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1. 发明授权

US08146042B1 Method and system for optimized circuit autorouting 有权
标题翻译：优化电路自动布线的方法和系统
公开(公告)号：US08146042B1
公开(公告)日：2012-03-27
申请号：US12618840
申请日：2009-11-16
申请人： Ken Wadland , Richard Woodward , Randall Lawson , Greg Horlick
发明人： Ken Wadland , Richard Woodward , Randall Lawson , Greg Horlick
IPC分类号： G06F17/50
CPC分类号： G06F17/5077
摘要： An approach is provided for selectively optimizing a circuit design to be physical implemented. The approach includes generating a circuit routing solution in accordance with a plurality of constraints for parametric resources of the circuit design, with the constraints being defined respectively by a plurality of corresponding constraint instances. Each constraint instance variably indicates an effective constraining limit and degree of consumption for at least one of the parametric resources. At least one of the constraints is selectively adjusted by a predetermined over-constraining amount, and the circuit routing solution is preliminarily modified by applying at least one routing action selected responsive to the constraint adjustment. An automatic evaluation is then made of the potential impact upon constraint compliance. The evaluation includes generating a relative cost measure for the preliminary modification of the circuit routing solution, based at least partially upon each of the constraint instances. Thereafter, the preliminary modification of said circuit routing solution is either discarded or accepted responsive to the evaluation. A number of these operations may be repeated in recursive manner, if appropriate for the given application.
摘要翻译：提供了一种用于选择性地优化要物理实现的电路设计的方法。该方法包括根据电路设计的参数资源的多个约束生成电路布线解决方案，其中约束分别由多个对应的约束实例定义。每个约束实例可变地指示至少一个参数资源的有效约束极限和消耗程度。通过预定的过约束量选择性地调节约束中的至少一个，并且通过应用响应于约束调整选择的至少一个路由动作来初步修改电路路由解决方案。然后，对约束遵守的潜在影响进行自动评估。该评估包括至少部分地基于每个约束实例来产生用于电路路由解决方案的初步修改的相对成本度量。此后，响应于评估，所述电路布线解决方案的初步修改被丢弃或接受。如果适用于给定的应用程序，可以递归地重复这些操作中的一些操作。

2. 发明授权

US07536665B1 User-guided autorouting 有权
标题翻译：用户引导自动布线
公开(公告)号：US07536665B1
公开(公告)日：2009-05-19
申请号：US11492021
申请日：2006-07-25
申请人： Greg Horlick , Randall Lawson , Donald Morgan , Paul Musto , Joe Smedley , Ken Wadland , Richard Woodward , Sean Bergan , Walter M. Katz
发明人： Greg Horlick , Randall Lawson , Donald Morgan , Paul Musto , Joe Smedley , Ken Wadland , Richard Woodward , Sean Bergan , Walter M. Katz
IPC分类号： G06F17/50
CPC分类号： G06F17/5077
摘要： A mechanism is provided for the user to define a circuit design intent or strategy in the form of data that is stored with the design database. An autorouter then uses this guidance from the user to create a plan for routing the design. The user can then modify their guidance to the router until the results for the plan are acceptable. Using the planned flow, the autorouter can complete the design, creating detailed paths including etch segments and vias. Allowing such interaction with an autorouter significantly reduces the routing time and hence time-to-market.
摘要翻译：提供了一种用于用户以与设计数据库一起存储的数据形式定义电路设计意图或策略的机制。然后，自动布线器使用用户的指导来创建路由设计的计划。然后，用户可以修改他们对路由器的指导，直到计划的结果可以接受。使用计划流程，自动布线器可以完成设计，创建包括蚀刻段和通孔的详细路径。允许与自动布线器的这种交互显着地减少了路由时间，从而缩短了上市时间。

3. 发明授权

US07793249B1 Method and system for adaptive bundling of connections in user-guided autorouting 有权
标题翻译：用户引导自动布线中自适应绑定连接的方法和系统
公开(公告)号：US07793249B1
公开(公告)日：2010-09-07
申请号：US11564083
申请日：2006-11-28
申请人： Ken Wadland , Greg Horlick , Randall Lawson
发明人： Ken Wadland , Greg Horlick , Randall Lawson
IPC分类号： G06F17/50
CPC分类号： G06F17/5077
摘要： Automatic bundle filtering is provided to selectively configure a circuit design having a plurality of component terminals for physical implementation. A placement of components is established for a layout of the circuit design, and a plurality of connections to be routed between predetermined terminals of the components are defined for the layout, with a certain plurality of them selectively grouped into at least one candidate bundle. At least one filter is applied to the connections of each candidate bundle for responsive segregation according to a preselected connection discriminant into one or more updated bundle candidates. Each updated bundle candidate is preferably evaluated in accordance with at least one preselected bundling criteria to identify acceptable bundle candidates therefrom. Bundles corresponding to the acceptable bundle candidates are then generated.
摘要翻译：提供自动捆绑过滤以选择性地配置具有用于物理实现的多个组件终端的电路设计。针对电路设计的布局建立部件的放置，并且为组件定义要在组件的预定端子之间路由的多个连接，其中特定的多个选择性地被分组成至少一个候选束。根据预先选择的连接判别式将至少一个滤波器应用于每个候选束的连接以进行响应分离，以使其成为一个或多个更新的束候选。优选地根据至少一个预先选择的捆绑标准来评估每个更新的束候选，以从其中识别可接受的束候选。然后生成与可接受的束候选对应的束。

4. 发明授权

US07620922B1 Method and system for optimized circuit autorouting 有权
标题翻译：优化电路自动布线的方法和系统
公开(公告)号：US07620922B1
公开(公告)日：2009-11-17
申请号：US11556999
申请日：2006-11-06
申请人： Ken Wadland , Richard Woodward , Randall Lawson , Greg Horlick
发明人： Ken Wadland , Richard Woodward , Randall Lawson , Greg Horlick
IPC分类号： G06F17/50 , G06F9/45
CPC分类号： G06F17/5077
摘要： An approach is provided for selectively optimizing a circuit design, including generating a circuit routing solution according to a plurality of constraints for parametric resources of the circuit design, with the constraints being defined respectively by a plurality of corresponding constraint instances. Each constraint instance variably indicates an effective constraining limit and degree of consumption for at least one of the parametric resources. At least one of the constraints is selectively adjusted by a predetermined over-constraining amount, and the circuit routing solution is preliminarily modified by applying at least one routing action selected responsive to the constraint adjustment. The potential impact upon constraint compliance is evaluated, including generating a relative cost measure for the preliminary modification of the circuit routing solution, based at least partially upon each of the constraint instances. Thereafter, the preliminary modification of the circuit routing solution is either discarded or accepted responsive to the evaluation.
摘要翻译：提供了一种用于选择性地优化电路设计的方法，包括根据电路设计的参数资源的多个约束生成电路布线解决方案，其中约束分别由多个相应的约束实例定义。每个约束实例可变地指示至少一个参数资源的有效约束极限和消耗程度。通过预定的过约束量选择性地调节约束中的至少一个，并且通过应用响应于约束调整选择的至少一个路由动作来初步修改电路路由解决方案。评估对约束约束的潜在影响，包括至少部分地基于每个约束实例来生成用于电路路由解决方案的初步修改的相对成本度量。此后，响应于评估，电路布线解决方案的初步修改被丢弃或接受。

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