reference potential of the reference signal input section to each of the data signal lines and a state of non-outputting the same thereto. With this arrangement, the precharge control signal is sequentially delayed within the precharge circuit by the delay circuits composed of inverter circuits or the like, so that timings at which the precharge reference potential is written in the data signal lines are dispersed. By sequentially delaying the control signal within the precharge circuit, reduction of power consumption and excellent image display are realized.

公开(公告)号：US06580411B1

公开(公告)日：2003-06-17

申请号：US09300178

申请日：1999-04-27

申请人： Yasushi Kubota ,  Hajime Washio ,  Ichiro Shiraki ,  Kazuhiro Maeda ,  Yasuyoshi Kaise

发明人： Yasushi Kubota ,  Hajime Washio ,  Ichiro Shiraki ,  Kazuhiro Maeda ,  Yasuyoshi Kaise

IPC分类号： G09G336

CPC分类号： H03K3/356121 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2320/0209 ,  G09G2320/0257 ,  G09G2330/021 ,  H03K3/356139

摘要： If a clock signal ck is “H” and an input pulse signal in (first control signal) is “H”, then n-type transistors M15 and M16 are turned on to make an output node/OUT have the GND level. Then, a p-type transistor M12 is turned on to make an output node OUT have a Vcc (16 V) level. Thus, a latch circuit LAT operates as a level shifter circuit when first and second control signals and the clock signal ck are at “H” and operates as a level hold circuit in any other case. Therefore, the shift register circuit constructed of the latch circuit LAT functions as a low-voltage interface, and the input of the clock signal ck is stopped when the latch circuit LAT is inactive, so that the load and the consumption of power of the clock signal line are reduced.

摘要翻译： 如果时钟信号ck为“H”，并且（第一控制信号）中的输入脉冲信号为“H”，则n型晶体管M15和M16导通，使输出节点/ OUT具有GND电平。 然后，p型晶体管M12导​​通，使得输出节点OUT具有Vcc（16V）电平。 因此，当第一和第二控制信号和时钟信号ck处于“H”时，锁存电路LAT作为电平移位器电路工作，并且在任何其它情况下作为电平保持电路工作。 因此，由锁存电路LAT构成的移位寄存器电路用作低电压接口，并且当锁存电路LAT不活动时，时钟信号ck的输入停止，使得时钟的负载和功率的消耗 信号线减少。

公开(公告)号：US06504522B2

公开(公告)日：2003-01-07

申请号：US09088821

申请日：1998-06-02

申请人： Ichiro Shiraki ,  Yasushi Kubota ,  Tamotsu Sakai

发明人： Ichiro Shiraki ,  Yasushi Kubota ,  Tamotsu Sakai

IPC分类号： G09G320

CPC分类号： G09G3/2011 ,  G09G3/3688 ,  G09G2310/027 ,  G09G2330/021

摘要： An active-matrix-type image display device having a gray-scale power supply for generating gray-scale voltages of different levels, and a source driver that applies gray-scale voltages according to a digital picture signal to source lines and includes one scanning circuit for each source line. The outputs of the scanning circuits are sequentially made active once in a horizontal period. A latch circuit fetches the digital picture signal in synchronization with making the output of the scanning circuit active. The digital picture signal is decoded by a decoder circuit, and one of analog switches becomes a conducting state according to the decoded signal. As a result, one of the gray-scale voltages is output to the source line.

摘要翻译： 一种具有用于产生不同电平的灰度电压的灰度电源的有源矩阵型图像显示装置，以及根据数字图像信号向源极线施加灰度电压的源极驱动器，并且包括一个扫描电路 对于每个源代码行。 扫描电路的输出在水平周期中依次被激活一次。 锁存电路与使扫描电路的输出有效的同步取出数字图像信号。 数字图像信号由解码器电路解码，并且模拟开关中的一个根据解码信号变为导通状态。 结果，其中一个灰度电压被输出到源极线。

公开(公告)号：US06300927B1

公开(公告)日：2001-10-09

申请号：US08932246

申请日：1997-09-17

申请人： Yasushi Kubota ,  Kenichi Katoh ,  Jun Koyama

发明人： Yasushi Kubota ,  Kenichi Katoh ,  Jun Koyama

IPC分类号： G09G336

CPC分类号： G09G3/3648 ,  G02F1/13454 ,  G09G2300/0408 ,  G09G2310/0289

摘要： There is disclosed an active matrix liquid crystal display that receives input signals having small amplitudes and needs no externally attached level-shifting circuit. The active matrix liquid crystal display has a level-shifting circuit for amplifying various input signals, such as control signals, a clock signal, and a start pulse signal, and supplying the amplified signals to peripheral driver circuits. These peripheral driver circuits drive an active matrix circuit. The level-shifting circuit is made of a differential amplifier consisting of polysilicon TFTs. This amplifier is an analog amplifier. This level-shifting circuit is fabricated on the same substrate as the active matrix circuit and the peripheral driver circuits. If the amplitudes of the input signals are small, level-shifting operations can be performed well. Since any externally attached level-shifting circuit is dispensed with, the cost can be curtailed.

摘要翻译： 公开了一种有源矩阵液晶显示器，其接收具有小振幅的输入信号，并且不需要外部附接的电平移位电路。 有源矩阵液晶显示器具有电平移位电路，用于放大诸如控制信号，时钟信号和起始脉冲信号的各种输入信号，并将放大的信号提供给外围驱动器电路。 这些外围驱动电路驱动有源矩阵电路。 电平移位电路由由多晶硅TFT组成的差分放大器构成。 该放大器是模拟放大器。 该电平移位电路制造在与有源矩阵电路和外围驱动电路相同的衬底上。 如果输入信号的幅度较小，则可以很好地执行电平转换操作。 由于省去了任何外部附加的电平转换电路，所以可以减少成本。

公开(公告)号：US06255695B1

公开(公告)日：2001-07-03

申请号：US08936472

申请日：1997-09-18

申请人： Yasushi Kubota ,  Kenichi Katoh ,  Jun Koyama

发明人： Yasushi Kubota ,  Kenichi Katoh ,  Jun Koyama

IPC分类号： H01L310392

CPC分类号： H01L27/1222 ,  H01L27/1214 ,  H01L29/41733

摘要： In a field-effect transistor, one of the distance between a gate electrode and a source electrode and the distance between the gate electrode and a drain electrode which one distance is on a side where a signal of a high frequency is applied is made longer than the other distance on a side where a signal of a low frequency is applied.

摘要翻译： 在场效应晶体管中，使栅电极与源极之间的距离与施加高频信号的一侧之间的栅电极与漏电极之间的距离长于 施加低频信号的一侧的另一距离。

公开(公告)号：US06225866B1

公开(公告)日：2001-05-01

申请号：US09594439

申请日：2000-06-14

申请人： Yasushi Kubota ,  Ichiro Shiraki

发明人： Yasushi Kubota ,  Ichiro Shiraki

IPC分类号： H03F368

CPC分类号： G09G3/3688 ,  H03F3/345

摘要： A sampling circuit is arranged so that source voltages VDD and VEE, which are to be applied to two inverters at the latter stages in a signal path on the p-channel transistor side, are shifted to the positive side with respect to source voltages VCC and VSS that are applied to the other inverters. With such a power supply construction, video signals on the low-potential side in a video signal line are picked up by the n-channel transistor and video signals on the high-potential side are picked up by the p-channel transistor, and the resulting signals are supplied to a data signal line. This arrangement makes it possible to reduce the gate input voltage upon conduction of the sampling switch. Moreover, by shifting the levels of the source voltages as described above, it becomes possible to ensure writing and holding operations even in the case of having signals with a small amplitude. Therefore, even in the case when devices having low withstand voltage are used, no damage is caused on the circuit characteristics.

摘要翻译： 采样电路被布置成使得要施加到p沟道晶体管侧的信号路径中的后级的两个反相器的源极电压VDD和VEE相对于源极电压VCC和 VSS应用于其他逆变器。 通过这样的电源结构，视频信号线的低电位侧的视频信号由n沟道晶体管拾取，高电位侧的视频信号被p沟道晶体管拾取， 产生的信号被提供给数据信号线。 这种布置使得可以在采样开关导通时降低栅极输入电压。 此外，通过如上所述移动源电压的电平，即使在具有小幅度的信号的情况下也可以确保写入和保持操作。 因此，即使在使用耐压低的装置的情况下，也不会对电路特性造成损害。