Abstract: Embodiments of the virtual machine power metering system and method measure the power consumption of individual virtual machines. Power meter measurements for a physical host server are converted into individual virtual machine power meters that measure the power consumption of each individual virtual machine residing on the host server. The virtual machine power consumption is computed by generating a power model using the total power consumption of the host server and resource utilization for a virtual machine. Optimal power model coefficients are computed using the power model. The energy used by the virtual machine is computed using one of two embodiments. Embodiments of the system and method also can be used to obtain the power consumption for a specific activity (such as a service, request, or search query). In addition, the virtual machine power metering can be used for virtual machine power capping to allow power oversubscription in virtualized environments.

Abstract: A device having multiple cores executes an algorithm to control Thin-Film Thermoelectric Coolers (TFTEC) that employ the Peltier effect to remove heat from the various cores of the multi-core processor. The algorithms may combine Thread Migration (TM) and Dynamic Voltage/Frequency Scaling (DVFS) to provide Dynamic Thermal Management (DTM) and TFTEC control.

Abstract: A method of power management is provided. The method includes detecting an event, assign a first responsibility to a first graphics processing unit (GPU) and a second responsibility to second GPU, and changing a power state of the first and second GPUs based on the first and second responsibilities, respectively. The first responsibility is different from the second responsibility.

Abstract: In a method for controlling a screen protection function of a portable electronic device, the portable electronic device includes a gravity sensor, a display screen, and a storage system. The gravity sensor detects a horizontal vector and a vertical vector of a gravitational acceleration of the portable electronic device, and a tilt angle of the portable electronic device is calculated according to the horizontal vector and the vertical vector. The method activates a screen protection program of the portable electronic device to control the display screen to enter into a power saving mode if the tilt angle exceeds a preset tilt angle range stored in the storage system, and terminates the screen protection program to control the display screen to enter into a normal display mode if the tilt angle does not exceed the preset tilt angle range.

Abstract: A system-on-chip (SoC) is provided with a low power processor to manage power-save mode operations. The SoC has a high-speed group with a high-speed processor, a standby agent, and a governor. In response to inactivity, the governor establishes a power-save mode and deactivates the high-speed group, but not the standby agent. The standby agent monitors SoC input/output (IO) interfaces, and determines the speed requirements associated with a received communication. In response to determining that the communication does not prompt a high-speed SoC operation, the standby agent responds to the communication. Likewise, the standby agent monitors SoC internal events such as housekeeping and timer activity, and the standby performs the tasks if it is determined that the tasks do not require a high-speed SoC operation. Alternatively, if monitored communication or internal event prompts a high-speed SoC operation, the governor activates a member of the high-speed group.

Abstract: A Delay-tolerant Asynchronous Interface (DANI) is typically used to make the clock domains for reusable silicon intellectual property (IP) cores completely independent of each other. In fact, a DANI-wrapped IP core usually appears to its environment as if it were clockless. This property is necessary to address the variability in data transmission-time between source and destination. This variability is a result of increased lack of predictability in today's leading-edge manufacturing processes. A DANI wrapper can be applied to the IP core that is the source of data to be transmitted or it can be applied to the IP core that is the destination of that data. The transmission time over the route between source and destination may vary more than a single clock period.

Abstract: A power matching system is applied to a central processing unit (CPU) power supply, which includes a power control chip to regulate the frequency of the signal applied to the CPU power supply. The power control chip includes a detecting pin. The power matching system includes a control unit and a control circuit. The control unit includes a platform controller hub (PCH) to obtain information concerning a CPU, a basic input output system (BIOS) to obtain a power rating of the CPU, and an integrated baseboard management controller (IBMC) to output a required signal to the control circuit according to the power rating established. The power control chip receives the required signal from the control circuit and regulates the frequency of the signal applied to the CPU power supply.

Abstract: Within a system of integrated circuit devices, first and second signals are transmitted intermittently from a first integrated circuit device to a second integrated circuit device. The second integrated circuit device generates a timing signal based on transitions of the second signal and generates samples of the first signal in response to transitions of the timing signal. The second integrated circuit device further generates timing error information based on the samples of the first signal, the timing error information to enable adjustment of the relative phases of the timing signal and the first signal.

Abstract: An interface card is capable of communicating with an external device and includes a power supplier; a non-volatile memory which stores executable instructions to operate in an active-mode and a sleep-mode; a small-capacity volatile memory which is supplied with power in the sleep mode; a transmitter-receiver which transmits and receives packet data to/from the external device; and a controller which retrieves sleep-mode instructions stored in the non-volatile memory and loads the sleep mode instructions in the small-capacity volatile memory to transition the interface card into the sleep mode if the transmitter-receiver does not receive the packet data for predetermined time period in an active mode. The interface card processes certain packet data in the sleep mode and transitions back into the active mode when sleep mode operations determine that the packet data cannot be processed in the sleep mode.

Abstract: A device having multiple cores executes an algorithm to control Thin-Film Thermoelectric Coolers (TFTEC) that employ the Peltier effect to remove heat from the various cores of the multi-core processor. The algorithms may combine Thread Migration (TM) and Dynamic Voltage/Frequency Scaling (DVFS) to provide Dynamic Thermal Management (DTM) and TFTEC control.

Abstract: This document describes techniques for detecting state loss on a device. These techniques permit a computer connected to a device to forgo, in many cases, reinitializing the device when returning to a normal-power mode.

Abstract: A method and system for automatically transitioning configuration settings among computer systems. Multiple configuration settings comprising a computer “personality” are located on a source computing system using multiple transition rules from a personality object. The computer personality includes customization choices, data files, electronic mail, system preferences, application customization choices, the network environment, browser information, etc. The configuration settings are extracted from multiple locations on the source computing system. The multiple extracted configuration settings are stored in a pre-determined transition format. The multiple extracted configuration settings are manipulated. A transition package is created from the multiple manipulated configuration settings. The transition package includes the multiple manipulated configuration settings. The transition package is sent to a target computing system.

Abstract: Techniques to provide processor state for implementing a power state transition of a processor. In an embodiment, an operating system executing on a processor detects an opportunity to transition the processor to an idle processor power state. In particular embodiments, the operating system initiates the transition by invoking a task switch, wherein information describing a state of the processor is saved to a task switch segment.

Abstract: A method for operating a field device of process automation technology, wherein the field device features a fieldbus communication interface, to which a wireless adapter is connected. The field device can be supplied with electrical power by the wireless adapter via the fieldbus communication interface; and an electrical current flowing over the fieldbus communication interface is not limited, so that it can freely adjust corresponding to a respective power requirement.

Abstract: A power providing system for an electrical device includes a secondary inductor, wired to the electrical device, for inductively coupling with a primary inductor hardwired to a power supply. The secondary inductor is incorporated into an accessory of the electrical device.

Abstract: Described is a technology by which a virtual hard disk is maintained between a far (e.g., remote) backing store and a near (e.g., local) backing store, which among other advantages facilitates fast booting of a machine coupled to the virtual hard disk. Read requests are serviced from the near backing store (e.g., a differencing layer) when the data is available thereon, or from the far backing store (e.g., a base layer) when not. The near backing store may be configured with a cache layer that corresponds to the base layer and a write differencing layer that stores writes, or a single differencing layer may be used for both caching read data and for storing write data. A background copy operation may be used to fill the cache until the far backing store data is no longer needed.

Abstract: Methods and reconfigurable systems are provided for monitoring the health of a complex system. The reconfigurable system comprises a plurality of standardized executable application modules containing instructions to perform one of a plurality of different standardized functions. The system further comprises a plurality of computing nodes arranged in a hierarchical structure comprising one or more layers of computing nodes. Each computing node of the plurality runs a host application and a workflow service module, each computing node thereby being configured by a configuration file that directs the execution of any of the standardized executable application modules in a cooperative fashion by the host application via the workflow service module.

Abstract: Accessory device authentication techniques are described. In one or more embodiments, connection of an accessory device to a host computing device is detected. Responsive to the detection, an authentication sequence may occur to verify an identity and/or capabilities of the accessory device. Upon successful authentication of the accessory device, the host device may authorize the accessory device for power exchange interactions with the host device. The host device may then draw supplemental power from a power source associated with the authorized accessory device, such as a battery or power adapter. The host device may also enable the accessory device to obtain and use power supplied by the host device in some scenarios. Power exchange between a host device and an authorized accessory may be managed in accordance with capabilities of the accessory device that are identified during authentication.

Abstract: A system and method for providing automatic or semi-automatic identity association between an outlet of an intelligent power distribution unit and a target device, such as a computer server, which is powered by that outlet. The association is accomplished by enabling identification information to be transmitted between a memory device near or within the target device and the intelligent power distribution unit via a power cable. The power cable may include a specialized interface for mating with the power distribution unit and/or providing the identification information.

Abstract: A power management method adapted in a computer system is provided. The computer system includes a main monitor and a host. A management method includes the following steps. First, whether the main monitor is turned off or not is determined. When the main monitor is turned off, a power saving program is executed to reduce the power of the host. Furthermore, a computer system applying the above power management method is also provided.