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1. 发明申请

US20070234255A1 RAMPTIME PROPAGATION ON DESIGNS WITH CYCLES 失效
标题翻译：带循环设计的RAMPTIME传播
公开(公告)号：US20070234255A1
公开(公告)日：2007-10-04
申请号：US11757229
申请日：2007-06-01
申请人： Andrej Zolotykh , Elyar Gasanov , Alexei Galatenko , Ilya Lyalin
发明人： Andrej Zolotykh , Elyar Gasanov , Alexei Galatenko , Ilya Lyalin
IPC分类号： G06F17/50
CPC分类号： G06F17/5031
摘要： A method and apparatus for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.
摘要翻译：描述了一种用于计算具有在一个或多个闭环中的定向图中互连的引脚的集成电路布图图案的突触传播的方法和装置。对于第一组引脚计算Ramptime值，它们不连接到闭环，同时留下第二组引脚具有未知的ramptime值。一个或多个闭环通过从第二组中的引脚回溯具有未知的ramptime值来识别。迭代地计算一个或多个闭环中每个引脚的ramptime值。

2. 发明授权

US08516425B2 Method and computer program for generating grounded shielding wires for signal wiring 失效
标题翻译：用于生成信号线接地屏蔽线的方法和计算机程序
公开(公告)号：US08516425B2
公开(公告)日：2013-08-20
申请号：US13544632
申请日：2012-07-09
申请人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykih , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
发明人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykih , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F2217/84
摘要： A system and method are provided for reducing signal skew. The method includes receiving a netlist having components and connections among the components. Each connection has at least one signal wire. A plurality of net groups is identified, each net group including at least some of the connections and for which equivalent routing is desired. For each net group, the method includes systematically routing connection paths between the components for the connections, each connection path extending between an output of one of the components and an input to at least one other of the components and including at least one path fragment. Routing includes, for at least one of the connections of the net group, routing at least one grounded shielding wire in a routing channel adjacent and parallel to at least one of the path fragments of the connection path.
摘要翻译：提供了一种减少信号偏移的系统和方法。该方法包括接收具有组件之间的组件和连接的网表。每个连接具有至少一个信号线。识别多个网络组，每个网络组包括至少一些连接并且期望等效路由。对于每个网络组，所述方法包括系统地路由用于连接的组件之间的连接路径，每个连接路径在组件之一的输出和至少一个其他组件的输入之间延伸并且包括至少一个路径片段。对于网络组的至少一个连接，路由包括在与连接路径的路径片段中的至少一个相邻并且平行的路由信道中路由至少一个接地屏蔽线。

3. 发明授权

US07996804B2 Signal delay skew reduction system 有权
标题翻译：信号延迟偏差减少系统
公开(公告)号：US07996804B2
公开(公告)日：2011-08-09
申请号：US12015925
申请日：2008-01-17
申请人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykih , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
发明人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykih , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F2217/84
摘要： A system for reducing the signal delay skew is disclosed, according to a variety of embodiments. One illustrative embodiment of the present disclosure is directed to a method. According to one illustrative embodiment, the method includes receiving an initial netlist comprising components and connection paths among the components. The method further includes identifying one or more skew-influencing features in a first connection path in the initial netlist that lack corresponding skew-influencing features in a second connection path in the initial netlist. The method also includes generating a skew-corrected netlist wherein the second connection path includes one or more added skew-influencing features corresponding to those of the first connection path. The method further includes outputting the skew-corrected netlist.
摘要翻译：根据各种实施例，公开了一种用于减小信号延迟偏差的系统。本公开的一个说明性实施例涉及一种方法。根据一个说明性实施例，该方法包括接收包括组件之间的组件和连接路径的初始网表。该方法还包括识别在初始网表中的第一连接路径中的一个或多个偏斜影响特征，其在初始网表中的第二连接路径中缺少相应的偏斜影响特征。该方法还包括生成偏差校正网表，其中第二连接路径包括与第一连接路径的相应的一个或多个相加的偏斜影响特征。该方法还包括输出经偏斜校正的网表。

4. 发明申请

US20120278783A1 SIGNAL DELAY SKEW REDUCTION SYSTEM 失效
标题翻译：信号延迟减少系统
公开(公告)号：US20120278783A1
公开(公告)日：2012-11-01
申请号：US13544632
申请日：2012-07-09
申请人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykh , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
发明人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykh , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F2217/84
摘要： A system and method are provided for reducing signal skew. The method includes receiving a netlist having components and connections among the components. Each connection has at least one signal wire. A plurality of net groups is identified, each net group including at least some of the connections and for which equivalent routing is desired. For each net group, the method includes systematically routing connection paths between the components for the connections, each connection path extending between an output of one of the components and an input to at least one other of the components and including at least one path fragment. Routing includes, for at least one of the connections of the net group, routing at least one grounded shielding wire in a routing channel adjacent and parallel to at least one of the path fragments of the connection path.
摘要翻译：提供了一种减少信号偏移的系统和方法。该方法包括接收具有组件之间的组件和连接的网表。每个连接具有至少一个信号线。识别多个网络组，每个网络组包括至少一些连接并且期望等效路由。对于每个网络组，所述方法包括系统地路由用于连接的组件之间的连接路径，每个连接路径在组件之一的输出和至少一个其他组件的输入之间延伸并且包括至少一个路径片段。对于网络组的至少一个连接，路由包括在与连接路径的路径片段中的至少一个相邻并且平行的路由信道中路由至少一个接地屏蔽线。

5. 发明授权

US08239813B2 Method and apparatus for balancing signal delay skew 失效
标题翻译：信号延迟偏移平衡的方法和装置
公开(公告)号：US08239813B2
公开(公告)日：2012-08-07
申请号：US13173855
申请日：2011-06-30
申请人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykih , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
发明人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykih , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
IPC分类号： G06F17/50 , G06F9/455
CPC分类号： G06F17/505 , G06F2217/84
摘要： A system and method are provided for reducing the signal delay skew is disclosed, according to a variety of embodiments. One illustrative embodiment of the present disclosure is directed to a method. According to one illustrative embodiment, the method includes receiving an initial netlist having components and connection paths among the components; identifying a first connection path in the initial netlist that comprises path fragments for which there are no equivalent path fragments in a second connection path in the initial netlist; generating a skew-corrected netlist wherein the second connection path is re-routed to have path fragments equivalent to the path fragments of the first connection path; and outputting the skew-corrected netlist.
摘要翻译：根据各种实施例，提供了一种用于减少信号延迟偏差的系统和方法。本公开的一个说明性实施例涉及一种方法。根据一个说明性实施例，该方法包括：接收在组件之间具有组件和连接路径的初始网表; 识别所述初始网表中的第一连接路径，其包括在所述初始网表中的第二连接路径中不存在等效路径片段的路径片段; 生成偏差校正网表，其中所述第二连接路径被重新路由以具有等同于所述第一连接路径的路径片段的路径片段; 并输出偏差校正的网表。

6. 发明申请

US20060123369A1 Ramptime propagation on designs with cycles 有权
标题翻译：在具有周期的设计上的Ramptime传播
公开(公告)号：US20060123369A1
公开(公告)日：2006-06-08
申请号：US11004309
申请日：2004-12-03
申请人： Andrej Zolotykh , Elyar Gasanov , Alexei Galatenko , Ilya Lyalin
发明人： Andrej Zolotykh , Elyar Gasanov , Alexei Galatenko , Ilya Lyalin
IPC分类号： G06F17/50 , G06F9/45
CPC分类号： G06F17/5031
摘要： A method for calculating ramptime propagation for integrated circuit layout patterns having pins interconnected in an oriented graph in one or more closed loops is described. Ramptime values are calculated for a first set of the pins, which are not connected to a closed loop while leaving a second set of the pins with unknown ramptime values. One or more closed loops are identified by backtracking from the pins in the second set with unknown ramptime values. A ramptime value for each pin in the one or more closed loops is calculated iteratively.
摘要翻译：描述了一种用于计算具有在一个或多个闭合回路中的定向图中互连的引脚的集成电路布图图案的突发时间传播的方法。对于第一组引脚计算Ramptime值，它们不连接到闭环，同时留下第二组引脚具有未知的ramptime值。一个或多个闭环通过从第二组中的引脚回溯具有未知的ramptime值来识别。迭代地计算一个或多个闭环中每个引脚的ramptime值。

7. 发明申请

US20060112363A1 Multiple buffer insertion in global routing 有权
标题翻译：在全局路由中插入多个缓冲区
公开(公告)号：US20060112363A1
公开(公告)日：2006-05-25
申请号：US10992999
申请日：2004-11-19
申请人： Alexei Galatenko , Elyar Gasanov , Andrej Zolotykh , Ilya Lyalin
发明人： Alexei Galatenko , Elyar Gasanov , Andrej Zolotykh , Ilya Lyalin
IPC分类号： G06F17/50 , G06F9/45
CPC分类号： G06F17/5045
摘要： Buffers are inserted into an integrated circuit chip design using a table that identifies buffer types based on buffer height, input capacitance, output capacitance and ramptime. A buffer routing tree is created having root, internal and leaf vertices. For each internal vertex, the initial circuit parameters are compared to circuit parameters associated with buffers identified in the table to identify whether a buffer identified in the table can be inserted to the respective internal vertex. If it can, an optimal insertable buffer is selected from the table and inserted to a selected internal vertex based at least in part on the comparison results. Also described is a computer process of creating the buffer type table.
摘要翻译：使用基于缓冲器高度，输入电容，输出电容和延迟时间来识别缓冲器类型的表，将缓冲器插入到集成电路芯片设计中。创建具有根，内部和叶子顶点的缓冲区路由树。对于每个内部顶点，将初始电路参数与与表中标识的缓冲器相关联的电路参数进行比较，以识别表中识别的缓冲区是否可以插入到相应的内部顶点。如果可以，则至少部分地基于比较结果，从表中选择最佳可插入缓冲器并将其插入到选定的内部顶点。还描述了创建缓冲器类型表的计算机处理。

8. 发明申请

US20110258587A1 SIGNAL DELAY SKEW REDUCTION SYSTEM 失效
标题翻译：信号延迟减少系统
公开(公告)号：US20110258587A1
公开(公告)日：2011-10-20
申请号：US13173855
申请日：2011-06-30
申请人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykh , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
发明人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykh , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F2217/84
摘要： A system and method are provided for reducing the signal delay skew is disclosed, according to a variety of embodiments. One illustrative embodiment of the present disclosure is directed to a method. According to one illustrative embodiment, the method includes receiving an initial netlist having components and connection paths among the components; identifying a first connection path in the initial netlist that comprises path fragments for which there are no equivalent path fragments in a second connection path in the initial netlist; generating a skew-corrected netlist wherein the second connection path is re-routed to have path fragments equivalent to the path fragments of the first connection path; and outputting the skew-corrected netlist.
摘要翻译：根据各种实施例，提供了一种用于减少信号延迟偏差的系统和方法。本公开的一个说明性实施例涉及一种方法。根据一个说明性实施例，该方法包括：接收在组件之间具有组件和连接路径的初始网表; 识别所述初始网表中的第一连接路径，其包括在所述初始网表中的第二连接路径中不存在等效路径片段的路径片段; 生成偏差校正网表，其中所述第二连接路径被重新路由以具有等同于所述第一连接路径的路径片段的路径片段; 并输出偏差校正的网表。

9. 发明申请

US20090187873A1 SIGNAL DELAY SKEW REDUCTION SYSTEM 有权
标题翻译：信号延迟减少系统
公开(公告)号：US20090187873A1
公开(公告)日：2009-07-23
申请号：US12015925
申请日：2008-01-17
申请人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykh , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
发明人： Andrey Nikitin , Ranko Scepanovic , Igor Kucherenko , William Lau , Cheng-Gang Kong , Hui-Yin Seto , Andrej Zolotykh , Ivan Pavisic , Sandeep Bhutani , Aiguo Lu , Ilya Lyalin
IPC分类号： G06F17/50
CPC分类号： G06F17/505 , G06F2217/84
摘要： A system for reducing the signal delay skew is disclosed, according to a variety of embodiments. One illustrative embodiment of the present disclosure is directed to a method. According to one illustrative embodiment, the method includes receiving an initial netlist comprising components and connection paths among the components. The method further includes identifying one or more skew-influencing features in a first connection path in the initial netlist that lack corresponding skew-influencing features in a second connection path in the initial netlist. The method also includes generating a skew-corrected netlist wherein the second connection path includes one or more added skew-influencing features corresponding to those of the first connection path. The method further includes outputting the skew-corrected netlist.
摘要翻译：根据各种实施例，公开了一种用于减小信号延迟偏差的系统。本公开的一个说明性实施例涉及一种方法。根据一个说明性实施例，该方法包括接收包括组件之间的组件和连接路径的初始网表。该方法还包括识别在初始网表中的第一连接路径中的一个或多个偏斜影响特征，其在初始网表中的第二连接路径中缺少对应的偏斜影响特征。该方法还包括生成偏差校正网表，其中第二连接路径包括与第一连接路径的相应的一个或多个相加的偏斜影响特征。该方法还包括输出经偏斜校正的网表。

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