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    • 64. 发明申请
    • COOLING-CONTROL TECHNIQUE FOR USE IN A COMPUTER SYSTEM
    • 用于计算机系统的冷却控制技术
    • US20100315223A1
    • 2010-12-16
    • US12485221
    • 2009-06-16
    • Kenny C. GrossKalyanaraman Vaidyanathan
    • Kenny C. GrossKalyanaraman Vaidyanathan
    • G08B23/00G05D23/19
    • G06F1/206G05B13/048G05D23/1931G05D23/22Y02D10/16
    • A method for providing control signals to a fan in a computer system is described. During the method, an electronic device receives temperature measurements and a fan-speed measurement performed in the computer system. Using a pattern-recognition model, the electronic device validates the measurements, and excludes any inaccurate measurements, such as those associated with drifting or failed sensors. Next, the electronic device determines control signals for a fan in the computer system using a model of coolant flow in the computer system and/or a slope of a phase-frequency curve of a cross power spectral density function corresponding to a pair of temperature profiles measured, as a function of time, by a pair of thermal sensors. Then, the determined control signals are provided to the fan.
    • 描述了一种用于向计算机系统中的风扇提供控制信号的方法。 在该方法期间,电子设备接收在计算机系统中执行的温度测量和风扇速度测量。 使用模式识别模型,电子设备验证测量,并排除任何不精确的测量,例如与漂移或失败的传感器相关的测量。 接下来,电子设备使用计算机系统中的冷却剂流的模型和/或对应于一对温度分布的交叉功率谱密度函数的相位 - 频率曲线的斜率来确定计算机系统中的风扇的控制信号 通过一对热传感器测量,作为时间的函数。 然后,将确定的控制信号提供给风扇。
    • 66. 发明申请
    • MITIGATING MECHANICAL VIBRATIONS CAUSED BY A FAN IN A COMPUTER SYSTEM
    • 减轻计算机系统风扇引起的机械振动
    • US20100284781A1
    • 2010-11-11
    • US12435976
    • 2009-05-05
    • Steven F. ZwingerKenny C. GrossAleksey M. Urmanov
    • Steven F. ZwingerKenny C. GrossAleksey M. Urmanov
    • F04D27/00F04D29/66G06F1/20
    • G06F1/20F04D27/00F04D29/668
    • One embodiment provides a system that mitigates vibrations caused by cooling fans in a computer system. More specifically, the system includes a cooling fan mechanically coupled to the chassis of the computer system, wherein vibrations generated by the cooling fan are coupled to the chassis. The system also includes an actuation mechanism that creates a relative displacement between the cooling fan and the chassis when a control signal is applied to the actuation mechanism. The system additionally includes a detection mechanism which detects the relative displacement and generates a feedback signal which represents the relative displacement. The system further includes a control signal generation mechanism which converts the feedback signal into the control signal, which is subsequently applied to the actuation mechanism. When the control signal is applied to the actuation mechanism, the relative displacement between the cooling fan and the chassis vibrationally decouples the cooling fan from the chassis.
    • 一个实施例提供了一种减轻由计算机系统中的冷却风扇引起的振动的系统。 更具体地,该系统包括机械地联接到计算机系统的底盘的冷却风扇,其中由冷却风扇产生的振动耦合到底盘。 该系统还包括致动机构,当致动机构施加控制信号时,致动机构在冷却风扇和底盘之间产生相对位移。 该系统还包括检测相对位移的检测机构,并产生表示相对位移的反馈信号。 该系统还包括控制信号产生机构,其将反馈信号转换成控制信号,该控制信号随后被施加到致动机构。 当控制信号被施加到致动机构时,冷却风扇和底盘之间的相对位移使冷却风扇与底盘振动地分离。
    • 68. 发明申请
    • DETERMINING THE FLOW RATE OF AIR IN A COMPUTER SYSTEM
    • 确定计算机系统中的空气流量
    • US20100139360A1
    • 2010-06-10
    • US12331834
    • 2008-12-10
    • Kenny C. GrossKalyanaraman Vaidyanathan
    • Kenny C. GrossKalyanaraman Vaidyanathan
    • G01F25/00G01F1/68
    • G01F1/684G01F1/6842G01F1/6965
    • Some embodiments of the present invention provide a system that determines a flow rate of air along an airflow path in a computer system. During operation the system monitors a first temperature profile from a first temperature sensor located in a first position in the airflow path, and monitors a second temperature profile from a second temperature sensor located in a second position in the airflow path, wherein the first position is upstream in the airflow path from the second position, and wherein the first position and the second position are separated by a predetermined distance along the airflow path. Next, the system computes a cross-power spectral density based on the first temperature profile and the second temperature profile. Then, the system determines a flow rate of air in the computer system based on the cross-power spectral density.
    • 本发明的一些实施例提供了一种确定沿计算机系统中的气流路径的空气流量的系统。 在操作期间,系统监测来自位于气流路径中的第一位置的第一温度传感器的第一温度分布,并且监测来自位于气流路径中的第二位置的第二温度传感器的第二温度分布,其中第一位置是 在第二位置的气流路径中上游,并且其中第一位置和第二位置沿着气流路径分开预定距离。 接下来,系统基于第一温度曲线和第二温度曲线来计算交叉功率谱密度。 然后,系统基于交叉功率谱密度来确定计算机系统中的空气流量。
    • 70. 发明授权
    • Method and apparatus for detecting memory leaks in computer systems
    • 用于检测计算机系统中的内存泄漏的方法和装置
    • US07716648B2
    • 2010-05-11
    • US11195015
    • 2005-08-02
    • Kalyanaraman VaidyanathanSajjit ThampyKenny C. Gross
    • Kalyanaraman VaidyanathanSajjit ThampyKenny C. Gross
    • G06F9/44
    • G06F11/3452G06F12/023
    • A system that identifies processes with a memory leak in a computer system. During operation, the system periodically samples memory usage for processes running on the computer system. The system then ranks the processes by memory usage and selects a specified number of processes with highest memory usage based on the ranking. For each selected process, the system computes a first-order difference of memory usage by taking a difference between the memory usage at a current sampling time and the memory usage at an immediately preceding sampling time. The system then generates a memory-leak index based on the first-order difference and a preceding memory-leak index computed at the immediately preceding sampling time.
    • 识别计算机系统中内存泄漏的进程的系统。 在运行期间,系统会周期性地对运行在计算机系统上的进程进行内存使用。 然后,系统通过内存使用对进程进行排序,并根据排名选择具有最高内存使用量的指定数量的进程。 对于每个所选择的处理,系统通过取得当前采样时间的存储器使用量与紧接在前的采样时间的存储器使用量之间的差异来计算存储器使用的一阶差。 然后,系统基于一阶差异和在紧接在前的采样时间计算的先前的存储器 - 泄漏索引来生成内存泄漏索引。