公开(公告)号：US20110316428A1

公开(公告)日：2011-12-29

申请号：US12861137

申请日：2010-08-23

申请人： Miao Li ,  Liqiang Zhu ,  Lieyi Fang

发明人： Miao Li ,  Liqiang Zhu ,  Lieyi Fang

IPC分类号： H05B37/02

CPC分类号： H05B41/39 ,  H05B41/282 ,  H05B41/3927 ,  Y02B20/183

摘要： System and method for adjusting brightness of one or more cold-cathode fluorescent lamps. The system includes a voltage selector configured to receive a dimming voltage and a first threshold voltage and generate an output voltage. The output voltage is selected from a group consisting of the dimming voltage and the first threshold voltage. Additionally, the system includes an oscillator coupled to a first capacitor and configured to generate a ramp signal with the first capacitor, and a signal generator configured to receive the ramp signal and the output voltage and generate a first signal. The first signal corresponds to a lamp brightness level. Moreover, the system includes a brightness detector configured to receive the first signal and output a second signal. The second signal indicates whether the lamp brightness level is higher than a threshold brightness level.

摘要翻译： 用于调节一个或多个冷阴极荧光灯的亮度的系统和方法。 该系统包括被配置为接收调光电压和第一阈值电压并产生输出电压的电压选择器。 输出电压从由调光电压和第一阈值电压组成的组中选择。 另外，该系统包括耦合到第一电容器并被配置为产生与第一电容器的斜坡信号的振荡器，以及被配置为接收斜坡信号和输出电压并产生第一信号的信号发生器。 第一个信号对应于灯的亮度级别。 此外，该系统包括配置成接收第一信号并输出​​第二信号的亮度检测器。 第二信号指示灯亮度是否高于阈值亮度级。

公开(公告)号：US08890601B2

公开(公告)日：2014-11-18

申请号：US13294928

申请日：2011-11-11

申请人： Miao Li ,  Xiaohua Kong ,  Nam V. Dang

发明人： Miao Li ,  Xiaohua Kong ,  Nam V. Dang

IPC分类号： H03B1/00 ,  H03F3/24 ,  H03F3/45 ,  H03F1/22 ,  H03F3/195

CPC分类号： H03F1/223 ,  H03F3/195 ,  H03F3/245 ,  H03F3/45085 ,  H03F3/45659 ,  H03F2203/45418 ,  H03F2203/45696 ,  H03F2203/45702 ,  H03F2203/45726

摘要： A multi-terminal output with a common mode connection includes an output having a first terminal and a second terminal and having a common mode connection between the first terminal and the second terminal. A bulk connection of a transistor is coupled to the common mode connection. A first set of control signals and a second set of control signals are generated. Each of the first set of control signals has a first rail voltage level associated with a first power domain. The second set of control signals is generated from the first set of control signals. Each of the second set of control signals has a second rail voltage level that is associated with a second power domain. The second power domain is associated with a common mode voltage of outputs of an output driver.

摘要翻译： 具有共模连接的多端子输出包括具有第一端子和第二端子的输出端，并且在第一端子和第二端子之间具有共模连接。 晶体管的体连接耦合到共模连接。 产生第一组控制信号和第二组控制信号。 第一组控制信号中的每一个具有与第一功率域相关联的第一导轨电压电平。 第二组控制信号是从第一组控制信号产生的。 第二组控制信号中的每一个具有与第二功率域相关联的第二轨电压电平。 第二功率域与输出驱动器的输出的共模电压相关联。

公开(公告)号：US08598806B2

公开(公告)日：2013-12-03

申请号：US13335092

申请日：2011-12-22

申请人： Miao Li ,  Liqiang Zhu ,  Jun Zhou ,  Lieyi Fang

发明人： Miao Li ,  Liqiang Zhu ,  Jun Zhou ,  Lieyi Fang

IPC分类号： H05B41/36

CPC分类号： H05B41/282

摘要： System and method for driving one or more cold-cathode fluorescent lamps. For example, the method includes generating at least one drive signal associated with a signal frequency, the signal frequency being equal to a first predetermined frequency, receiving a current-sensing signal, the current-sensing signal being associated with a lamp current for the one or more cold-cathode fluorescent lamps in response to at least the first predetermined frequency, and determining whether the current-sensing signal is larger than a first threshold in magnitude, the current-sensing signal being related to the first predetermined frequency. Additionally, the method includes, if the current-sensing signal related to the first predetermined frequency is determined to be larger than the first threshold in magnitude at anytime during a first period of time, changing the signal frequency from the first predetermined frequency to a second predetermined frequency, the second predetermined frequency being different from the first predetermined frequency.

摘要翻译： 用于驱动一个或多个冷阴极荧光灯的系统和方法。 例如，该方法包括产生与信号频率相关联的至少一个驱动信号，信号频率等于第一预定频率，接收电流感测信号，该电流感测信号与一个灯电流相关联 或更多个冷阴极荧光灯，并且确定电流感测信号是否大于第一阈值，电流感测信号与第一预定频率相关。 另外，如果在第一时间段内的任何时间将与第一预定频率相关的电流感测信号的幅度确定为大于第一阈值，则将该信号频率从第一预定频率改变为第二阈值 预定频率，第二预定频率不同于第一预定频率。

公开(公告)号：US20130149686A1

公开(公告)日：2013-06-13

申请号：US13818965

申请日：2011-08-25

申请人： Zhixiang Liu ,  Haifeng Yang ,  Li Yin ,  Miao Li ,  Kailong Wu ,  Xiaojun Ming ,  Chanjuan Liu ,  Zu Wang

发明人： Zhixiang Liu ,  Haifeng Yang ,  Li Yin ,  Miao Li ,  Kailong Wu ,  Xiaojun Ming ,  Chanjuan Liu ,  Zu Wang

IPC分类号： G09B5/06

CPC分类号： G09B5/06 ,  G09B7/02 ,  G09B19/00

摘要： A system comprises a finding scene constructing module, for constructing and displaying a finding scene according to a scene of different levels of difficulty, a base map matching the scene and a target to be found; a finding position processing module, for acquiring a finding position and comparing the finding position with a distribution area of the target to be found, to obtain a comparison result and judge, according to the comparison result, whether a child accurately finds the target to be found; a scoring module, for scoring according to the comparison result, counting total scores and submitting the total scores to a database for storage; an audio and video module, for providing prompts and knowledge for the child according to the comparison result; and a scene element database, for storing the scene of different levels of difficulty, the base map matching the scene, the target, and the audio and video.

摘要翻译： 一种系统，包括：寻找场景构建模块，用于根据不同难度等级的场景构建和显示寻找场景;匹配场景的基准地图;以及要找到的目标; 查找位置处理模块，用于获取查找位置并将找到位置与要发现的目标的分布区域进行比较，以获得比较结果，并根据比较结果判断一个孩子是否准确地找到目标为 发现 一个评分模块，根据比较结果得分，计算总分数，并将总分数提交到数据库进行存储; 音视频模块，用于根据比较结果为孩子提供提示和知识; 以及用于存储不同难度级别的场景的场景元素数据库，与场景，目标和音频和视频匹配的基本映射。

公开(公告)号：US20130120029A1

公开(公告)日：2013-05-16

申请号：US13294273

申请日：2011-11-11

申请人： Miao Li ,  Zhi Zhu ,  Xiaohua Kong ,  Nam V. Dang

发明人： Miao Li ,  Zhi Zhu ,  Xiaohua Kong ,  Nam V. Dang

IPC分类号： H03K3/00

CPC分类号： H03K19/018514 ,  H04L25/0272 ,  H04L25/0286

摘要： In an example, a high-speed pre-driver and voltage level converter with built-in de-emphasis for HDMI transmit applications is provided. An exemplary integrated circuit includes a serializer, a pre-driver coupled to receive a differential input from the serializer, and a driver. The pre-driver includes all-p-type metal-oxide-silicon (PMOS) cross-coupled level converter comprising four PMOS transistors and two de-emphasis PMOS transistors forming a de-emphasis tap coupled to the output of the cross-coupled level converter. The driver is coupled to the pre-driver output and is configured to receive a differential input from the pre-driver.

摘要翻译： 在一个例子中，提供了一个高速预驱动器和电压电平转换器，内置去加重HDMI传输应用。 示例性集成电路包括串行器，耦合以从串行器接收差分输入的预驱动器和驱动器。 预驱动器包括全部p型金属氧化物硅（PMOS）交叉耦合电平转换器，其包括四个PMOS晶体管和两个去加重PMOS晶体管，其形成耦合到交叉耦合电平的输出的去加重抽头 转换器。 驱动器耦合到预驱动器输出，并被配置为从前驱动器接收差分输入。

公开(公告)号：US20130082744A1

公开(公告)日：2013-04-04

申请号：US13248485

申请日：2011-09-29

申请人： Cheng Zhong ,  Vannam Dang ,  Miao Li ,  Fares K. Maarouf ,  Tirdad Sowlati

发明人： Cheng Zhong ,  Vannam Dang ,  Miao Li ,  Fares K. Maarouf ,  Tirdad Sowlati

IPC分类号： H03K3/00

CPC分类号： H04L25/0274 ,  H04L25/0278

摘要： A differential voltage mode driver for implementing symmetric single ended termination includes an output driver circuitry having a predefined termination impedance. The differential voltage mode driver also includes an output driver replica having independently controlled first and second portions. The first and second portions are independently controlled to establish a substantially equal on-resistance of the first and the second portions. The output driver replica controls the predefined termination impedance of the output driver circuitry.

摘要翻译： 用于实现对称单端终端的差分电压模式驱动器包括具有预定义的终端阻抗的输出驱动器电路。 差分电压模式驱动器还包括具有独立控制的第一和第二部分的输出驱动器副本。 独立地控制第一和第二部分以建立第一和第二部分的基本相等的导通电阻。 输出驱动器副本控制输出驱动器电路的预定终止阻抗。

公开(公告)号：US20130033287A1

公开(公告)日：2013-02-07

申请号：US13197128

申请日：2011-08-03

申请人： Miao Li ,  Nam V. Dang ,  Xiaohua Kong

发明人： Miao Li ,  Nam V. Dang ,  Xiaohua Kong

IPC分类号： H03K19/003 ,  G06F17/50

CPC分类号： H03K19/018557 ,  H04L25/0278

摘要： A balanced single-end impedance control system is disclosed. In a particular embodiment, the circuit includes a first transistor coupled to a first output terminal and a second transistor coupled to a second output terminal. The circuit also includes a third transistor and a fourth transistor, where device characteristics of the third transistor substantially match device characteristics of the first transistor and device characteristics of the fourth transistor substantially match device characteristics of the second transistor. The circuit further includes a first control path and a second control path. The first path is coupled to the third transistor and provides a first rail voltage to control a first gate control voltage of the first transistor. The second control path is coupled to the fourth transistor and provides a second rail voltage to control a second gate control voltage of the second transistor. The impedances of the first and second transistors may be controlled by the first gate control voltage and the second gate control voltage respectively.

摘要翻译： 公开了一种平衡的单端阻抗控制系统。 在特定实施例中，电路包括耦合到第一输出端的第一晶体管和耦合到第二输出端的第二晶体管。 电路还包括第三晶体管和第四晶体管，其中第三晶体管的器件特性基本上与第一晶体管的器件特性匹配，并且第四晶体管的器件特性基本上与第二晶体管的器件特性相匹配。 电路还包括第一控制路径和第二控制路径。 第一路径耦合到第三晶体管，并提供第一轨电压以控制第一晶体管的第一栅控制电压。 第二控制路径耦合到第四晶体管，并提供第二导轨电压以控制第二晶体管的第二栅极控制电压。 第一和第二晶体管的阻抗可以分别由第一栅极控制电压和第二栅极控制电压控制。

公开(公告)号：US20130033236A1

公开(公告)日：2013-02-07

申请号：US13367097

申请日：2012-02-06

申请人： Miao Li ,  Lieyi Fang

发明人： Miao Li ,  Lieyi Fang

IPC分类号： H03L5/00 ,  H02J7/00

CPC分类号： H02J7/0036 ,  H02J7/0047 ,  H02J7/0063 ,  H02J7/345 ,  H02M7/219

摘要： System and method for discharging a capacitor. An example system includes a signal detector and a discharge control component. The signal detector is configured to receive an input signal and generate a detection signal based on at least information associated with the input signal, the input signal being associated with an alternate current signal received by a capacitor including a first capacitor terminal and a second capacitor terminal. The discharge control component configured to receive at least the detection signal and generate an output signal to discharge the capacitor if the detection signal satisfies one or more conditions.

摘要翻译： 用于放电电容器的系统和方法。 示例系统包括信号检测器和放电控制部件。 信号检测器被配置为接收输入信号并基于至少与输入信号相关联的信息产生检测信号，该输入信号与由包括第一电容器端子和第二电容器端子的电容器接收的交流电流信号相关联 。 所述放电控制部件被配置为如果所述检测信号满足一个或多个条件，则至少接收所述检测信号并产生输出信号以放电所述电容器。

公开(公告)号：US09374019B2

公开(公告)日：2016-06-21

申请号：US13367097

申请日：2012-02-06

申请人： Miao Li ,  Lieyi Fang

发明人： Miao Li ,  Lieyi Fang

IPC分类号： H02J7/00 ,  H02M7/219

CPC分类号： H02J7/0036 ,  H02J7/0047 ,  H02J7/0063 ,  H02J7/345 ,  H02M7/219

摘要： System and method for discharging a capacitor. An example system includes a signal detector and a discharge control component. The signal detector is configured to receive an input signal and generate a detection signal based on at least information associated with the input signal, the input signal being associated with an alternate current signal received by a capacitor including a first capacitor terminal and a second capacitor terminal. The discharge control component configured to receive at least the detection signal and generate an output signal to discharge the capacitor if the detection signal satisfies one or more conditions.

摘要翻译： 用于放电电容器的系统和方法。 示例系统包括信号检测器和放电控制部件。 信号检测器被配置为接收输入信号并基于至少与输入信号相关联的信息产生检测信号，该输入信号与由包括第一电容器端子和第二电容器端子的电容器接收的交流电流信号相关联 。 所述放电控制部件被配置为如果所述检测信号满足一个或多个条件，则至少接收所述检测信号并产生输出信号以放电所述电容器。

公开(公告)号：US08941324B2

公开(公告)日：2015-01-27

申请号：US13105780

申请日：2011-05-11

申请人： Jun Zhou ,  Zhongliang Xiong ,  Miao Li ,  Yaming Cao ,  Qiang Luo ,  Lieyi Fang

发明人： Jun Zhou ,  Zhongliang Xiong ,  Miao Li ,  Yaming Cao ,  Qiang Luo ,  Lieyi Fang

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0851 ,  H05B37/02

摘要： System and method for dimming control. The system includes a system controller including a first controller terminal and a second controller terminal, a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, and a resistor including a first resistor terminal and a second resistor terminal. The system controller is configured to generate a first signal at the first controller terminal based on an input signal and to generate a second signal at the second controller terminal based on the first signal. The first transistor terminal is coupled to the second controller terminal. The first resistor terminal is coupled to the second transistor terminal. The second resistor terminal is coupled to the third transistor terminal. The transistor is configured to receive the second signal at the first transistor terminal and to change between two conditions in response to the second signal.

摘要翻译： 调光控制系统及方法。 该系统包括具有第一控制器端子和第二控制器端子的系统控制器，包括第一晶体管端子，第二晶体管端子和第三晶体管端子的晶体管，以及包括第一电阻端子和第二电阻端子的电阻器。 系统控制器被配置为基于输入信号在第一控制器终端产生第一信号，并且基于第一信号在第二控制器终端产生第二信号。 第一晶体管端子耦合到第二控制器端子。 第一电阻端子耦合到第二晶体管端子。 第二电阻端子耦合到第三晶体管端子。 晶体管被配置为在第一晶体管端子处接收第二信号并响应于第二信号在两个条件之间变化。