公开(公告)号：US08717209B2

公开(公告)日：2014-05-06

申请号：US13604184

申请日：2012-09-05

申请人： Jiangfeng Wu ,  Tianwei Li ,  Wenbo Liu ,  Wei-Ta Shih ,  Chun-Ying Chen ,  Lin He ,  Randall Perlow ,  Binning Chen ,  Ramon Gomez

发明人： Jiangfeng Wu ,  Tianwei Li ,  Wenbo Liu ,  Wei-Ta Shih ,  Chun-Ying Chen ,  Lin He ,  Randall Perlow ,  Binning Chen ,  Ramon Gomez

IPC分类号： H03M1/06

CPC分类号： H03M1/0626 ,  H03M1/0614 ,  H03M1/44

摘要： Various pipeline ADCs are disclosed that substantially compensate for interference or distortion that results from imperfections with various ADC modules of the pipeline ADCs. The pipeline ADCs include various ADC stages and various compensation stages that are coupled to the various ADC stages. The various ADC stages convert their corresponding analog inputs from an analog signal domain to a digital signal domain to provide various digital output signals and various analog residual signals to subsequent ADC stages. The various compensation stages compensate for interference or distortion that is impressed onto the various analog residual signals which results from imperfections within previous ADC stages.

摘要翻译： 公开了各种流水线ADC，其基本上补偿由流水线ADC的各种ADC模块的缺陷导致的干扰或失真。 流水线ADC包括各种ADC级以及耦合到各个ADC级的各种补偿级。 各个ADC级将其相应的模拟输入从模拟信号域转换为数字信号域，以向后续ADC级提供各种数字输出信号和各种模拟残留信号。 各种补偿级补偿由于先前ADC阶段的缺陷而导致的各种模拟残差信号的干扰或失真。

公开(公告)号：US07925906B2

公开(公告)日：2011-04-12

申请号：US11166632

申请日：2005-06-24

申请人： Sumant Ranganathan ,  Pieter Vorenkamp ,  Neil Y. Kim ,  Chun-ying Chen

发明人： Sumant Ranganathan ,  Pieter Vorenkamp ,  Neil Y. Kim ,  Chun-ying Chen

IPC分类号： G06F1/26 ,  G06F1/32

CPC分类号： G06F1/26 ,  Y10T307/352

摘要： A system and method for implementing a multi-voltage multi-battery power management integrated circuit. Various aspects of the present invention provide a power management integrated circuit. The power management IC may comprise a first regulator module that receives a first battery power signal from a first battery characterized by a first battery voltage and outputs a first regulated power signal, based at least in part on the first battery power signal. The power management IC may also comprise a second regulator module that receives a second battery power signal from a second battery characterized by a second battery voltage and outputs a second regulated power signal, based at least in part on the second battery power signal. The second battery voltage may, for example, be substantially different than the first battery voltage. The power first and second regulated power signals may, for example, correspond to substantially different power supply voltages.

摘要翻译： 一种实现多电压多电池电源管理集成电路的系统和方法。 本发明的各个方面提供一种功率管理集成电路。 电源管理IC可以包括第一调节器模块，该第一调节器模块至少部分地基于第一电池电力信号从第一电池接收特征在于第一电池电压并输出第一调节功率信号的第一电池电力信号。 电源管理IC还可以包括第二调节器模块，该第二调节器模块至少部分地基于第二电池电力信号从第二电池接收特征为第二电池电压并输出第二调节功率信号的第二电池电力信号。 例如，第二电池电压可能与第一电池电压基本上不同。 功率第一和第二调节功率信号可以例如对应于基本上不同的电源电压。

公开(公告)号：US07920366B2

公开(公告)日：2011-04-05

申请号：US12393417

申请日：2009-02-26

申请人： Chun-Ying Chen ,  Agnes Neves Woo

发明人： Chun-Ying Chen ,  Agnes Neves Woo

IPC分类号： H02H9/00

CPC分类号： H02H9/046

摘要： An integrated circuit can include an I/O pad, an internal circuit, an inductor, an electrostatic discharge (ESD) protection circuit, and an ESD clamp. The internal circuit can be biased with a first voltage supply and a second voltage supply, where the internal circuit is connected to the I/O pad at a first node. The ESD protection circuit can be connected between the first node and a second node. The inductor can be connected between the second node and a third voltage supply. Further, the ESD clamp can be connected between the second node and the second voltage supply.

摘要翻译： 集成电路可以包括I / O焊盘，内部电路，电感器，静电放电（ESD）保护电路和ESD钳位。 内部电路可以用第一电压源和第二电压源进行偏置，其中内部电路在第一节点处连接到I / O焊盘。 ESD保护电路可以连接在第一节点和第二节点之间。 电感器可以连接在第二节点和第三电压源之间。 此外，ESD钳位可以连接在第二节点和第二电压源之间。

公开(公告)号：US07898314B2

公开(公告)日：2011-03-01

申请号：US12385259

申请日：2009-04-02

申请人： Chun-Ying Chen

发明人： Chun-Ying Chen

IPC分类号： H03L5/00

CPC分类号： H03M1/1019 ,  H03M1/12

摘要： Methods and systems for offset compensation using calibration are provided. Embodiments enable offset compensation using non-uniform calibration. Embodiments enable calibration schemes configurable according to the probability distribution function (PDF) of the random offset. Embodiments enable calibration schemes configurable with multiple levels of calibration resolution according to the PDF of the random offset. Embodiments enable calibration schemes configurable with multiple calibration step values according to the PDF of the random offset. Embodiments can be implemented for various types of random offset, including, without limitation, Gaussian-, Bernoulli-, uniformly-, Chi-, exponentially-, Gamma-, and Pareto-distributed offset.

摘要翻译： 提供了使用校准进行偏移补偿的方法和系统。 实施例使用不均匀校准的偏移补偿。 实施例使得可以根据随机偏移的概率分布函数（PDF）配置校准方案。 实施例使得可以根据随机偏移的PDF配置多个校准分辨率的校准方案。 实施例使得可以根据随机偏移的PDF配置具有多个校准步骤值的校准方案。 实施例可以针对各种类型的随机偏移来实现，包括但不限于高斯，伯努利，均匀，奇异，指数，伽马和帕累托分布偏移。

公开(公告)号：US07696704B2

公开(公告)日：2010-04-13

申请号：US11936767

申请日：2007-11-07

申请人： Chih-Chan Ger ,  Chun-Ying Chen

发明人： Chih-Chan Ger ,  Chun-Ying Chen

IPC分类号： H05B37/00

CPC分类号： H05B41/282 ,  Y02B20/183

摘要： A driving device for driving plural discharge lamps. A controller circuit converts a received signal to a first high voltage signal and a second high voltage signal. A first balancing circuit is mounted on a first connecting board and connected to one ends of the discharge lamps. A second balancing circuit is mounted on a second connecting board and connected to the other ends of the discharge lamps. A first set of high voltage lines connects the controller board and the first connecting board, and the first high voltage signal is outputted from the control circuit to the first balancing circuit via the first set of high voltage lines. A second set of high voltage lines connects the controller board and the second connecting board, and the second high voltage signal is outputted from the control circuit to the second balancing circuit via the second set of high voltage lines.

摘要翻译： 一种用于驱动多个放电灯的驱动装置。 控制器电路将接收到的信号转换为第一高电压信号和第二高电压信号。 第一平衡电路安装在第一连接板上并连接到放电灯的一端。 第二平衡电路安装在第二连接板上并连接到放电灯的另一端。 第一组高压线路连接控制器板和第一连接板，并且第一高压信号经由第一组高压线从控制电路输出到第一平衡电路。 第二组高压线路连接控制器板和第二连接板，第二高压信号经由第二组高压线从控制电路输出到第二平衡电路。

公开(公告)号：US20090251326A1

公开(公告)日：2009-10-08

申请号：US12484430

申请日：2009-06-15

申请人： Neil Y. Kim ,  Pieter Vorenkamp ,  Sumant Ranganathan ,  Chun-Ying Chen

发明人： Neil Y. Kim ,  Pieter Vorenkamp ,  Sumant Ranganathan ,  Chun-Ying Chen

IPC分类号： G08B21/00

CPC分类号： H02J7/0047 ,  H04M1/72519 ,  H04W52/0258 ,  Y02D70/00

摘要： A system and method for providing a low power warning in a portable communication device based on predicted device utilization. Various aspects of the present invention may comprise monitoring power utilization for a portable communication device. A power utilization profile may be determined based, at least in part, on the results of the power utilization monitoring. Power availability for the portable communication device may be determined. Future power need for the portable communication device may be predicted based, at least in part, on the determined power utilization profile. The predicted future power need and the determined power availability may be analyzed to determine whether to generate a warning indicating a potential future power shortage. If it is determined that a potential future power shortage warning should be generated, such a warning may be generated. Such a warning may, for example, be generated in accordance with user specifications.

摘要翻译： 一种用于基于预测的设备利用率在便携式通信设备中提供低功率警告的系统和方法。 本发明的各个方面可以包括监视便携式通信设备的功率利用。 可以至少部分地基于功率利用率监测的结果来确定功率利用率曲线。 可以确定便携式通信设备的功率可用性。 可以至少部分地基于确定的功率利用率曲线来预测便携式通信设备的未来功率需求。 可以分析预测的未来功率需求和确定的功率可用性，以确定是否产生指示潜在的未来电力短缺的警告。 如果确定应该产生潜在的未来电力短缺警告，则可能产生这种警告。 这样的警告可以例如根据用户规格生成。

公开(公告)号：US07525366B2

公开(公告)日：2009-04-28

申请号：US11819676

申请日：2007-06-28

申请人： Chun-Ying Chen

发明人： Chun-Ying Chen

IPC分类号： H03L5/00

CPC分类号： H03M1/1019 ,  H03M1/12

摘要： Methods and systems for offset compensation using calibration are provided. Embodiments enable offset compensation using non-uniform calibration. Embodiments enable calibration schemes configurable according to the probability distribution function (PDF) of the random offset. Embodiments enable calibration schemes configurable with multiple levels of calibration resolution according to the PDF of the random offset. Embodiments enable calibration schemes configurable with multiple calibration step values according to the PDF of the random offset. Embodiments can be implemented for various types of random offset, including, without limitation, Gaussian-, Bernoulli-, uniformly-, Chi-, exponentially-, Gamma-, and Pareto-distributed offset.

公开(公告)号：US20080224910A1

公开(公告)日：2008-09-18

申请号：US12153782

申请日：2008-05-23

申请人： Chun Ying Chen

发明人： Chun Ying Chen

IPC分类号： H03M1/66

CPC分类号： H03L7/0996 ,  G11B20/1403 ,  H03L7/0891 ,  H03L7/18

摘要： A phase rotator generates an output signal having plurality of possible output phases with reduced phase jitter. The low jitter phase rotator includes a plurality of differential amplifiers configured to receive a plurality of input differential signals having different phases, and configured to generate a plurality of weighted signals responsive to the plurality of input differential signals. A plurality of digital-to-analog converters (DAC) are arranged into a plurality of groups, each group of DACs configured to provide current for one of the corresponding differential amplifiers. The number of active DACs in each group of DACs determines a relative weighting of the weighted signals, where relative weighting determining an output phase of an output signal of the phase rotator. The DACs are configured to adjust the output phase of the phase rotator. At a kth phase, N/4 adjacent DACs are activated that are indexed as m0, m1, . . . m((N/4)−1), wherein N is the number of said plurality of DACs. At (k+1)th phase, a m(N/4) DAC is activated that is adjacent to the m((N/4−1) DAC. At (k+2)th phase, the m0 DAC is de-activated.

摘要翻译： 相位旋转器产生具有多个具有减小的相位抖动的可能输出相位的输出信号。 低抖动相位旋转器包括多个差分放大器，其被配置为接收具有不同相位的多个输入差分信号，并且被配置为响应于多个输入差分信号产生多个加权信号。 多个数模转换器（DAC）被布置成多个组，每组DAC被配置为为相应的差分放大器之一提供电流。 每组DAC中的有源DAC的数量确定加权信号的相对加权，其中相对加权确定相位旋转器的输出信号的输出相位。 DAC配置为调整相位旋转器的输出相位。 在第k个相位，N / 4个相邻的DAC被激活，其被索引为m 0，m 1，...。 。 。 m（（N / 4）-1）其中N是所述多个DAC的数量。 在（k + 1）^{相位时，与N（4）相邻的（N / 4-1） DAC，在（k + 2）相位时，取消激活。}

公开(公告)号：US07394310B2

公开(公告)日：2008-07-01

申请号：US10975105

申请日：2004-10-28

申请人： Chun-Ying Chen

发明人： Chun-Ying Chen

IPC分类号： G06G7/26

CPC分类号： H03F3/45179 ,  H03F3/45197 ,  H03F3/45982 ,  H03F2203/45506

摘要： Provided are a method and system for controlling impedance in a transconductance amplifier. A system includes a first transconductance amplifier and a second transconductance amplifier configured to control electrical characteristics associated with the first transconductance amplifier. An operational amplifier is provided and has at least one input port connected to the second transconductance amplifier. Also included is a first digital to analog converter (DAC) connected to receive a current signal from the operational amplifier.

摘要翻译： 提供了用于控制跨导放大器中的阻抗的方法和系统。 一种系统包括第一跨导放大器和配置成控制与第一跨导放大器相关联的电特性的第二跨导放大器。 提供一个运算放大器，并具有连接到第二跨导放大器的至少一个输入端口。 还包括一个第一个数模转换器（DAC），用于接收来自运算放大器的电流信号。

公开(公告)号：US20070194771A1

公开(公告)日：2007-08-23

申请号：US11790036

申请日：2007-04-23

申请人： Chun-Ying Chen

发明人： Chun-Ying Chen

IPC分类号： G05F3/20

CPC分类号： G05F1/56 ,  G05F1/575

摘要： A voltage regulator includes a first stage capable of receiving a reference voltage and capable of having a first current flowing through the first stage. A second stage is capable of having a second current flowing through the second stage. A third stage is capable of outputting an output voltage and capable of having a third current flowing through the second stage. The first, second and third currents are proportional to each other throughout a range of operation of the voltage regulator between substantially zero output current and maximum output current. The first stage drives the second stage as a low input impedance load.

摘要翻译： 电压调节器包括能够接收参考电压并能够具有流过第一级的第一电流的第一级。 第二级能够具有流过第二级的第二电流。 第三级能够输出输出电压并能够使第三电流流过第二级。 在基本为零的输出电流和最大输出电流之间，电压调节器的整个操作范围中，第一，第二和第三电流彼此成比例。 第一级驱动第二级作为低输入阻抗负载。