公开(公告)号：US20140236880A1

公开(公告)日：2014-08-21

申请号：US13770666

申请日：2013-02-19

Applicant: Nancy Yan ,  Min He ,  David Kung

Inventor： Nancy Yan ,  Min He ,  David Kung

IPC: G06N5/02

CPC classification number: G06N5/025

Abstract: A method and system are presented of automatically suggesting rules for data stored in a table, with the table comprising a plurality of columns. The table is profiled to identify a content type for each of one or more of the plurality of columns. A rule knowledge base is accessed to locate rules specified for identified content types. Then, one or more of the located rules specified for identified content types are presented as suggestions. Acceptance of one or more of the suggested rules is received from a user, and the received validations are stored in the rule knowledge base. The accepted rules are applied to data for quality detection and monitoring. Embodiments are also described where columns are suggested based on a given rule.

Abstract translation: 提供了一种方法和系统，其自动地建议存储在表中的数据的规则，其中该表包括多个列。 对表进行剖析以识别多个列中的一个或多个的每一个的内容类型。 访问规则知识库以查找为标识的内容类型指定的规则。 然后，为确定的内容类型指定的一个或多个定位规则作为建议呈现。 从用户接收到一个或多个建议的规则的接受，并且接收到的验证被存储在规则知识库中。 接受的规则适用于质量检测和监测的数据。 还描述了基于给定规则来建议列的实施例。

公开(公告)号：US08634218B2

公开(公告)日：2014-01-21

申请号：US12587398

申请日：2009-10-06

Applicant: David Kung

Inventor： David Kung

IPC: H02M7/219

CPC classification number: H02M7/219 ,  H02M7/217 ,  H02M7/2176 ,  H02M2007/2195

Abstract: An integrated circuit (IC) comprises a rectifier/regulator circuit coupled to receive an ac source voltage and output a regulated dc voltage. The rectifier/regulator circuit includes first and second switching elements that provide charging current when enabled. The first and second switching elements do not provide charging current when disabled. A sensor circuit is coupled to sense the regulated dc voltage and generate a feedback control signal coupled to the rectifier/regulator circuit that enables the first and second switching elements when the regulated dc voltage is above a target voltage, and disables the first and second switching elements when the regulated dc voltage is below the target voltage.

Abstract translation: 集成电路（IC）包括整流器/调节器电路，其耦合以接收交流电源电压并输出调节的直流电压。 整流器/调节器电路包括当使能时提供充电电流的第一和第二开关元件。 禁用时，第一和第二开关元件不提供充电电流。 传感器电路被耦合以感测调节的直流电压并且产生耦合到整流器/调节器电路的反馈控制信号，其在调节的直流电压高于目标电压时使能第一和第二开关元件，并且禁用第一和第二开关 当调节的直流电压低于目标电压时的元件。

公开(公告)号：US20130166515A1

公开(公告)日：2013-06-27

申请号：US13334135

申请日：2011-12-22

Applicant: David Kung ,  Wu Cao ,  Suryanarayana Mangipudi ,  Aun-Khuan Tan

Inventor： David Kung ,  Wu Cao ,  Suryanarayana Mangipudi ,  Aun-Khuan Tan

IPC: G06F17/30

CPC classification number: G06Q10/063

Abstract: In one embodiment, the method includes profiling a data file comprising one or more fields of data. The one or more fields of data contain an item of data; that is, a character, or group of characters that are related. Further, the method includes generating one or more profiling attributes based on profiling the data file. In an example, the one or more profiling attributes refer to profiling information relating to pattern, structure, content and format of data. Further, the method includes selecting at least one of the generated one or more profiling attributes and generating a validation rule based on the selected at least one profiling attribute.

Abstract translation: 在一个实施例中，该方法包括对包括一个或多个数据字段的数据文件进行分析。 一个或多个数据字段包含一个数据项; 也就是说，一个字符或一组相关的字符。 此外，该方法包括基于对数据文件的分析来生成一个或多个分析属性。 在一个示例中，一个或多个分析属性指的是与数据的模式，结构，内容和格式相关的分析信息。 此外，该方法包括选择生成的一个或多个分析属性中的至少一个，并且基于所选择的至少一个分析属性生成验证规则。

公开(公告)号：US20120146715A1

公开(公告)日：2012-06-14

申请号：US13398116

申请日：2012-02-16

Applicant: David Kung ,  Leif Lund

Inventor： David Kung ,  Leif Lund

IPC: G05F3/02

CPC classification number: G05F3/30

Abstract: A temperature independent reference circuit includes first and second bipolar transistors with commonly coupled bases. First and second resistors are coupled in series between the emitter of the second bipolar transistor and ground. The first and second resistors have first and second resistance values, R1 and R2, and third and second temperature coefficients, TC3 and TC2, respectively. The resistance values being such that a temperature coefficient of a difference between the base-emitter voltages of the first and second bipolar transistors, TC1, is substantially equal to TC2×(R2/(R1+R2))+TC3×(R1/(R1+R2)), resulting in a reference current flowing through each of the first and second bipolar transistors that is substantially constant over temperature. A third resistor coupled between a node and the collector of the second bipolar transistor has a value such that a reference voltage generated at the node is substantially constant over temperature.

Abstract translation: 独立于温度的参考电路包括具有共同耦合的基极的第一和第二双极晶体管。 第一和第二电阻串联耦合在第二双极晶体管的发射极和地之间。 第一和第二电阻器分别具有第一和第二电阻值R1和R2，以及第三和第二温度系数TC3和TC2。 电阻值使得第一和第二双极晶体管的基极 - 发射极之间的电压TC1的温度系数基本上等于TC2×（R2 /（R1 + R2））+ TC3×（R1 /（ R1 + R2）），导致流经第一和第二双极晶体管中的每一个的参考电流在温度上基本恒定。 耦合在第二双极晶体管的节点和集电极之间的第三电阻器具有使得在节点处产生的参考电压在温度上基本恒定的值。

公开(公告)号：US20110121889A1

公开(公告)日：2011-05-26

申请号：US12931377

申请日：2011-01-31

Applicant: David Kung ,  Leif Lund

Inventor： David Kung ,  Leif Lund

IPC: G05F1/10

CPC classification number: G05F3/30

Abstract: A temperature independent reference circuit includes first and second bipolar transistors with commonly coupled bases. First and second resistors are coupled in series between the emitter of the second bipolar transistor and ground. The first and second resistors have first and second resistance values, R1 and R2, and third and second temperature coefficients, TC3 and TC2, respectively. The resistance values being such that a temperature coefficient of a difference between the base-emitter voltages of the first and second bipolar transistors, TC1, is substantially equal to TC2×(R2/(R1+R2))+TC3×(R1/(R1+R2)), resulting in a reference current flowing through each of the first and second bipolar transistors that is substantially constant over temperature. A third resistor coupled between a node and the collector of the second bipolar transistor has a value such that a reference voltage generated at the node is substantially constant over temperature.

公开(公告)号：US20110025278A1

公开(公告)日：2011-02-03

申请号：US12533977

申请日：2009-07-31

Applicant: Balu Balakrishnan ,  David Kung ,  Raymond Kenneth Orr ,  David Michael Hugh Matthews

Inventor： Balu Balakrishnan ,  David Kung ,  Raymond Kenneth Orr ,  David Michael Hugh Matthews

IPC: H02J7/00

CPC classification number: H02M1/32 ,  H02M1/12 ,  H02M1/126 ,  H02M1/36 ,  H02M2001/322

Abstract: A circuit to discharge a capacitance between input terminals of a power system is disclosed. An example circuit includes a control circuit coupled to an input of a power system. The control circuit is coupled to detect whether an electrical energy source is coupled to an input of the power system. A switch is also included and is coupled to the control circuit and to the input of the power system. The control circuit is coupled to drive the switch in a first operating mode when the electrical energy source is coupled to the input of the power system. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input of the power system. A capacitance coupled between input terminals of the input of the power system is discharged through the switch to a threshold voltage in less than a maximum period of time from when the electrical power source is uncoupled from the input terminals of the power system.

Abstract translation: 公开了一种用于在电力系统的输入端子之间放电的电路。 示例电路包括耦合到电力系统的输入的控制电路。 控制电路被耦合以检测电能源是否耦合到电力系统的输入端。 还包括开关并且耦合到控制电路和电力系统的输入。 当电能源耦合到电力系统的输入端时，控制电路被耦合以在第一操作模式下驱动开关。 当电能源与电力系统的输入分离时，控制电路被耦合以在第二操作模式下驱动开关。 耦合在电力系统的输入端的输入端之间的电容通过开关从小于电力从电力系统的输入端分离的最大时间段内被释放到阈值电压。

公开(公告)号：US20050114814A1

公开(公告)日：2005-05-26

申请号：US10720464

申请日：2003-11-24

Applicant: Anthony Correale ,  David Kung ,  Douglass Lamb ,  Zhigang Pan ,  Ruchir Puri ,  David Wallach

Inventor： Anthony Correale ,  David Kung ,  Douglass Lamb ,  Zhigang Pan ,  Ruchir Puri ,  David Wallach

IPC: G06F17/50 ,  H01L25/00 ,  H01L27/118 ,  H03K19/173

CPC classification number: G06F17/5045 ,  G06F17/5068 ,  G06F2217/78 ,  H01L27/118

Abstract: An integrated circuit (IC) design, method and program product for reducing IC design power consumption. The IC is organized in circuit rows. Circuit rows may include a low voltage island powered by a low voltage (Vddl) supply and a high voltage island powered by a high voltage (Vddh) supply. Circuit elements including cells, latches and macros are placed with high or low voltage islands to minimize IC power while maintaining overall performance. Level converters may be placed with high voltage circuit elements.

Abstract translation: 一种用于降低IC设计功耗的集成电路（IC）设计，方法和程序产品。 IC以电路行组织。 电路行可以包括由低电压（Vdd）电源供电的低压岛和由高电压（Vdd）供电供电的高电压岛。 包括电池，锁存器和宏的电路元件放置有高电压或低电压岛，以尽量减少IC功率，同时保持整体性能。 电平转换器可以放置高压电路元件。

公开(公告)号：US5045800A

公开(公告)日：1991-09-03

申请号：US498829

申请日：1990-03-23

Applicant: David Kung

Inventor： David Kung

IPC: H03K7/08

CPC classification number: H03K7/08

Abstract: A circuit generates control signals used in pulse width modulation. A square wave signal generator generates a square wave signal based on the value of a sawtooth signal. The sawtooth signal has a maximum voltage level and a minimum voltage level. The voltage level of the sawtooth signal is compared with a first voltage slightly above the minimum voltage level. When voltage of the sawtooth signal is increasing and reaches the first voltage, a rising edge of the square wave is generated. The voltage level of the sawtooth signal is also compared with a second voltage slightly below the maximum voltage level. When voltage of the sawtooth signal is increasing and reaches the second voltage, a falling edge of the square wave signal is generated.

Abstract translation: 电路产生用于脉宽调制的控制信号。 方波信号发生器基于锯齿波信号的值产生方波信号。 锯齿波信号具有最大电压电平和最小电压电平。 将锯齿波信号的电压电平与略低于最小电压电平的第一电压进行比较。 当锯齿波信号的电压上升并达到第一电压时，产生方波的上升沿。 锯齿波信号的电压电平也与略低于最大电压电平的第二电压进行比较。 当锯齿波信号的电压上升并达到第二电压时，产生方波信号的下降沿。

公开(公告)号：US20140081931A1

公开(公告)日：2014-03-20

申请号：US13623719

申请日：2012-09-20

Applicant: David Kung ,  Min He ,  Mengdan Ma

Inventor： David Kung ,  Min He ,  Mengdan Ma

IPC: G06F17/30

CPC classification number: G06F17/30 ,  G06F17/30371 ,  G06F17/3051 ,  G06Q10/06

Abstract: In an example embodiment, a method of automatically generating data validation rules from data stored in a column of a table is provided. Outliers for the data are determined by analyzing a profiling statistic for the data, the profiling statistic having a type. Then it is determined if a predefined limit is exceeded, based on a quantity of the outliers determined for the data through the analysis of the profiling statistic. A data validation rule is then automatically generated based on non-outliers detected in the data through the analysis of the profiling statistic, the generated data validation rule also being based on the type of the profiling statistic. The data validation rule can then be applied to data subsequently entered for the column, causing at least a portion of the data subsequently entered for the column to be rejected.

Abstract translation: 在示例实施例中，提供了从存储在表的列中的数据自动生成数据验证规则的方法。 通过分析数据的分析统计量，具有类型的分析统计信息来确定数据的异常值。 然后，基于通过分析统计量的分析为数据确定的异常值的数量，确定是否超过预定义的限制。 然后，基于通过分析统计信息的分析在数据中检测到的非离群值来自动生成数据验证规则，生成的数据验证规则也基于分析统计量的类型。 然后可以将数据验证规则应用于随后为列输入的数据，导致随后输入的数据的至少一部分数据被拒绝。

公开(公告)号：US08299772B2

公开(公告)日：2012-10-30

申请号：US13272950

申请日：2011-10-13

Applicant: David Kung ,  Leif Lund

Inventor： David Kung ,  Leif Lund

IPC: G05F1/10 ,  G05F1/00

CPC classification number: H02M1/36 ,  H02M2001/0029

Abstract: An example circuit includes a regulator circuit coupled to first and second nodes. A capacitance circuit and a slew rate control circuit are coupled between the first and second nodes. The regulator circuit is coupled to charge a capacitance of the capacitance circuit with a charge current. The slew rate control circuit is coupled to control a change in voltage over change in time between the first and second nodes during a power up mode of the circuit. The slew rate control circuit further includes a switch and a resistor. The slew rate control circuit is coupled to switch the switch in response to a voltage between the first and second nodes. A voltage drop across the resistor is limited to a base-emitter voltage drop of a transistor coupled between the first and second nodes to set the change in voltage over change in time.

Abstract translation: 示例电路包括耦合到第一和第二节点的调节器电路。 电容电路和转换速率控制电路耦合在第一和第二节点之间。 该调节器电路被耦合以用充电电流对电容电路的电容进行充电。 耦合转换速率控制电路以在电路的上电模式期间控制电压在第一和第二节点之间的时间上的变化。 转换速率控制电路还包括开关和电阻器。 转换速率控制电路被耦合以响应于第一和第二节点之间的电压来切换开关。 电阻器两端的电压降限制在耦合在第一和第二节点之间的晶体管的基极 - 发射极电压降，以设置电压随时间的变化。