Method of memory and run-time efficient hierarchical timing analysis in programmable logic devices
    11.
    发明授权
    Method of memory and run-time efficient hierarchical timing analysis in programmable logic devices 有权
    可编程逻辑器件中的存储器和运行时高效分层时序分析方法

    公开(公告)号:US07437695B1

    公开(公告)日:2008-10-14

    申请号:US11100290

    申请日:2005-04-05

    IPC分类号: G06F17/50

    摘要: A method of performing timing analysis on a circuit design for an integrated circuit (IC) can include selecting a physical portion of the IC that includes at least one instance of a logic hierarchy and generating a local timing constraint specific to the physical portion. The method also can include creating a software representation of the physical portion of the IC. The software representation can specify the local timing constraint and a shell netlist for the physical portion. The method further can include performing a timing analysis upon, at least part of, the circuit design using the software representation.

    摘要翻译: 对集成电路(IC)的电路设计执行定时分析的方法可以包括选择包括逻辑层级的至少一个实例的IC的物理部分并且生成特定于物理部分的本地时序约束。 该方法还可以包括创建IC的物理部分的软件表示。 软件表示可以指定本地时序约束和物理部分的shell网表。 该方法还可以包括使用软件表示在电路设计的至少一部分上执行定时分析。

    Method, system and computer program for using a suggestive modeling interface
    13.
    发明申请
    Method, system and computer program for using a suggestive modeling interface 有权
    使用建议建模界面的方法,系统和计算机程序

    公开(公告)号:US20060250393A1

    公开(公告)日:2006-11-09

    申请号:US11405469

    申请日:2006-04-18

    IPC分类号: G06T17/00

    摘要: A method, computer system and computer program is provided for using a suggestive modeling interface. The method consists of a method of a computer-implemented rendering of sketches, the method comprising the steps of: (1) a user activating a sketching application; (2) in response, the sketching application displaying on a screen a suggestive modeling interface; (3) the sketching application importing a sketch to the suggestive modeling interface; and (4) the sketching application retrieving from a database one or more suggestions based on the sketch. The method is operable to allow a user interactively using the sketching application to create a drawing that is guided by the imported sketch by selectively using one or more image guided drawing tools provided by the sketching application. The present invention is well-suited for three-dimensional modeling applications.

    摘要翻译: 提供了一种使用建议建模界面的方法,计算机系统和计算机程序。 该方法由计算机实现的草图绘制方法组成,该方法包括以下步骤:(1)激活草图应用的用户; (2)作为响应,草绘应用在屏幕上显示暗示建模界面; (3)草图应用程序将草图导入建议性建模界面; 和(4)草图应用程序从数据库检索基于草图的一个或多个建议。 该方法可操作以允许用户交互地使用草绘应用来通过选择性地使用由草图应用提供的一个或多个图像引导绘图工具来创建由导入的草图引导的图形。 本发明非常适用于三维建模应用。