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1. 发明申请

US20070136699A1 Dependency matrices and methods of using the same for testing or analyzing an integrated circuit 审中-公开
标题翻译：依赖矩阵及其使用方法用于测试或分析集成电路
公开(公告)号：US20070136699A1
公开(公告)日：2007-06-14
申请号：US11297314
申请日：2005-12-08
申请人： Lyle Grosbach , Kent Haselhorst , Chad McBride , Quentin Schmierer
发明人： Lyle Grosbach , Kent Haselhorst , Chad McBride , Quentin Schmierer
IPC分类号： G06F17/50
CPC分类号： G06F17/5022
摘要： In a first aspect, a method of testing or analyzing an integrated circuit (IC) is provided. The method includes the steps of (1) generating information about a dependency between components of the IC based on a netlist describing the IC; and (2) reducing the generated information by at least one of (a) combining portions of the information about components with a common dependency; and (b) eliminating a portion of the information about at least a first component that does not depend on another component of the IC. Numerous other aspects are provided.
摘要翻译：在第一方面，提供了一种测试或分析集成电路（IC）的方法。该方法包括以下步骤：（1）基于描述IC的网表生成关于IC的组件之间的依赖关系的信息; 和（2）通过以下至少之一来减少所生成的信息：（a）组合具有共同依赖性的关于组件的信息的部分; 和（b）消除关于不依赖于IC的另一个组件的至少第一组件的信息的一部分。提供了许多其他方面。

2. 发明申请

US20080088380A1 PROGRAMMABLE OSCILLATORS FOR HIGH FREQUENCY CLOCK GENERATION FOR SIMULATION ENVIRONMENTS 失效
标题翻译：用于模拟环境的高频时钟产生的可编程振荡器
公开(公告)号：US20080088380A1
公开(公告)日：2008-04-17
申请号：US11952613
申请日：2007-12-07
申请人： Lyle Grosbach , Quentin Schmierer
发明人： Lyle Grosbach , Quentin Schmierer
IPC分类号： G06F17/50 , H03B27/00
CPC分类号： G06F17/5045
摘要： A method and programmable oscillator model are provided for implementing high frequency clock generation for a simulation environment. The programmable oscillator model includes an internal ring oscillator for generating a high frequency clock. The internal ring oscillator counts a number of clocks and determines when to switch the reference clock. For example, a clock edge time is recorded as a two-byte field, where a high byte records a programmable number of fast clocks per clock edge, and a low byte records a fraction of a clock edge. Each time the reference clock switches a count down counter is loaded with the high byte, and the low byte is added to the current fraction. If the fraction has a carry, an additional fast clock is added to the count down counter.
摘要翻译：提供了一种用于为模拟环境实现高频时钟生成的方法和可编程振荡器模型。可编程振荡器模型包括用于产生高频时钟的内部环形振荡器。内部振荡振荡器对多个时钟进行计数，并确定何时切换参考时钟。例如，时钟边沿时间被记录为双字节字段，其中高字节记录每个时钟边沿的可编程数量的快速时钟，低字节记录时钟沿的一小部分。每次参考时钟切换倒数计数器都加载高字节，低字节加到当前分数。如果分数具有进位，则向递减计数器添加额外的快速时钟。

3. 发明申请

US20070176696A1 Programmable oscillators for high frequency clock generation for simulation environments 失效
标题翻译：用于模拟环境的高频时钟生成的可编程振荡器
公开(公告)号：US20070176696A1
公开(公告)日：2007-08-02
申请号：US11344903
申请日：2006-02-01
申请人： Lyle Grosbach , Quentin Schmierer
发明人： Lyle Grosbach , Quentin Schmierer
IPC分类号： H03K3/03
CPC分类号： G06F17/5045
摘要： A method and programmable oscillator model are provided for implementing high frequency clock generation for a simulation environment. The programmable oscillator model includes an internal ring oscillator for generating a high frequency clock. The internal ring oscillator counts a number of clocks and determines when to switch the reference clock. For example, a clock edge time is recorded as a two-byte field, where a high byte records a programmable number of fast clocks per clock edge, and a low byte records a fraction of a clock edge. Each time the reference clock switches a count down counter is loaded with the high byte, and the low byte is added to the current fraction. If the fraction has a carry, an additional fast clock is added to the count down counter.
摘要翻译：提供了一种用于为模拟环境实现高频时钟生成的方法和可编程振荡器模型。可编程振荡器模型包括用于产生高频时钟的内部环形振荡器。内部振荡振荡器对多个时钟进行计数，并确定何时切换参考时钟。例如，时钟边沿时间被记录为双字节字段，其中高字节记录每个时钟边沿的可编程数量的快速时钟，低字节记录时钟沿的一小部分。每次参考时钟切换倒数计数器都加载高字节，低字节加到当前分数。如果分数具有进位，则向递减计数器添加额外的快速时钟。

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