公开(公告)号：US07289149B1

公开(公告)日：2007-10-30

申请号：US10400731

申请日：2003-03-27

申请人： Hae-Seung Lee ,  Keith Glen Fife

发明人： Hae-Seung Lee ,  Keith Glen Fife

IPC分类号： H04N5/235 ,  H04N5/228 ,  H04N3/14 ,  H04N5/335

CPC分类号： H04N5/378 ,  H03F1/26 ,  H03F3/08 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2200/372 ,  H03F2203/45028 ,  H03F2203/45134 ,  H03F2203/45138 ,  H03F2203/45302 ,  H04N5/357

摘要： A low power imaging array has a plurality of pixels wherein each pixel converts an intensity of incident light into electrical energy. An operational transconductance amplifier is utilized in conjunction with the imaging array to process the image signals from the low power imaging array. The operational transconductance amplifier includes a current mirror stage with a current mirror gain factor. The current mirror gain factor is selected based on a pixel noise level introduced by the low power imaging array such that current mirror gain factor noise introduced by the current mirror gain factor results in an overall noise level that is less than or equal to a predetermined level.

摘要翻译： 低功率成像阵列具有多个像素，其中每个像素将入射光的强度转换成电能。 结合成像阵列利用运算跨导放大器来处理来自低功率成像阵列的图像信号。 运算跨导放大器包括具有电流镜增益系数的电流镜级。 基于由低功率成像阵列引入的像素噪声电平来选择电流镜增益因子，使得由电流镜增益因子引入的电流镜增益因子噪声导致小于或等于预定电平的总噪声电平 。

公开(公告)号：US07277129B1

公开(公告)日：2007-10-02

申请号：US10284938

申请日：2002-10-31

申请人： Hae-Seung Lee

发明人： Hae-Seung Lee

IPC分类号： H04N3/14 ,  H04N5/335 ,  H04N5/217 ,  H01L27/00

CPC分类号： H04N5/357 ,  H04N5/3575 ,  H04N5/37452 ,  H04N5/378

摘要： An image sensor having a plurality of pixels, each including a sense node; an output node; a first device, connected to the sense node, producing a signal at the sense node that is proportional to incident light intensity at the pixel; at least one select node to receive a first select signal for selecting the pixel output node from the plurality of pixels; a reset device for resetting the pixel; and a sample and hold circuit including a sample node coupled to the sense node. At least one amplifier is provided, including a first input node to receive an output signal from the output node of a selected pixel and a second input node connected to a reference voltage source provided as a reference to reset a selected pixel. An amplifier output node is connected to couple an amplifier output signal to a selected pixel's sample and hold circuit.

摘要翻译： 一种具有多个像素的图像传感器，每个像素包括感测节点; 输出节点; 连接到感测节点的第一设备，在感测节点处产生与像素处的入射光强成比例的信号; 至少一个选择节点，用于接收用于从所述多个像素中选择所述像素输出节点的第一选择信号; 用于复位像素的复位装置; 以及包括耦合到感测节点的采样节点的采样和保持电路。 提供至少一个放大器，包括用于从所选择的像素的输出节点接收输出信号的第一输入节点和连接到参考电压源的第二输入节点，所述参考电压源被提供作为参考以复位所选择的像素。 连接放大器输出节点以将放大器输出信号耦合到所选像素的采样和保持电路。

公开(公告)号：US20070222483A1

公开(公告)日：2007-09-27

申请号：US11686739

申请日：2007-03-15

申请人： Hae-Seung Lee

发明人： Hae-Seung Lee

IPC分类号： G11C27/02

CPC分类号： H03H19/004 ,  G11C7/06 ,  G11C27/026 ,  H03M1/0607 ,  H03M1/403 ,  H03M1/442 ,  H03M3/356

摘要： A comparator based circuit with effective offset cancellation includes first and second amplifiers and an offset capacitor operatively connected to the first and second amplifiers. An offset voltage source generates an offset voltage. A first switch connects the offset voltage source to ground during a first time period. The first amplifier generates an output voltage in response to the first switch connecting the offset voltage source to ground during the first time period. A second switch connects the offset capacitor to ground during a second time period. The first switch disconnects the offset voltage source from ground during a third time period, and the second switch disconnects the offset capacitor from ground during the third time period.

摘要翻译： 具有有效偏移消除的基于比较器的电路包括第一和第二放大器以及可操作地连接到第一和第二放大器的偏移电容器。 偏移电压源产生偏移电压。 在第一时间段期间，第一开关将偏移电压源连接到地。 第一放大器响应于在第一时间段期间将偏移电压源连接到地的第一开关产生输出电压。 在第二时间段内，第二开关将偏移电容器接地。 第一个开关在第三个时间段内断开偏移电压源与地的连接，第二个开关在第三个时间段内将偏移电容器与地线断开。

公开(公告)号：US20070164792A1

公开(公告)日：2007-07-19

申请号：US11617213

申请日：2006-12-28

申请人： Hae-Seung Lee

发明人： Hae-Seung Lee

IPC分类号： G11C27/02

CPC分类号： G11C27/024 ,  G11C27/026

摘要： A sampled-data analog circuit uses zero-crossing detector. A waveform generator produces a plurality of segments of ramp at the output. An output of a zero crossing detector controls a sampling switch, thereby causing a precise sample of the output voltage to be taken at the instant the zero crossing detector senses the zero crossing of the input signal. The waveform generator further includes a output hold function to maintain the output voltage.

摘要翻译： 采样数据模拟电路使用过零检测器。 波形发生器在输出端产生多个斜坡段。 过零检测器的输出控制采样开关，从而在过零检测器感测输入信号的过零点的瞬间产生输出电压的精确采样。 波形发生器还包括保持输出电压的输出保持功能。

公开(公告)号：US06903670B1

公开(公告)日：2005-06-07

申请号：US10679755

申请日：2003-10-06

申请人： Hae-Seung Lee ,  Keith Glen Fife

发明人： Hae-Seung Lee ,  Keith Glen Fife

IPC分类号： H03M1/10 ,  H03M1/12 ,  H03M1/06

CPC分类号： H03M1/1038 ,  H03M1/123

摘要： A circuit and method measure the output voltage of a CMOS pixel in a manner that substantially reduces all columnar pattern noise due to mismatches in the signal processing circuits including the correlated double sampling amplifiers and A/D converters. The circuit includes a test switch, operatively connected between a reference voltage source and a correlated double sampling amplifier, for applying a test voltage from the reference voltage source when the state of the test switch is ON to the correlated double sampling amplifier. The reference voltage source produces a voltage corresponding to a full-scale voltage level to enable the determination of a gain error in the correlated double sampling amplifier and/or A/D converter; a voltage corresponding to ground to enable the determination of an offset error in the correlated double sampling amplifier and/or A/D converter; and a plurality of analog voltages ranging from analog ground to a full-scale voltage level to enable the determination of non-linearity errors in the A/D converter.

摘要翻译： 电路和方法以基本上减少由于包括相关双采样放大器和A / D转换器在内的信号处理电路中的不匹配而导致的所有柱状图案噪声的方式来测量CMOS像素的输出电压。 电路包括可操作地连接在参考电压源和相关双采样放大器之间的测试开关，用于当测试开关的状态导通到相关的双采样放大器时，从参考电压源施加测试电压。 参考电压源产生对应于满量程电压电平的电压，以便能够确定相关双采样放大器和/或A / D转换器中的增益误差; 与地相对应的电压，以确定相关双采样放大器和/或A / D转换器中的偏移误差; 以及从模拟地到满量程电压电平的多个模拟电压，以便能够确定A / D转换器中的非线性误差。

公开(公告)号：US20050046348A1

公开(公告)日：2005-03-03

申请号：US10924880

申请日：2004-08-25

申请人： Jong-Hyuk Lee ,  Hae-Seung Lee ,  Yoon-Hyeung Cho ,  Won-Jong Kim ,  Jin-Woo Park

发明人： Jong-Hyuk Lee ,  Hae-Seung Lee ,  Yoon-Hyeung Cho ,  Won-Jong Kim ,  Jin-Woo Park

IPC分类号： H05B33/04 ,  H01L51/52 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22 ,  H05B33/26

CPC分类号： H01L51/5259 ,  H01L2251/5315

摘要： Provided are an organic electroluminescent device and a method of manufacturing the same. An organic electroluminescent device, comprising a rear substrate, an organic electroluminescent unit formed on one surface of the rear substrate and having a first electrode, an organic film, and a second electrode, and a front substrate joined to the rear substrate and having a porous oxide layer based on alumina on an inner surface of the front substrate. The alumina is hydrated amorphous alumina. The porous oxide layer is composed of hydrated amorphous alumina; hydrated amorphous alumina and silica; hydrated amorphous alumina, and one or more selected from alkaline metal oxide, alkaline earth metal oxide, metal halide, metal sulfate, and metal perchlorate, which are captured in a network of the alumina; or hydrated amorphous alumina, silica, and one or more selected from alkaline metal oxide, alkaline earth metal oxide, metal halide, metal sulfate, and metal perchlorate, which are captured in a network of the alumina and a network of the silica. The organic electroluminescent device may be used as a front emission type, a rear emission type, or a both-direction emission type display.

摘要翻译： 提供一种有机电致发光器件及其制造方法。 一种有机电致发光器件，包括后衬底，形成在所述后衬底的一个表面上并具有第一电极，有机膜和第二电极的有机电致发光单元以及与所述后衬底接合并具有多孔 在前基板的内表面上的基于氧化铝的氧化物层。 氧化铝是水合无定形氧化铝。 多孔氧化物层由水合无定形氧化铝组成; 水合无定形氧化铝和二氧化硅; 水合无定形氧化铝和选自碱金属氧化物，碱土金属氧化物，金属卤化物，金属硫酸盐和金属高氯酸盐中的一种或多种，​​其被捕获在氧化铝的网络中; 或水合无定形氧化铝，二氧化硅和选自碱金属氧化物，碱土金属氧化物，金属卤化物，金属硫酸盐和金属高氯酸盐中的一种或多种，​​其被捕获在氧化铝的网络和二氧化硅的网络中。 有机电致发光器件可以用作前发射型，后发射型或双向发射型显示器。

公开(公告)号：US06777660B1

公开(公告)日：2004-08-17

申请号：US10067554

申请日：2002-02-04

申请人： Hae-Seung Lee

发明人： Hae-Seung Lee

IPC分类号： H01L2700

CPC分类号： H04N5/363 ,  H01L27/14609 ,  H01L31/02016 ,  H04N5/374

摘要： A CMOS image sensor array has rows and columns of active pixels. In addition, there are one or more column lines each cooperating with the active pixels in the respective columns. Each active pixel has an output connected to a column line. Each active pixel includes a photodiode that produces a signal proportional to incident light intensity. The proportional signal is applied to the active pixel output if the column select and row select are appropriately set. In addition, each active pixel has a reset transistor for resetting the active pixel. Each reset transistor has a gate and first and second terminals. A reset voltage is applied to the gate of each reset transistor to cause a reset. The CMOS image sensor array also has one or more amplifiers. Each amplifier has a first input connected to a different column line. Each amplifier provides a negative feedback output to the first node of each reset transistor of the active pixels for the respective cooperating column line. An reset reference voltage is applied to a second input of each amplifier to adjust the negative feedback to adjust the voltage at the second node of each reset transistor to a desired reset voltage. The second node of each reset transistor cooperates with the first input of the respective amplifier for the column.

摘要翻译： CMOS图像传感器阵列具有有源像素的行和列。 此外，存在一个或多个列线，每个列线与相应列中的有源像素配合。 每个有源像素具有连接到列线的输出。 每个有源像素包括产生与入射光强度成比例的信号的光电二极管。 如果列选择和行选择被适当设置，则比例信号被施加到有源像素输出。 此外，每个有源像素具有用于复位有源像素的复位晶体管。 每个复位晶体管具有栅极和第一和第二端子。 复位电压被施加到每个复位晶体管的栅极以引起复位。CMOS图像传感器阵列还具有一个或多个放大器。 每个放大器具有连接到不同列线的第一输入端。 每个放大器为相应协作列线的有源像素的每个复位晶体管的第一节点提供负反馈输出。 将复位参考电压施加到每个放大器的第二输入端以调整负反馈以将每个复位晶体管的第二节点处的电压调整到期望的复位电压。 每个复位晶体管的第二个节点与列的相应放大器的第一个输入端相配合。

公开(公告)号：US5434538A

公开(公告)日：1995-07-18

申请号：US122377

申请日：1993-09-16

申请人： Hae-Seung Lee ,  Paul C. Yu

发明人： Hae-Seung Lee ,  Paul C. Yu

IPC分类号： H03F3/21 ,  H03F3/347 ,  H03F3/45 ,  H03F3/68

CPC分类号： H03F3/211 ,  H03F3/347 ,  H03F3/45192 ,  H03F3/45219 ,  H03F3/45475 ,  H03F3/4595 ,  H03F2200/453 ,  H03F2200/513 ,  H03F2203/45574 ,  H03F2203/45651

摘要： A main amplifier has an enhanced gain due to current injection from a replica amplifier which has a similar structure and feedback network to that of the main amplifier. The main amplifier has a transconductance stage and an output resistance stage. A coupling transconductance stage receives the same input signal as that received by the main and replica amplifiers and injects a current to the output node of the main amplifier. The injected current is the same as the current to the output node would have been from the main amplifier's transconductance stage, were the replica amplifier not present. The gain can be obtained without a cascode and with short-channel CMOS technology that operates at a low supply voltage. The gain is increased without causing an increase in the output resistance, and without causing a decrease in the common-mode input range or the output swing.

摘要翻译： 主放大器由于来自复制放大器的电流注入而具有增强的增益，复制放大器具有与主放大器类似的结构和反馈网络。 主放大器具有跨导级和输出电阻级。 耦合跨导级接收与主放大器和复制放大器接收的相同的输入信号，并将电流注入到主放大器的输出节点。 注入电流与输出节点的电流相同，主流放大器的跨导级将不再存在复制放大器。 增益可以在没有共源共栅的情况下获得，并且可以在低电源电压下工作的短通道CMOS技术获得。 增加增益而不会导致输出电阻的增加，并且不会导致共模输入范围或输出摆幅的降低。

公开(公告)号：US5193640A

公开(公告)日：1993-03-16

申请号：US642665

申请日：1991-01-17

申请人： Hae-Seung Lee

发明人： Hae-Seung Lee

IPC分类号： B60K26/00 ,  B60K28/00 ,  B60T11/10 ,  F02D9/02 ,  F02D11/02

CPC分类号： F02D11/02 ,  B60K26/00 ,  B60T11/103 ,  B60W10/06 ,  B60W10/184 ,  B60W30/188 ,  B60W2540/10 ,  B60W2710/0605 ,  B60W2710/18 ,  F02D2009/0277 ,  F02D2009/0296 ,  Y10T477/81 ,  Y10T74/20528 ,  Y10T74/20534 ,  Y10T74/20888

摘要： A vehicle safety system for preventing unintended acceleration of motor vehicles due to the driver's pedal misapplication of depressing an accelerator instead of brakes against the driver's intention of stopping the vehicle. The system exploits the excessive pressure applied on the accelerator during a driver's pedal misapplication to reduce the engine speed and to apply the vehicle's brakes. The system is active only when excessive pressure is applied on the accelerator, and does not affect normal driving.

摘要翻译： 一种车辆安全系统，用于防止由于驾驶员踩踏加速器而不是制动而驾驶员的踏板误动作而导致机动车辆的意外加速，以抵抗驾驶员停止车辆的意图。 该系统利用驾驶员脚踏误差施加在加速器上的过大压力，以降低发动机转速并应用车辆制动。 只有当加速器上施加过大的压力时，系统才有效，不影响正常行驶。

公开(公告)号：US20150280658A1

公开(公告)日：2015-10-01

申请号：US14723044

申请日：2015-05-27

申请人： Hae-Seung Lee

发明人： Hae-Seung Lee

IPC分类号： H03F3/00

CPC分类号： H03F3/16 ,  G11C27/024 ,  H03F3/005 ,  H03F3/62 ,  H03F3/70 ,  H03F2200/156 ,  H03F2200/159 ,  H03F2200/357 ,  H03F2200/42 ,  H03H19/004 ,  H03M1/1245 ,  H03M1/468

摘要： Amplifier circuits implemented with a buffer amplifier with a voltage gain substantially equal to one. In one example, a continuous-time amplifier is implemented by applying the input source across the input and the output terminals of the buffer amplifier. In another example, a discrete-time amplifier is implemented. During the sampling phase at least one input voltage is sampled, and during the transfer phase at least one capacitor is coupled across the input and the output terminals of a buffer amplifier to effectuate an amplification.

摘要翻译： 具有电压增益基本上等于1的缓冲放大器实现的放大器电路。 在一个示例中，通过在缓冲放大器的输入端和输出端上施加输入源来实现连续时间放大器。 在另一示例中，实现了离散时间放大器。 在采样阶段期间，对至少一个输入电压进行采样，并且在传输阶段期间，至少一个电容器跨越缓冲放大器的输入端和输出端耦合以实现放大。