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    • 1. 发明授权
    • System and method for communicating simulation solutions between circuit components in a hierarchical data structure
    • 用于在分层数据结构中的电路组件之间传递模拟解决方案的系统和方法
    • US07409328B1
    • 2008-08-05
    • US10713754
    • 2003-11-13
    • Bruce W. McGaughyJun KongPeter FreyJaideep Muhkerjee
    • Bruce W. McGaughyJun KongPeter FreyJaideep Muhkerjee
    • G06F17/50
    • G06F17/5036
    • A system for communicating simulation solutions between circuit components in a hierarchical data structure includes a simulator module having one or more computer programs for representing the circuit as a hierarchically arranged set of branches, which includes a root branch and a plurality of other branches logically organized in a graph. The hierarchically arranged set of branches includes a first branch that contains one or more driver leaf circuits and a second branch that also contains one or more receiver leaf circuits, where the first branch and second branch are interconnected in the graph through a third branch at a higher hierarchical level in the graph than the first and second branches. The simulator module further includes computer programs for simulating operation of the one or more driver leaf circuits and the one or more receiver leaf circuits, together, without simulating operation of the third branch to determine a first set of changes in signal conditions shared by the one or more driver leaf circuits and the one or more receiver leaf circuits.
    • 用于在分层数据结构中的电路组件之间传递模拟解决方案的系统包括具有一个或多个计算机程序的模拟器模块,该计算机程序用于将该电路表示为分层布置的分支集,其包括根分支和逻辑上组织在一起的多个其他分支 一张图。 分层布置的分支集合包括包含一个或多个驱动器叶电路的第一分支和还包含一个或多个接收器叶电路的第二分支,其中第一分支和第二分支通过第三分支在图中互连, 图中的分级水平高于第一和第二分支。 模拟器模块还包括用于在不模拟第三分支的操作​​的情况下模拟一个或多个驱动器叶电路和一个或多个接收器叶电路的操作的计算机程序,以确定由该一个共享的信号条件的第一组变化 或更多的驱动器叶电路和一个或多个接收器叶电路。
    • 2. 发明授权
    • System and method for supporting multi-rate simulation of a circuit having hierarchical data structure
    • 支持具有分层数据结构的电路的多速率仿真的系统和方法
    • US07269541B1
    • 2007-09-11
    • US10713753
    • 2003-11-13
    • Bruce W. McGaughyPeter FreyJun KongBaolin Yang
    • Bruce W. McGaughyPeter FreyJun KongBaolin Yang
    • G06F17/50
    • G06F17/5022
    • A system for supporting multi-rate simulation of a circuit having a hierarchical data structure includes a simulator module having one or more computer programs for 1) partitioning the circuit into a plurality of group circuits, each group circuit includes one or more leaf circuits, where each leaf circuit produces a predictable set of output signals with a given set of input signals, 2) storing the group circuits in a scheduled event queue in accordance with priority in time which the group circuits need to be simulated, 3) retrieving from the scheduled event queue a set of group circuits for simulation within a predetermined time period, 4) distributing the set of group circuits into a set of predefined event lists, where each of the predefined event list stores one or more group circuits of a corresponding event type, and 5) simulating the one or more group circuits in each of the predefined event list in accordance with a rate of change of signal conditions of each individual group circuit. Hence, the system provides an efficient way to support multi-rate simulation by dynamically scheduling and synchronizing multiple group simulation event types and by communicating corresponding isomorphic activities through an efficient port connectivity interface.
    • 一种用于支持具有分层数据结构的电路的多速率仿真的系统包括具有一个或多个计算机程序的模拟器模块,用于1)将电路划分为多个组电路,每个组电路包括一个或多个叶电路,其中 每个叶片电路产生具有给定的一组输入信号的可预测的一组输出信号,2)根据组电路需要模拟的时间优先级将组电路存储在调度事件队列中; 3)从调度的 事件队列一组用于在预定时间段内进行模拟的组电路,4)将所述组电路组分配成一组预定事件列表,其中每个预定事件列表存储相应事件类型的一个或多个组电路, 以及5)根据每个单独组的信号条件的变化率来模拟每个预定事件列表中的一个或多个组电路 电路。 因此,该系统通过动态调度和同步多组模拟事件类型并通过有效的端口连接接口传达相应的同构活动来提供有效的方式来支持多速率模拟。
    • 3. 发明授权
    • System and method for adaptive partitioning of circuit components during simulation
    • 仿真期间电路元件自适应分配的系统和方法
    • US07024652B1
    • 2006-04-04
    • US10713751
    • 2003-11-13
    • Bruce W. McGaughyPeter FreyJun KongBaolin Yang
    • Bruce W. McGaughyPeter FreyJun KongBaolin Yang
    • G06F17/50
    • G06F17/5036
    • A system for adaptive partitioning of circuit components during simulating of a circuit having a hierarchical data structure includes a simulator module having one or more computer programs for 1) selecting a group of leaf circuits from the first branch and the second branch for simulation, where each leaf circuit is represented by a matrix comprising a set of equations, 2) determining a strength of coupling between two or more leaf circuits of the group in accordance with a set of predetermined electrical coupling criteria, 3) if two or more leaf circuits are deemed be strongly coupled, combining the corresponding matrix of each strongly coupled leaf circuit into a combined matrix, and 4) performing computation for the two or more strongly coupled leaf circuits in accordance with the combined matrix. The system adaptively adjusts the group circuit matrix for computing a group of circuits according to the strength of coupling between the circuits. Hence, it achieves higher simulation performance by reducing either the size of the solver matrix when the circuits are loosely connected to each other, or by reducing the number of computational repetitions due to the communication of changes of signal conditions between circuits by combining the individual circuit matrices when such circuits are closely coupled to each other.
    • 用于在具有分层数据结构的电路的仿真期间对电路组件进行自适应分配的系统包括具有一个或多个计算机程序的模拟器模块,用于1)从第一分支和第二分支中选择一组叶电路用于模拟,其中每个 叶片电路由包括一组方程的矩阵表示,2)根据一组预定的电耦合标准确定该组的两个或更多叶片电路之间的耦合强度,3)如果认为两个或多个叶片电路 强耦合,将每个强耦合叶电路的相应矩阵组合成组合矩阵,以及4)根据组合矩阵对两个或更多个强耦合叶电路执行计算。 该系统根据电路之间的耦合强度自适应地调整用于计算一组电路的组电路矩阵。 因此,通过在电路彼此松耦合时减小求解器矩阵的大小,或者通过将各个电路之间的信号状态的通信减少而导致的计算重复次数减少,从而实现更高的仿真性能 当这种电路彼此紧密耦合时的矩阵。
    • 7. 发明授权
    • Illumination unit for vehicle headlights and vehicle headlights
    • 汽车头灯和汽车前大灯的照明单元
    • US08870426B2
    • 2014-10-28
    • US13259188
    • 2010-03-29
    • Alois BieblPeter FreyRalf Vollmer
    • Alois BieblPeter FreyRalf Vollmer
    • F21V11/00F21V15/01F21K99/00F21V25/00F21S8/10F21Y101/02
    • F21V25/00F21K9/00F21S41/192F21S45/48F21Y2115/10
    • An illumination unit for vehicle headlights may include a light-emitting diode device, a housing and an assembly board on which components of an operating circuit for operating the light-emitting diode device are arranged, wherein the housing and the assembly board define an interior space, wherein the assembly board has at least one electrically conductive inner layer that is connected to a ground reference potential of the operating circuit and on its surface the assembly board has at least one electrical contact surface which is contacted with at least one electrically conductive inner layer, and the housing has an electromagnetic shielding structure configured to provide electromagnetic shielding of the interior space, wherein the electromagnetic shielding structure is connected to the at least one electrical contact surface.
    • 用于车辆前灯的照明单元可以包括发光二极管装置,壳体和组装板,其上布置有用于操作发光二极管装置的操作电路的部件,其中壳体和组装板限定内部空间 ,其中所述组装板具有至少一个导电内层,其连接到所述操作电路的接地参考电位,并且在其表面上,所述组装板具有至少一个电接触表面,所述至少一个电接触表面与至少一个导电内层 并且所述壳体具有电磁屏蔽结构,其构造成提供所述内部空间的电磁屏蔽,其中所述电磁屏蔽结构连接到所述至少一个电接触表面。