公开(公告)号：US07999606B2

公开(公告)日：2011-08-16

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.

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：US20110080209A1

公开(公告)日：2011-04-07

申请号：US12572952

申请日：2009-10-02

Applicant: David Kung ,  Leif Lund

Inventor： David Kung ,  Leif Lund

IPC: G05F3/02

CPC classification number: H02M1/36 ,  H02M2001/0029

Abstract: A circuit to control the slew rate of charging a capacitance using the capacitance is disclosed. An example circuit includes a regulator circuit to regulate a supply voltage during a normal operation mode of the circuit. A capacitance circuit is coupled to the regulator circuit. The regulator circuit is coupled to charge a capacitance between a first node and a second node of the capacitance circuit with a charge current. A slew rate control circuit is coupled to the regulator circuit and the capacitance circuit. The slew rate control circuit sets a slew rate of a voltage between the first and second nodes during a power up mode of the circuit.

Abstract translation: 公开了一种使用该电容来控制对电容充电的转换速率的电路。 示例电路包括调节器电路，以在电路的正常操作模式期间调节电源电压。 电容电路耦合到调节器电路。 该调节器电路被耦合以用充电电流对电容电路的第一节点和第二节点之间的电容进行充电。 压摆率控制电路耦合到调节器电路和电容电路。 压摆率控制电路在电路的上电模式期间设置第一和第二节点之间的电压的压摆率。

公开(公告)号：US20060198539A1

公开(公告)日：2006-09-07

申请号：US11062818

申请日：2005-02-23

Applicant: David Kung

Inventor： David Kung

IPC: H04R3/00 ,  H04B1/16

CPC classification number: H04B1/0346 ,  H01R13/22 ,  H01R27/00 ,  H04R27/00 ,  H04R2420/07

Abstract: A signal transmission mechanism between a wireless microphone and a receiver comprises a receiver, a wireless microphone and a microphone transmitter. A recess is formed on a surface of the receiver, wherein a plurality of electric contact points is disposed within the recess for facilitating an electric contact with either the wireless microphone or the microphone transmitter. The wireless microphone and the microphone transmitter respectively have extended rear ends capable of being coupled with the recess of the receiver and respectively have electric contact points, whereby the electric contact points of the wireless microphone or the microphone transmitter will be in electric contact with a corresponding set of the electric contact points of the receiver for frequency alignment. Since the frequency alignment is achieved through direct contact, the process of alignment will be quick, precise and free from external radio disturbances.

Abstract translation: 无线麦克风和接收机之间的信号传输机构包括接收机，无线麦克风和麦克风发射机。 在接收器的表面上形成凹部，其中多个电接触点设置在凹部内，以便于与无线麦克风或麦克风发射器的电接触。 无线麦克风和麦克风发射器分别具有能够与接收器的凹部耦合的扩展后端，并且分别具有电接触点，由此无线麦克风或麦克风发送器的电接触点将与相应的 用于频率对准的接收器的电接触点组。 由于通过直接接触实现频率对准，所以对准的过程将快速，精确并且没有外部无线电干扰。

公开(公告)号：US20050189604A1

公开(公告)日：2005-09-01

申请号：US10787488

申请日：2004-02-26

Applicant: Puneet Gupta ,  Fook-Luen Heng ,  David Kung ,  Daniel Ostapko

Inventor： Puneet Gupta ,  Fook-Luen Heng ,  David Kung ,  Daniel Ostapko

IPC: H01L27/118 ,  G06F17/50 ,  H01L21/82 ,  H01L27/02 ,  H01L27/092 ,  H01L29/00 ,  H03K5/13

CPC classification number: H01L27/0207 ,  H01L27/092

Abstract: An integrated circuit (IC) including at least one combinational logic path. The combinational logic path includes two types of logic blocks cells that compensate each other for fabrication parameter effects on cell transistors. The two types may be dense cells with field effect transistor (FET) gates on contacted pitch and isolated cells with FET gates on wider than contacted pitch. Dense cell delay changes from the FET gates being printed out of focus are offset by isolated cell delay changes.

Abstract translation: 一种包括至少一个组合逻辑路径的集成电路（IC）。 组合逻辑路径包括两种类型的逻辑块，其彼此补偿用于对单元晶体管的制造参数影响。 这两种类型可以是在接触间距处具有场效应晶体管（FET）栅极的密集电池，并且具有FET栅极的隔离电池宽于接触间距。 从被打印出焦点的FET栅极的密集单元延迟变化被隔离的单元延迟变化抵消。

公开(公告)号：US20050010899A1

公开(公告)日：2005-01-13

申请号：US10617592

申请日：2003-07-11

Applicant: David Kung ,  Manish Jodhani

Inventor： David Kung ,  Manish Jodhani

IPC: G06F9/44

CPC classification number: G06F8/75

Abstract: A process and system are provided for representing object interactions, by means of a sequence diagram or the like, wherein the object interactions are recovered from source code written in Java or other object-oriented programming language. Initially, a Method Information Parser determines the respective methods declared inside the source code and extracts their names. A Method Detail Parser then extracts the method calls to other objects within a method, to resolve each complex method call into multiple lines of single method calls. Information derived from the multiple lines of single method calls is then used to generate the sequence diagram.

Abstract translation: 提供了通过序列图等来表示对象交互的过程和系统，其中从Java或其他面向对象编程语言编写的源代码中恢复对象交互。 最初，方法信息解析器确定在源代码中声明的相应方法并提取其名称。 方法详细信息解析器然后提取方法调用方法中的其他对象，以将每个复杂方法调用解析为单行方法调用的多行。 然后使用从单个方法调用的多行导出的信息来生成序列图。

公开(公告)号：US4528463A

公开(公告)日：1985-07-09

申请号：US394028

申请日：1982-06-30

Applicant: David Kung

Inventor： David Kung

IPC: H03K5/02 ,  H03K17/60 ,  H03K19/018 ,  H03K3/01

CPC classification number: H03K17/60 ,  H03K19/01806 ,  H03K5/02

Abstract: A digital driver circuit employs an output transistor having an uncommitted collector that can act as a current sink connectable to a peripheral element that is to be controlled. The base of the output transistor is coupled to a driver circuit that controls the output transistor conduction. The driver input is coupled to a pair of cascaded current mirrors which act to switch the driver off and on. An input stage is coupled to control the current mirrors in response to a low current logic signal.

Abstract translation: 数字驱动器电路采用具有未提供的集电极的输出晶体管，其可以用作可连接到待控制的外围元件的电流宿。 输出晶体管的基极耦合到控制输出晶体管导通的驱动电路。 驱动器输入耦合到一对级联的电流镜，其用于将驱动器切断并接通。 输入级被耦合以响应于低电流逻辑信号来控制电流镜。

公开(公告)号：US11093521B2

公开(公告)日：2021-08-17

申请号：US13929475

申请日：2013-06-27

Applicant: Min He ,  Frank Le ,  Hiren Kotadia ,  Hemant Puranik ,  Abhiram Gujjewar ,  David Kung

Inventor： Min He ,  Frank Le ,  Hiren Kotadia ,  Hemant Puranik ,  Abhiram Gujjewar ,  David Kung

IPC: G06F16/27

Abstract: Systems and methods for just-in-time data quality assessment of best records created during data migration are disclosed. A data steward includes tools for creating and editing a best record creation strategy that defines how records from multiple systems will be integrated into target systems. At design time, the data steward can generate best record creation and validation rules based on the best record creation strategy. The data steward can apply the best record creation and validation rules to a sample of matched records from multiple data sources to generate a sample set of best records. The efficacy of the best record creation rules can be evaluated by assessing the number of fields in the sample set that fail the validation rules. During review, the validation rules can be applied to edits to the best records received from a human reviewer to ensure compliance with the best record creation strategy.

公开(公告)号：US09449117B2

公开(公告)日：2016-09-20

申请号：US14167424

申请日：2014-01-29

Applicant: Min He ,  David Kung ,  Suryanarayana Mangipudi ,  Hongfan Qian

Inventor： Min He ,  David Kung ,  Suryanarayana Mangipudi ,  Hongfan Qian

IPC: G06F17/30

CPC classification number: G06F17/3053 ,  G06F17/30312 ,  G06F17/30477 ,  G06F17/30554 ,  G06F17/30997

Abstract: According to some embodiments, a method and an apparatus of enriching search results with metadata are provided to receive a plurality of metadata associated with an entity and storing the plurality of metadata in a repository. A search request associated with the entity is received and search results that comprise a portion of the plurality of metadata stored in the repository are determined.

Abstract translation: 根据一些实施例，提供了利用元数据来丰富搜索结果的方法和装置，以接收与实体相关联的多个元数据并将多个元数据存储在存储库中。 接收与实体相关联的搜索请求，并且确定包含存储在存储库中的多个元数据的一部分的搜索结果。

公开(公告)号：US08624562B2

公开(公告)日：2014-01-07

申请号：US13345257

申请日：2012-01-06

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 switch is coupled to a control circuit and to an input of a power converter. The control circuit is coupled to drive the switch in a first operating mode to transfer energy from the input to an output of the power converter when an electrical energy source is coupled to the input of the power converter. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input. A capacitance is coupled between input terminals of the input of the power converter and is discharged to a threshold voltage in less than a maximum period of time from when the electrical energy source is uncoupled from the input terminals. The control circuit is coupled to drive the switch to have a high average impedance in the first operating mode.

Abstract translation: 开关耦合到控制电路和功率转换器的输入端。 当电能源耦合到功率转换器的输入端时，控制电路被耦合以在第一操作模式下驱动开关以将能量从输入传递到功率转换器的输出端。 当电能源与输入端分离时，控制电路被耦合以在第二操作模式下驱动开关。 电容耦合在功率转换器的输入端的输入端之间，并且在电能从输入端分离之后的最小时间内被放电到阈值电压。 控制电路被耦合以驱动开关以在第一操作模式中具有高平均阻抗。

公开(公告)号：US08325505B2

公开(公告)日：2012-12-04

申请号：US13401674

申请日：2012-02-21

Applicant: David Kung ,  William M. Polivka

Inventor： David Kung ,  William M. Polivka

IPC: H02M7/44

CPC classification number: H02M3/33523 ,  H02M2001/0009

Abstract: An example power supply includes an energy transfer element, a switch and a controller. The controller includes a logic circuit and a constant current control circuit. The logic circuit generates a drive signal to control the switch in response to a control signal. The constant current control circuit generates the control signal in response to a received input current sense signal, input voltage sense signal, and output voltage sense signal. An integrator included in the constant current control circuit integrates the input current sense signal to generate an integrated signal representative of a charge taken from the input voltage source. The constant current control circuit is adapted to generate the control signal to provide a constant current at the output of the power supply such that the integrated signal is proportional to a ratio of the output voltage sense signal to the input voltage sense signal.

Abstract translation: 示例性电源包括能量传递元件，开关和控制器。 控制器包括逻辑电路和恒流控制电路。 逻辑电路响应于控制信号产生驱动信号以控制开关。 恒流控制电路根据接收的输入电流检测信号，输入电压检测信号和输出电压检测信号产生控制信号。 包括在恒流控制电路中的积分器将输入电流检测信号积分，以产生表示从输入电压源获取的电荷的积分信号。 恒流控制电路适于产生控制信号以在电源的输出处提供恒定电流，使得积分信号与输出电压感测信号与输入电压感测信号的比例成比例。