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    • 3. 发明授权
    • Method of determining signal propagation delay through circuit elements
    • 通过电路元件确定信号传播延迟的方法
    • US5636130A
    • 1997-06-03
    • US498338
    • 1995-07-05
    • Raoul B. SalemVernon R. BrethourWen-Jay HsuRaymond A. HealdSubramanian Ganesan
    • Raoul B. SalemVernon R. BrethourWen-Jay HsuRaymond A. HealdSubramanian Ganesan
    • G06F17/50
    • G06F17/5022
    • A method is provided for accurately determining the propagation delay of a gate under consideration in a static timing analyzer. This is accomplished by determining both the output load and input rise time of the gate under consideration. These values are then compared with a load versus rise time grid having previously determined values of propagation delay (points) for specified combinations of load and input rise time. These points are then used to interpolate a value of propagation delay for the gate under consideration by an interpolation technique that accounts for at least one of the following non-linear effects: the feed forward capacitance of a gate, soft switching, gate resistance, source and drain resistance, and/or other non-linear effects. The method accounts for each non-linear effect by imparting a corresponding component to propagation delay only in that range of output load and input rise time for which that non-linear effect is most pronounced.
    • 提供了一种用于在静态定时分析器中精确地确定考虑的门的传播延迟的方法。 这是通过确定所考虑的门的输出负载和输入上升时间来实现的。 然后将这些值与具有先前确定的负载和输入上升时间的组合的传播延迟(点)值的负载对上升时间网格进行比较。 这些点然后用于通过考虑以下非线性效应中的至少一个的内插技术来内插所考虑的门的传播延迟的值:栅极的前馈电容,软开关,栅极电阻,源极 和漏极电阻,和/或其他非线性效应。 该方法通过仅在该输出负载的范围和非线性效应最显着的输入上升时间赋予相应的分量来传播每个非线性效应。
    • 5. 发明申请
    • Automated Services Procurement Through Multi-Stage Process
    • 通过多阶段过程实现自动化服务采购
    • US20110040857A1
    • 2011-02-17
    • US12539679
    • 2009-08-12
    • Mark CollinsSubramanian Ganesan
    • Mark CollinsSubramanian Ganesan
    • G06F15/177
    • G06F8/61
    • A system which enables a secure network boot to address customer services offerings. The customer service offerings can include on-demand diagnostics to system reinstallation as well as automatic entitlement validation and service installation. Such a system enables a method of network booting that can be secure from beginning to end, is routable in any network configuration that supports Internet routing, avoids traditional infrastructure requirements thereby making the infrastructure more accessible, is extensible to address scaling requirements, is extensible to EFI technology and can be used on existing BIOS option-ROM implementations, provides a better (i.e., simpler, more secure) customer experience for network boot services, provides a multi-stage architecture that allows numerous service offerings to be obtained once entitlement is validated, and provides for both In-Band (OS operational and booted) and Out-of-Band (OS not operational or not installed) access to remote service capabilities.
    • 一种能够进行安全网络启动来解决客户服务产品的系统。 客户服务产品可以包括对系统重新安装的按需诊断以及自动授权验证和服务安装。 这样的系统使得能够从头到尾安全的网络引导方法可在支持因特网路由的任何网络配置中可路由,避免传统的基础架构要求,从而使得基础设施更易于访问,可扩展以满足扩展需求,可扩展到 EFI技术,可用于现有的BIOS选项ROM实现,为网络引导服务提供更好(即更简单,更安全)的客户体验,提供了一个多阶段架构,可以在获得验证后获得许多服务产品 ,并提供带内(OS操作和引导)和带外(操作系统不可操作或未安装)访问远程服务功能。
    • 7. 发明授权
    • Automated services procurement through multi-stage process
    • 通过多阶段流程自动化服务采购
    • US08176150B2
    • 2012-05-08
    • US12539679
    • 2009-08-12
    • Mark CollinsSubramanian Ganesan
    • Mark CollinsSubramanian Ganesan
    • G06F15/177
    • G06F8/61
    • A system which enables a secure network boot to address customer services offerings. The customer service offerings can include on-demand diagnostics to system reinstallation as well as automatic entitlement validation and service installation. Such a system enables a method of network booting that can be secure from beginning to end, is routable in any network configuration that supports Internet routing, avoids traditional infrastructure requirements thereby making the infrastructure more accessible, is extensible to address scaling requirements, is extensible to EFI technology and can be used on existing BIOS option-ROM implementations, provides a better (i.e., simpler, more secure) customer experience for network boot services, provides a multi-stage architecture that allows numerous service offerings to be obtained once entitlement is validated, and provides for both In-Band (OS operational and booted) and Out-of-Band (OS not operational or not installed) access to remote service capabilities.
    • 一种能够进行安全网络启动来解决客户服务产品的系统。 客户服务产品可以包括对系统重新安装的按需诊断以及自动授权验证和服务安装。 这样的系统使得能够从头到尾安全的网络引导方法可在支持因特网路由的任何网络配置中可路由,避免传统的基础架构要求,从而使得基础设施更易于访问,可扩展以满足扩展需求,可扩展到 EFI技术,可用于现有的BIOS选项ROM实现,为网络引导服务提供更好(即更简单,更安全)的客户体验,提供了一个多阶段架构,可以在获得验证后获得许多服务产品 ,并提供带内(OS操作和引导)和带外(操作系统不可操作或未安装)访问远程服务功能。
    • 10. 发明授权
    • Generating user clocks for a prototyping environment
    • 为原型环境生成用户时钟
    • US08595683B1
    • 2013-11-26
    • US13445618
    • 2012-04-12
    • Philip H. de BurenSubramanian GanesanJinny Singh
    • Philip H. de BurenSubramanian GanesanJinny Singh
    • G06F17/50H03K19/173G06F9/455
    • G06F17/5054G06F2217/62
    • A method and apparatus for generating user clocks in a prototyping system is disclosed. A prototyping system has a plurality of programmable logic chips that are each programmed with one or more partition of a prototyped circuit design. For a circuit design having multiple user clock signals, each partition uses some or all of the user clocks. A reference clock signal is externally generated, and received by each of the programmable logic chips. Using a phase-locked loop, a plurality of in-phase higher frequency clock signals are generated from the reference clock signal. The user clock signals are then generated from these higher frequency signals using a plurality of divider circuits. Reset circuitry implemented in one of the programmable logic chips transmits a common reset signal to the divider circuits, maintaining the phase relationship of each user clock across the programmable logic chips.
    • 公开了一种用于在原型系统中生成用户时钟的方法和装置。 原型系统具有多个可编程逻辑芯片,每个可编程逻辑芯片用原型电路设计的一个或多个分区进行编程。 对于具有多个用户时钟信号的电路设计,每个分区使用部分或全部用户时钟。 外部产生参考时钟信号,并由每个可编程逻辑芯片接收。 使用锁相环,从参考时钟信号产生多个同相较高频率的时钟信号。 然后使用多个分频器电路从这些较高频率信号生成用户时钟信号。 在可编程逻辑芯片之一中实现的复位电路将公共复位信号发送到分频器电路,保持每个用户时钟在可编程逻辑芯片之间的相位关系。