专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06269277B1 System and method for designing integrated circuits 失效
标题翻译：集成电路设计系统及方法
公开(公告)号：US06269277B1
公开(公告)日：2001-07-31
申请号：US09123129
申请日：1998-07-27
申请人： Maria del Mar Hershenson , Stephen P. Boyd , Thomas H. Lee
发明人： Maria del Mar Hershenson , Stephen P. Boyd , Thomas H. Lee
IPC分类号： G06F1900
CPC分类号： G06F17/5063
摘要： A system for designing and optimizing integrated circuits. Design objectives and constraints are described as posynomial functions of the design parameters. The circuit design problem is then expressed as a special form of optimization problem called geometric programming, to which very efficient global optimization methods are applied. The present invention can thereby efficiently determine globally optimal circuit designs, or globally optimal trade-offs among competing performance measures such as, for example for an operational amplifier (op-amp), power, open-loop gain, and bandwidth. The present invention therefore yields automated synthesis of globally optimal circuit designs for a given circuit topology library, directly from specifications.
摘要翻译：集成电路设计和优化系统。设计目标和约束被描述为设计参数的函数式函数。然后将电路设计问题表示为称为几何规划的特殊形式的优化问题，其中应用了非常有效的全局优化方法。因此，本发明可以有效地确定全球最佳电路设计，或者在诸如运算放大器（运算放大器），功率，开环增益和带宽等竞争性能测量之间的全局最佳权衡。因此，本发明可以直接从规范产生给定电路拓扑库的全局最佳电路设计的自动合成。

2. 发明授权

US06311145B1 Optimal design of an inductor and inductor circuit 失效
标题翻译：电感和电感电路的最优设计
公开(公告)号：US06311145B1
公开(公告)日：2001-10-30
申请号：US09335227
申请日：1999-06-17
申请人： Maria del Mar Hershenson , Stephen P. Boyd , Sunderarajan S. Mohan
发明人： Maria del Mar Hershenson , Stephen P. Boyd , Sunderarajan S. Mohan
IPC分类号： G06F1750
CPC分类号： G06F17/5063
摘要： A method for the design and optimization of inductors for RF circuits. This method consists in the formulation of RF circuit designs as geometric programs. The designer can specify a wide variety of specifications such as gain, bandwidth, noise, etc. The method, which was implemented in simple code, determines inductor dimensions and component values in a few seconds real-time. The results was also a globally optimal design.
摘要翻译：一种用于RF电路的电感器的设计和优化的方法。这种方法包括将RF电路设计作为几何程序。设计人员可以指定各种规格，如增益，带宽，噪声等。以简单代码实现的方法可以在几秒钟内实时确定电感尺寸和元件值。结果也是全球最佳设计。

3. 发明授权

US08307309B1 Automated circuit design using active set solving process 有权
标题翻译：使用主动集合求解过程的自动电路设计
公开(公告)号：US08307309B1
公开(公告)日：2012-11-06
申请号：US12195326
申请日：2008-08-20
申请人： Maria del Mar Hershenson , Sunderarajan S. Mohan
发明人： Maria del Mar Hershenson , Sunderarajan S. Mohan
IPC分类号： G06F17/50
CPC分类号： G06F17/5045 , G06F17/504 , G06F17/5063
摘要： A method is described that involves identifying a subset of operational scenarios for a circuit being designed. The family of equations are solved for the circuit over the subset and the solving produces numeric values for design parameters of the circuit. The family of equations enhanced with said numeric values are solved over a remainder of the scenarios and none of the remaining scenarios are identified as being infeasible scenarios. A design for the circuit that includes the numeric values is produced.
摘要翻译：描述了一种涉及识别正在设计的电路的操作场景的子集的方法。为子集中的电路求解方程族，求解产生电路设计参数的数值。利用所述数值增强的方程组在余下的情景中得到解决，而其余情景都不被识别为不可行的场景。产生包含数值的电路设计。

4. 发明授权

US06425111B1 Saturation region transistor modeling for geometric programming 失效
标题翻译：用于几何编程的饱和区晶体管建模
公开(公告)号：US06425111B1
公开(公告)日：2002-07-23
申请号：US09475733
申请日：1999-12-30
申请人： Maria del Mar Hershenson
发明人： Maria del Mar Hershenson
IPC分类号： G06F1750
CPC分类号： G06F17/5036
摘要： A method for providing a mathematical expression representing the operation of a field-effect transistor in its saturation region is disclosed. Data representing the operation of the transistor is divided into data segments with a monomial function fitted to each of the segments. The data segments are selected for a particular operating parameter such as transconductance based on knowledge of the transistor operation. The error at the transition from one function to another is checked and the data segments redivided to minimize the error. The resulting expression lends itself to global solution with geometric programs.
摘要翻译：公开了一种用于提供表示其饱和区域中的场效应晶体管的操作的数学表达式的方法。表示晶体管操作的数据被划分为具有拟合到每个段的单项式函数的数据段。基于对晶体管操作的了解，为特定的工作参数选择数据段，例如跨导。检查从一个功能转换到另一个功能的错误，并重新分割数据段以最小化错误。所得到的表达式适用于具有几何程序的全局解决方案。

5. 发明授权

US07093205B2 Method and apparatus for efficient semiconductor process evaluation 有权
标题翻译：高效半导体工艺评估的方法和装置
公开(公告)号：US07093205B2
公开(公告)日：2006-08-15
申请号：US10412535
申请日：2003-04-10
申请人： Thomas Heydler , Maria del Mar Hershenson
发明人： Thomas Heydler , Maria del Mar Hershenson
IPC分类号： G06F17/50
CPC分类号： G06F17/5063 , G06F17/5036
摘要： A method is described that involves automatically generating a physical behavior curve from a process description; where, the process description describes a process. The method also involves automatically generating a device model for the process from the physical behavior curve; where, the device model is represented in geometric form. The method also involves attempting to automatically generate, with the device model and with a geometric optimization sequence, a circuit design for the process.
摘要翻译：描述了一种涉及从过程描述自动生成物理行为曲线的方法; 其中，过程描述描述了一个过程。该方法还涉及从物理行为曲线自动生成过程的设备模型; 其中，设备模型以几何形式表示。该方法还包括尝试使用设备模型和几何优化序列自动生成该过程的电路设计。

6. 发明申请

US20130125081A1 Automated Circuit Design Using Active Set Solving Process 有权
标题翻译：自动化电路设计使用主动集解决过程
公开(公告)号：US20130125081A1
公开(公告)日：2013-05-16
申请号：US13669342
申请日：2012-11-05
申请人： Maria del Mar Hershenson , Sunderarajan S. Mohan
发明人： Maria del Mar Hershenson , Sunderarajan S. Mohan
IPC分类号： G06F17/50
CPC分类号： G06F17/5045 , G06F17/504 , G06F17/5063
摘要： A method is described that involves solving a family of equations for a circuit being designed over a subset of operational scenarios, thereby producing numeric values for design parameters of the circuit. The family of equations is enhanced with the numeric values are solved over a second subset of the operational scenarios. A design for the circuit that includes the numeric values is produced.
摘要翻译：描述了一种方法，其涉及解决在操作场景的子集上设计的电路的一系列方程，由此产生用于电路的设计参数的数值。通过在操作场景的第二个子集上解决数值来增强方程族。产生包含数值的电路设计。

7. 发明授权

US06954921B2 Method and apparatus for automatic analog/mixed signal system design using geometric programming 有权
标题翻译：使用几何编程的自动模拟/混合信号系统设计的方法和装置
公开(公告)号：US06954921B2
公开(公告)日：2005-10-11
申请号：US10118672
申请日：2002-04-07
申请人： Arash Hassibi , Maria del Mar Hershenson , David M. Colleran
发明人： Arash Hassibi , Maria del Mar Hershenson , David M. Colleran
IPC分类号： G06F17/50
CPC分类号： G06F17/5063
摘要： A method is described that involves recognizing that a variable within a monomial or posynomial expression for a characteristic of an analog or mixed signal system has a dependency on a lower level expression. Then, retrieving from a database the lower level expression and substituting it into the expression in place of the variable so as to describe the system at a greater level of detail than the variable did.
摘要翻译：描述了一种方法，其涉及识别用于模拟或混合信号系统的特性的单项式或公式表达式内的变量具有对较低级别表达式的依赖性。然后，从数据库中检索较低级别的表达式并将其替换为表达式以代替变量，以便以比变量更大的细节级别来描述系统。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式