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    • 65. 发明授权
    • Energy-saving circuit and method using charge equalization across complementary nodes
    • 节能电路和方法在互补节点上使用电荷均衡
    • US07545176B2
    • 2009-06-09
    • US11923714
    • 2007-10-25
    • Vikas AgarwalSanjay DubeySaiful IslamGaurav Mittal
    • Vikas AgarwalSanjay DubeySaiful IslamGaurav Mittal
    • H03K19/0175H03K19/094
    • H03K5/151H03K19/0008
    • An energy-saving circuit and method using charge equalization across complementary nodes reduces power consumption in memory circuits and other circuits such as wide multiplexers having complementary high-capacitance nodes. A change detection circuit detects a state change to be applied to the bitlines, and generates a pulse if a state change is to be applied. A pass gate connected between the nodes is activated in response to the pulse to equalize the charge on the bitlines. The driver circuit enable inputs are also delayed, so that the bitlines are not driven until after the charge has been equalized and the pass gate disabled. In one embodiment, the driver circuits are only enabled momentarily by a pulsed output of the change detector and keeper circuits are employed to retain the bitlines in their asserted states.
    • 在互补节点上使用电荷均衡的节能电路和方法降低存储器电路和其它电路中的功耗,例如具有互补高电容节点的宽多路复用器。 改变检测电路检测要施加到位线的状态变化,并且如果要施加状态改变则产生脉冲。 连接在节点之间的通过门被响应于脉冲激活以均衡位线上的电荷。 驱动电路使能输入也被延迟,使得位线不被驱动,直到电荷被均衡并且通路禁止。 在一个实施例中,驱动器电路仅通过变化检测器的脉冲输出暂时使能,并且使用保持器电路将位线保持在其断言状态。
    • 66. 发明申请
    • ENERGY-SAVING CIRCUIT AND METHOD USING CHARGE EQUALIZATION ACROSS COMPLEMENTARY NODES
    • 节能电路和使用充电均衡的方法
    • US20090108920A1
    • 2009-04-30
    • US11923714
    • 2007-10-25
    • Vikas AgarwalSanjay DubeySaiful IslamGaurav Mittal
    • Vikas AgarwalSanjay DubeySaiful IslamGaurav Mittal
    • G05F1/10
    • H03K5/151H03K19/0008
    • An energy-saving circuit and method using charge equalization across complementary nodes reduces power consumption in memory circuits and other circuits such as wide multiplexers having complementary high-capacitance nodes. A change detection circuit detects a state change to be applied to the bitlines, and generates a pulse if a state change is to be applied. A pass gate connected between the nodes is activated in response to the pulse to equalize the charge on the bitlines. The driver circuit enable inputs are also delayed, so that the bitlines are not driven until after the charge has been equalized and the pass gate disabled. In one embodiment, the driver circuits are only enabled momentarily by a pulsed output of the change detector and keeper circuits are employed to retain the bitlines in their asserted states.
    • 在互补节点上使用电荷均衡的节能电路和方法降低存储器电路和其它电路中的功耗,例如具有互补高电容节点的宽多路复用器。 改变检测电路检测要施加到位线的状态变化,并且如果要施加状态改变则产生脉冲。 连接在节点之间的通过门被响应于脉冲激活以均衡位线上的电荷。 驱动电路使能输入也被延迟,使得位线不被驱动,直到电荷被均衡并且通路禁止。 在一个实施例中,驱动器电路仅通过变化检测器的脉冲输出暂时使能,并且使用保持器电路将位线保持在其断言状态。
    • 67. 发明授权
    • System and method for collection, aggregation, and composition of metrics
    • 用于收集,聚合和组合度量的系统和方法
    • US07509414B2
    • 2009-03-24
    • US10976941
    • 2004-10-29
    • Vikas AgarwalWilliam P. HornArun Kumar
    • Vikas AgarwalWilliam P. HornArun Kumar
    • G06F15/173
    • G06Q30/02G06F9/546
    • A method for collecting, aggregating, and composing metrics and a computer system comprises a producer application adapted to periodically generate metrics comprising state information of the producer application; a metric engine adapted to aggregate the metrics; and a consumer application adapted to receive the aggregated metrics, wherein the metric engine is further adapted to produce new metrics in accordance with desired requirements of the consumer application. The computer system further comprises a metric service policy adapted to provide definitions of the metrics generated from the producer application and desired requirements of the consumer application, wherein the metric service policy is adapted to establish an executable set of actions for producing the new metrics from the generated metrics, wherein the metric service policy is adapted to be executable by the metric engine, and wherein multiple metric service policies are simultaneously executable by the metric engine.
    • 用于收集,聚合和组合度量的方法以及计算机系统包括适于周期性地生成包括生产者应用的状态信息的度量的生成器应用; 适于聚合度量的度量引擎; 以及适于接收所述聚合度量的消费者应用,其中所述度量引擎还适于根据所述消费者应用的期望要求产生新的度量。 计算机系统还包括适于提供从生产者应用程序产生的度量的定义和消费者应用程序的期望需求的度量服务策略,其中度量服务策略适于建立可执行的一组动作,用于从 其中所述度量服务策略适于由所述度量引擎执行,并且其中多个度量服务策略可由所述度量引擎同时执行。
    • 68. 发明申请
    • Method and Apparatus for Self-Contained Automatic Decoupling Capacitor Switch-Out in Integrated Circuits
    • 集成电路中自包含自动去耦电容开关的方法和装置
    • US20080251888A1
    • 2008-10-16
    • US11733435
    • 2007-04-10
    • Vikas AgarwalAsit S. AmbekarSanjay DubeySaiful Islam
    • Vikas AgarwalAsit S. AmbekarSanjay DubeySaiful Islam
    • H01L27/02
    • H01L27/0805G06F1/26H01L27/0629Y10T307/865
    • An integrated circuit (IC) includes power supply interconnects that couple to a power source. The integrated circuit includes electronic devices that perform desired functions and further includes decoupling capacitor circuits that provide noise reduction throughout the integrated circuit. In one embodiment, each decoupling capacitor circuit includes a decoupling capacitor and a switching circuit. The switching circuit connects the decoupling capacitor to the power supply interconnects during a connect mode when the switching circuit detects no substantial decoupling capacitor leakage. However, the switching circuit effectively disconnects the decoupling capacitor from the power supply interconnects during a disconnect mode when the switching circuit detects substantial decoupling capacitor leakage. The decoupling capacitor circuit self-initializes in the connect mode without external control signals and is thus self-contained. Because of the self-contained nature of the decoupling capacitor circuit, an integrated circuit may contain an array of decoupling capacitor circuits without expenditure of substantial chip real estate for respective decoupling capacitor control lines.
    • 集成电路(IC)包括耦合到电源的电源互连。 集成电路包括执行所需功能的电子器件,还包括在整个集成电路中提供降噪的去耦电容器电路。 在一个实施例中,每个去耦电容器电路包括去耦电容器和开关电路。 当开关电路检测到没有实质的去耦电容器泄漏时,开关电路在连接模式期间将去耦电容器连接到电源互连。 然而,当开关电路检测到实质的去耦电容器泄漏时,开关电路在断开模式期间有效地将去耦电容器与电源互连件断开。 去耦电容电路在连接模式下自我初始化,无需外部控制信号,因此是独立的。 由于去耦电容电路的自包含性质,集成电路可能包含一个去耦电容电路的阵列,而不需要相应的去耦电容器控制线的大量芯片空间。
    • 70. 发明申请
    • Method and System for Verifying Performance of an Array by Simulating Operation of Edge Cells in a Full Array Model
    • 通过在全阵列模型中模拟边缘单元的操作来验证阵列性能的方法和系统
    • US20070245279A1
    • 2007-10-18
    • US11279312
    • 2006-04-11
    • Vikas AgarwalMichael Hyeok LeePhilip Shephard
    • Vikas AgarwalMichael Hyeok LeePhilip Shephard
    • G06F17/50
    • G06F17/5022
    • A method and system for verifying performance of an array by simulating operation of edge cells in a full array model reduces the computation time required for complete design verification. The edge cells of the array (or each subarray if the array is partitioned) are subjected to a timing simulation while the center cells of the array are logically disabled, but remain in the circuit model, providing proper loading. Additional cells are specified for simulation if calculations indicate a worst-case condition due to a non-edge cell. Wordline arrivals are observed to determine worst-case rows for selection. For write operations, the difference between the wordline edges and the data edges is used to locate any non-edge “outlier” cells. For read operations, the wordline delays are summed with the bitline delays determined from edge column data to locate any outliers.
    • 通过模拟全阵列模型中的边缘单元的操作来验证阵列的性能的方法和系统减少了完整设计验证所需的计算时间。 阵列的边缘单元(或阵列分割的每个子阵列)经受定时仿真,而阵列的中心单元在逻辑上被禁用,但保留在电路模型中,从而提供适当的加载。 如果计算指示由于非边缘单元造成的最坏情况,则指定额外的单元用于模拟。 观察到字线到达以确定最坏情况行进行选择。 对于写入操作,字边和数据边之间的差异用于定位任何非边缘“异常值”单元。 对于读取操作,字线延迟与从边沿列数据确定的位线延迟相加以定位任何异常值。