Inter-region constraint-based router for use in electronic design automation
    1.
    发明授权
    Inter-region constraint-based router for use in electronic design automation 失效
    用于电子设计自动化的区域间约束路由器

    公开(公告)号:US06543043B1

    公开(公告)日:2003-04-01

    申请号:US09586669

    申请日:2000-06-01

    IPC分类号: G06F1750

    CPC分类号: G06F17/5077

    摘要: A system and method for routing wires using an automated circuit design tool includes a process for order negotiation to adjust the ordering of wires back and forth between conduits by considering both inter-region and intra-region constraints on the layout of the wires. Order negotiation is preferably carried out by looking both forward and backward during the processing of channels, and by flexibly accounting for intra-region, crosstalk, and grouping constraints, as well as conduit exit constraints. Pairs of nets within a conduit are classified in different categories, including (1) having internal constraints, and (2) not having internal constraints. Nets having internal constraints are generally used in order negotiation for limited purposes (e.g., breaking a loop), whereas nets having no internal constraints are generally used in order negotiation for a variety of other purposes as well, including improving the layout of other conduits.

    摘要翻译: 使用自动化电路设计工具布线的系统和方法包括通过考虑电线布局的区域间和区域内约束来进行订单协商以调整导线之间来回引导的布线顺序的过程。 订单协商优选通过在信道处理期间向前和向后查看并且通过灵活地计算区域内,串扰和分组约束以及管道出口约束来执行。 导管内的网对被分为不同的类别,包括(1)具有内部约束,和(2)没有内部约束。 具有内部约束的网络通常在有限目的(例如,断开循环)的顺序协商中使用,而没有内部约束的网络通常用于各种其他目的的顺序协商,包括改进其他管道的布局。

    Method and system for utilizing hard and preferred rules for C-routing of electronic designs
    2.
    发明授权
    Method and system for utilizing hard and preferred rules for C-routing of electronic designs 有权
    用于电子设计的C路由的硬和优选规则的方法和系统

    公开(公告)号:US08769467B2

    公开(公告)日:2014-07-01

    申请号:US11964639

    申请日:2007-12-26

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: An improved approach for implementing C-routing is described. Cost-based analysis is performed to balance the different rule requirements, to optimize the assignment of objects and nets during C-routing.

    摘要翻译: 描述了一种用于实现C-routing的改进方法。 执行基于成本的分析来平衡不同的规则要求,以在C路由期间优化对象和网络的分配。

    Method and System for Utilizing Hard and Preferred Rules for C-Routing of Electronic Designs
    3.
    发明申请
    Method and System for Utilizing Hard and Preferred Rules for C-Routing of Electronic Designs 有权
    使用电子设计C路由的硬性和优选规则的方法和系统

    公开(公告)号:US20090172628A1

    公开(公告)日:2009-07-02

    申请号:US11964639

    申请日:2007-12-26

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5077

    摘要: An improved approach for implementing C-routing is described. Cost-based analysis is performed to balance the different rule requirements, to optimize the assignment of objects and nets during C-routing.

    摘要翻译: 描述了一种用于实现C-routing的改进方法。 执行基于成本的分析来平衡不同的规则要求,以在C路由期间优化对象和网络的分配。