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1. 发明授权

US08195440B2 Method and apparatus for simulating quasi-periodic circuit operating conditions using a mixed frequency/time algorithm 有权
标题翻译：使用混合频率/时间算法模拟准周期性电路工作条件的方法和装置
公开(公告)号：US08195440B2
公开(公告)日：2012-06-05
申请号：US12372608
申请日：2009-02-17
申请人： Dan Feng , Joel R. Phillips , Kenneth Kundert
发明人： Dan Feng , Joel R. Phillips , Kenneth Kundert
IPC分类号： G06F17/50
CPC分类号： G06F17/5036
摘要： Described is a process for performing an improved mixed frequency-time algorithm to simulate responses of a circuit that receives a periodic sample signal and at least one information signal. The process selects a set of evenly spaced distinct time points and a set of reference time points. Each of the reference points is associated with a distinct time point, and a reference time point is a signal period away from its respective distinct time point. The process finds a first set of relationships between the values at the distinct time points and the values the reference time points. The process also finds a second set of relationships between the values at the distinct time points and the values at the reference time points. The process then combines the first and second sets of relationships to establish a system of nonlinear equations in terms of the values at the distinct time points only. By solving the system of nonlinear equations, the process finds simulated responses of the circuit in time domain. The process then converts the simulated circuit responses from time domain to frequency domain.
摘要翻译：描述了一种用于执行改进的混合频率 - 时间算法来模拟接收周期性采样信号的电路和至少一个信息信号的响应的过程。该过程选择一组均匀间隔不同的时间点和一组参考时间点。每个参考点与不同的时间点相关联，并且参考时间点是远离其各自的不同时间点的信号周期。该过程在不同时间点的值和参考时间点之间找到第一组关系。该过程还在不同时间点的值和参考时间点的值之间找到第二组关系。然后，该过程组合第一组和第二组关系，以仅在不同时间点处建立非线性方程组的系数。通过求解非线性方程组，该过程在时域中发现电路的仿真响应。然后，该过程将模拟电路响应从时域转换到频域。

2. 发明申请

US20060248518A1 Methods of model compilation 有权
标题翻译：模型编译方法
公开(公告)号：US20060248518A1
公开(公告)日：2006-11-02
申请号：US11255903
申请日：2005-10-21
申请人： Kenneth Kundert
发明人： Kenneth Kundert
IPC分类号： G06F9/45
CPC分类号： G06F17/5036 , G06F8/41
摘要： A method is provided for compiling a model for use in a simulation, the method comprising receiving a description of the model; and automatically converting the description into an implementation of the model that is customized for a selected analysis during simulation.
摘要翻译：提供了一种用于编译用于模拟的模型的方法，所述方法包括接收所述模型的描述; 并自动将描述转换为在模拟期间为选定分析定制的模型的实现。

3. 发明申请

US20090210202A1 METHOD AND APPARATUS FOR SIMULATING QUASI-PERIODIC CIRCUIT OPERATING CONDITIONS USING A MIXED FREQUENCY/TIME ALGORITHM 有权
标题翻译：使用混合频率/时间算法模拟准周期性电路运行条件的方法和装置
公开(公告)号：US20090210202A1
公开(公告)日：2009-08-20
申请号：US12372608
申请日：2009-02-17
申请人： Dan Feng , Joel R. Phillips , Kenneth Kundert
发明人： Dan Feng , Joel R. Phillips , Kenneth Kundert
IPC分类号： G06F17/10
CPC分类号： G06F17/5036
摘要： Described is a process for performing an improved mixed frequency-time algorithm to simulate responses of a circuit that receives a periodic sample signal and at least one information signal. The process selects a set of evenly spaced distinct time points and a set of reference time points. Each of the reference points is associated with a distinct time point, and a reference time point is a signal period away from its respective distinct time point. The process finds a first set of relationships between the values at the distinct time points and the values the reference time points. The process also finds a second set of relationships between the values at the distinct time points and the values at the reference time points. The process then combines the first and second sets of relationships to establish a system of nonlinear equations in terms of the values at the distinct time points only. By solving the system of nonlinear equations, the process finds simulated responses of the circuit in time domain. The process then converts the simulated circuit responses from time domain to frequency domain.
摘要翻译：描述了一种用于执行改进的混合频率 - 时间算法来模拟接收周期性采样信号的电路和至少一个信息信号的响应的过程。该过程选择一组均匀间隔不同的时间点和一组参考时间点。每个参考点与不同的时间点相关联，并且参考时间点是远离其各自的不同时间点的信号周期。该过程在不同时间点的值和参考时间点之间找到第一组关系。该过程还在不同时间点的值和参考时间点的值之间找到第二组关系。然后，该过程组合第一组和第二组关系，以仅在不同时间点处建立非线性方程组的系数。通过求解非线性方程组，该过程在时域中发现电路的仿真响应。然后，该过程将模拟电路响应从时域转换到频域。

4. 发明授权

US07493240B1 Method and apparatus for simulating quasi-periodic circuit operating conditions using a mixed frequency/time algorithm 有权
标题翻译：使用混合频率/时间算法模拟准周期性电路工作条件的方法和装置
公开(公告)号：US07493240B1
公开(公告)日：2009-02-17
申请号：US09570709
申请日：2000-05-15
申请人： Dan Feng , Joel R. Phillips , Kenneth Kundert
发明人： Dan Feng , Joel R. Phillips , Kenneth Kundert
IPC分类号： G06F17/10
CPC分类号： G06F17/5036
摘要： Described is a process for performing an improved mixed frequency-time algorithm to simulate responses of a circuit that receives a periodic sample signal and at least one information signal. The process selects a set of evenly spaced distinct time points and a set of reference time points. Each of the reference points is associated with a distinct time point, and a reference time point is a signal period away from its respective distinct time point. The process finds a first set of relationships between the values at the distinct time points and the values at the reference time points. The process also finds a second set of relationships between the values at the distinct time points and the values at the reference time points. The process then combines the first and second sets of relationships to establish a system of nonlinear equations in terms of the values at the distinct time points only. By solving the system of nonlinear equations, the process finds simulated responses of the circuit in time domain. The process then converts the simulated circuit responses from time domain to frequency domain.
摘要翻译：描述了一种用于执行改进的混合频率 - 时间算法来模拟接收周期性采样信号的电路和至少一个信息信号的响应的过程。该过程选择一组均匀间隔不同的时间点和一组参考时间点。每个参考点与不同的时间点相关联，并且参考时间点是远离其各自的不同时间点的信号周期。该过程在不同时间点的值和参考时间点的值之间找到第一组关系。该过程还在不同时间点的值和参考时间点的值之间找到第二组关系。然后，该过程组合第一组和第二组关系，以仅在不同时间点处建立非线性方程组的系数。通过求解非线性方程组，该过程在时域中发现电路的仿真响应。然后，该过程将模拟电路响应从时域转换到频域。

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