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    • 1. 发明申请
    • SYNCHRONOUS CLOCK STOP IN A MULTI NODAL COMPUTER SYSTEM
    • 多节点计算机系统中的同步时钟停止
    • US20120005516A1
    • 2012-01-05
    • US13170466
    • 2011-06-28
    • Tobias BERGMANNRalf LUDEWIGTobias WEBELUlrich WEISS
    • Tobias BERGMANNRalf LUDEWIGTobias WEBELUlrich WEISS
    • G06F1/12
    • G06F1/12G06F1/3237Y02D10/128
    • A computer system is provided which includes a plurality of nodes, which include chips of different types. In each node, one of the chips is configured as a master chip, which is connected to one or more slave chips via two or more multi-drop nets (e.g., checkstop, clockrun). The master chip and the slave chips are connected to a reference clock, and event triggering information is transmitted via the multi-drop nets (checkstop, clockrun) to the slave chips. Event trigger commands are submitted by the master chip when it receives a request, and internal offset counters are used to adjust both the receiving cycle and the cycle when the command is propagated to the units on the chips. In operation, the offset counters are synchronized by a reference clock.
    • 提供一种计算机系统,其包括多个节点,其包括不同类型的芯片。 在每个节点中,一个芯片被配置为主芯片,其通过两个或更多个多点网络(例如,checkstop,clockrun)连接到一个或多个从芯片。 主芯片和从芯片连接到参考时钟,事件触发信息通过多点网络(checkstop,clockrun)发送到从芯片。 事件触发命令由主芯片在接收到请求时提交,内部偏移计数器用于在命令传播到芯片上的单元时调整接收周期和周期。 在运行中,偏移计数器由参考时钟同步。
    • 2. 发明授权
    • Adder structure with midcycle latch for power reduction
    • 加法器结构带有中间锁闩,用于降低功率
    • US08086657B2
    • 2011-12-27
    • US12099973
    • 2008-04-09
    • Wilhelm HallerRolf SautterChristoph WandelUlrich Weiss
    • Wilhelm HallerRolf SautterChristoph WandelUlrich Weiss
    • G06F7/50
    • H03K19/0941H03K19/0008
    • A digital adder circuit comprising a plurality of logical stages in the carry logic of said adder circuit, for generating and propagating predetermined groups of operand bits, each stage implementing a predetermined logic function and processing input variables from a preceding stage and outputting result values to a succeeding stage static and dynamic logic in the carry network of a 4-bit adder, and with output from the first stage fed directly as an input (60, 62) to the third stage of the carry network. Preferably, stages having normally relatively high switching activities are implemented in static logic. Preferably, the first stage of its carry network is implemented in a static logic, and the rest of the stages in dynamic logic.
    • 一种数字加法器电路,包括在所述加法器电路的进位逻辑中的多个逻辑级,用于产生和传播预定的操作数位组,每个级实现预定的逻辑功能,并处理来自前一级的输入变量,并将结果值输出到 4位加法器的进位网络中的后级静态和动态逻辑,并且来自第一级的输出直接作为输入(60,62)馈送到进位网络的第三级。 优选地,具有通常相对较高切换活动的阶段在静态逻辑中实现。 优选地,其进位网络的第一级是以静态逻辑实现的,其余的级在动态逻辑中。
    • 3. 发明授权
    • Method and apparatus for fault tolerant time synchronization mechanism in a scaleable multi-processor computer
    • 可扩展多处理器计算机中的容错时间同步机制的方法和装置
    • US07761726B2
    • 2010-07-20
    • US12116652
    • 2008-05-07
    • Scott Barnett SwaneyKenneth Lundy WardTobias WebelUlrich WeissMatthias Woehrle
    • Scott Barnett SwaneyKenneth Lundy WardTobias WebelUlrich WeissMatthias Woehrle
    • G06F1/12
    • G06F11/1604G06F1/14G06F11/20
    • Redundant time-of-day (TOD) oscillators are aligned, within a master oscillator path, to local logic oscillator and used to create independent step-sync signals. A step checker validates and provides selection signals to identify which of the TOD oscillators operates according to a criterion. Independent step-sync signals are transmitted to several sibling chips. Local step and sync signals are delayed to arrive at TOD register nearly synchronous with TOD registers in sibling chips. A slave oscillator path may be used to select time signals generated in a sibling chip, whereby the master oscillator path is deselected. A primary control register set may be used to configure which among several chips is a master chip using the master oscillator path. All remaining chips are slave chips. All segments of the topology are redundant. One of multiple possible alternate topologies is defined in a secondary control register set. Commands and TOD values are passed on the fabric at predefined time increment boundaries to establish, restore, or maintain synchronization across all chips.
    • 冗余时钟(TOD)振荡器在主振荡器路径内对准本地逻辑振荡器,并用于创建独立的步进同步信号。 步骤检验器验证并提供选择信号,以根据标准识别哪个TOD振荡器工作。 独立的步进同步信号被传送到几个同级芯片。 本地步进和同步信号被延迟到TOD寄存器,与同步芯片中的TOD寄存器几乎同步。 可以使用从属振荡器路径来选择在同级芯片中产生的时间信号,由此主振荡器路径被取消选择。 主控制寄存器组可以用于使用主振荡器路径来配置几个芯片中的哪一个是主芯片。 所有剩余的芯片都是从芯片。 拓扑的所有段都是冗余的。 多个可能的替代拓扑中的一个在二次控制寄存器集中被定义。 命令和TOD值以预定义的时间增量边界在结构上传递,以建立,恢复或维持所有芯片之间的同步。
    • 4. 发明授权
    • Method and apparatus for fault tolerant time synchronization mechanism in a scaleable multi-processor computer
    • 可扩展多处理器计算机中的容错时间同步机制的方法和装置
    • US07487377B2
    • 2009-02-03
    • US11054294
    • 2005-02-09
    • Scott Barnett SwaneyKenneth Lundy WardTobias WebelUlrich WeissMatthias Woehrle
    • Scott Barnett SwaneyKenneth Lundy WardTobias WebelUlrich WeissMatthias Woehrle
    • G06F13/42
    • G06F11/1604G06F1/14G06F11/20
    • Redundant time-of-day (TOD) oscillators are aligned, within a master oscillator path, to local logic oscillator and used to create independent step-sync signals. A step checker validates and provides selection signals to identify which of the TOD oscillators operates according to a criterion. Independent step-sync signals are transmitted to several sibling chips. Local step and sync signals are delayed to arrive at TOD register nearly synchronous with TOD registers in sibling chips. A slave oscillator path may be used to select time signals generated in a sibling chip, whereby the master oscillator path is deselected. A primary control register set may be used to configure which among several chips is a master chip using the master oscillator path. All remaining chips are slave chips. All segments of the topology are redundant. One of multiple possible alternate topologies is defined in a secondary control register set. Commands and TOD values are passed on the fabric at predefined time increment boundaries to establish, restore, or maintain synchronization across all chips.
    • 冗余时钟(TOD)振荡器在主振荡器路径内对准本地逻辑振荡器,并用于创建独立的步进同步信号。 步骤检验器验证并提供选择信号,以根据标准识别哪个TOD振荡器工作。 独立的步进同步信号被传送到几个同级芯片。 本地步进和同步信号被延迟到TOD寄存器,与同步芯片中的TOD寄存器几乎同步。 可以使用从属振荡器路径来选择在同级芯片中产生的时间信号,由此主振荡器路径被取消选择。 主控制寄存器组可以用于使用主振荡器路径来配置几个芯片中的哪一个是主芯片。 所有剩余的芯片都是从芯片。 拓扑的所有段都是冗余的。 多个可能的替代拓扑中的一个在二次控制寄存器集中被定义。 命令和TOD值以预定义的时间增量边界在结构上传递,以建立,恢复或维持所有芯片之间的同步。
    • 10. 发明申请
    • REUSABLE STRUCTURED HARDWARE DESCRIPTION LANGUAGE DESIGN COMPONENT
    • 可重复使用的结构硬件描述语言设计组件
    • US20120117524A1
    • 2012-05-10
    • US12940762
    • 2010-11-05
    • Friedhelm KesslerThomas M. MakowskiHarald MielichUlrich Weiss
    • Friedhelm KesslerThomas M. MakowskiHarald MielichUlrich Weiss
    • G06F17/50
    • G06F17/5045
    • A method includes removing a code segment from a hardware description language design to create a modified hardware description language design. The code segment represents at least one time sensitive path in the hardware description language design. The method includes creating a delta list of differences between the modified hardware description language design and a physical hardware representation that is logically equivalent to the hardware description language design. The method includes extracting a portion of the physical hardware representation that corresponds to the time sensitive path based, at least in part, on the delta list. The method also includes creating a structured hardware description language design of the time sensitive path using the extracted portion of the physical hardware representation, wherein the structured hardware description language design comprises structural information of the extracted portion of the physical hardware representation.
    • 一种方法包括从硬件描述语言设计中移除代码段以创建修改的硬件描述语言设计。 代码段表示硬件描述语言设计中至少一个时间敏感的路径。 该方法包括创建经修改的硬件描述语言设计与在逻辑上等同于硬件描述语言设计的物理硬件表示之间的差异的增量列表。 该方法包括至少部分地基于增量列表提取对应于时间敏感路径的物理硬件表示的一部分。 该方法还包括使用所提取的物理硬件表示的部分来创建时间敏感路径的结构化硬件描述语言设计,其中所述结构化硬件描述语言设计包括所提取的所述物理硬件表示部分的结构信息。