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    • 3. 发明授权
    • Simultaneous optimization of analog design parameters using a cost function of responses
    • 使用响应的成本函数同时优化模拟设计参数
    • US08001515B2
    • 2011-08-16
    • US12004862
    • 2007-12-21
    • Jang Dae Kim
    • Jang Dae Kim
    • G06F17/50
    • G06F17/5009G06F2217/08G06F2217/10G06F2217/16
    • An analog system consists of a multitude of interconnected components. Design of such a system involves optimization of the component parameters to achieve a target behavior, collectively called specification. The present invention provides a generic cost function for analog design optimization. It also provides cost surface modeling to speed up the optimization. The cost function compares the behavior of a design to a quantitative specification, which can be a ‘golden’ reference behavior (specification), and measures the error cost, an index of the behavioral discrepancy. That is, the target behavior is explicitly embedded in the cost function. By using the cost function, one can readily qualify a design and thereby identify good/optimum designs. The cost surface modeling with a Latin Hypercube Sampling design-of-experiment provides a statistical mathematical approximation of the actual design's error cost surface, speeding up the optimization by replacing the costly simulation of the actual design with mere evaluation of the mathematical cost surface model expression.
    • 模拟系统由多个互连组件组成。 这种系统的设计涉及组件参数的优化以实现目标行为,统称为规范。 本发明提供了用于模拟设计优化的通用成本函数。 它还提供成本表面建模以加快优化。 成本函数将设计的行为与定量规范进行比较,这可以是“黄金”参考行为(规范),并测量错误成本,这是行为差异的指标。 也就是说,目标行为被明确地嵌入到成本函数中。 通过使用成本函数,可以很容易地对设计进行限定,从而确定良好/最佳设计。 拉丁超立方体采样设计实验的成本表面建模提供了实际设计的误差成本面的统计学数学近似,通过仅仅评估数学成本表面模型表达式代替实际设计的昂贵模拟来加快优化速度 。
    • 5. 发明申请
    • Simultaneous optimization of analog design parameters using a cost function of responses
    • 使用响应的成本函数同时优化模拟设计参数
    • US20090164953A1
    • 2009-06-25
    • US12004862
    • 2007-12-21
    • Jang Dae Kim
    • Jang Dae Kim
    • G06F17/50
    • G06F17/5009G06F2217/08G06F2217/10G06F2217/16
    • An analog system consists of a multitude of interconnected components. Design of such a system involves optimization of the component parameters to achieve a target behavior, collectively called specification. The present invention provides a generic cost function for analog design optimization. It also provides cost surface modeling to speed up the optimization. The cost function compares the behavior of a design to a quantitative specification, which can be a ‘golden’ reference behavior (specification), and measures the error cost, an index of the behavioral discrepancy. That is, the target behavior is explicitly embedded in the cost function. By using the cost function, one can readily qualify a design and thereby identify good/optimum designs. The cost surface modeling with a Latin Hypercube Sampling design-of-experiment provides a statistical mathematical approximation of the actual design's error cost surface, speeding up the optimization by replacing the costly simulation of the actual design with mere evaluation of the mathematical cost surface model expression.
    • 模拟系统由多个互连组件组成。 这种系统的设计涉及组件参数的优化以实现目标行为,统称为规范。 本发明提供了用于模拟设计优化的通用成本函数。 它还提供成本表面建模以加快优化。 成本函数将设计的行为与定量规范进行比较,这可以是“黄金”参考行为(规范),并测量错误成本,这是行为差异的指标。 也就是说,目标行为被明确地嵌入到成本函数中。 通过使用成本函数,可以很容易地对设计进行限定,从而确定良好/最佳设计。 拉丁超立方体采样设计实验的成本表面建模提供了实际设计的误差成本面的统计学数学近似,通过仅仅评估数学成本表面模型表达式代替实际设计的昂贵模拟来加快优化速度 。
    • 6. 发明授权
    • Energy-conserving driver for reactive loads
    • 节能驱动器的无功负载
    • US08350632B1
    • 2013-01-08
    • US12590310
    • 2009-11-05
    • Jang Dae Kim
    • Jang Dae Kim
    • H03B5/18
    • H02M3/1582H02M1/36H02M2007/4815Y02B70/1441
    • A dipole oscillation tank circuit includes a first capacitive structure, an inductive structure, and a second capacitive structure connected in series. The tank circuit transfers electric energy back and forth between the capacitive structures in dipole oscillation cycles. A renewal circuit injects energy into the tank circuit to replenish energy lost during the oscillation cycles. A switch is connected in parallel across the first capacitive structure and in parallel across the inductive structure and the second capacitive structure. During one phase of the oscillation cycles, the switch is opened for current to flow through the first capacitive structure and the inductive structure, and then closed to bypass the first capacitive structure. During another phase of the oscillation cycles, the switch is closed to bypass the first capacitive structure and then opened for current to flow through the first capacitive structure and the inductive structure.
    • 偶极振荡槽电路包括串联连接的第一电容结构,电感结构和第二电容结构。 储能电路在偶极振荡周期中在电容结构之间来回传递电能。 更新电路将能量注入储罐回路以补充在振荡周期期间的能量损失。 开关并联跨第一电容结构并联并联在电感结构和第二电容结构上。 在振荡周期的一个阶段期间,开关打开以使电流流过第一电容结构和电感结构,然后闭合以绕过第一电容结构。 在振荡周期的另一阶段期间,开关闭合以绕过第一电容结构,然后开路以流过第一电容结构和电感结构。
    • 9. 发明申请
    • Algorithmic reactive testbench for analog designs
    • 用于模拟设计的算法反应测试台
    • US20090064063A1
    • 2009-03-05
    • US11899215
    • 2007-09-05
    • Jang Dae KimSteve A. MartinezSatya N. MishraAlan P. BucholzHui X. LiRajesh R. Berigei
    • Jang Dae KimSteve A. MartinezSatya N. MishraAlan P. BucholzHui X. LiRajesh R. Berigei
    • G06F17/50
    • G01R31/318314G01R31/3167
    • An Algorithmic Reactive Testbench (ART) system is provided. The ART system is a high level verification environment with a user program in which on or more analog testbenches are instantiated and operated as prescribed in the program algorithm, and the properties of the unit testbenches (test objects) can be influenced by prior analysis of themselves or other tests. The results of the analysis may also affect the flow of the program itself. In the ART system, modification of the properties of a unit testbench occurs separately in the user program after definition of the unit testbench in the program (test object). A test object is a representation of a unit testbench along with its complete simulation setup and all associated data for the simulation. The test object may also contain various properties including information reflecting the status of the test object. The modification of a property of a test object is an act of communication in the ART system from the ART program to the test object.
    • 提供了一种算法反应测试台(ART)系统。 ART系统是具有用户程序的高级验证环境,其中根据程序算法规定实例化和操作一个或多个模拟测试台,并且单元测试台(测试对象)的属性可以受到对其自身的先前分析的影响 或其他测试。 分析结果也可能影响程序本身的流动。 在ART系统中,在程序(测试对象)中定义单元测试台之后,单元测试台的属性修改在用户程序中单独出现。 测试对象是单元测试台的表示,以及其完整的仿真设置以及所有相关数据的模拟。 测试对象还可以包含各种属性,包括反映测试对象状态的信息。 测试对象的属性的修改是ART系统中从ART程序到测试对象的通信动作。