Abstract: Power management systems and methods that facilitate efficient and effective power conservation are presented. In one embodiment a power management method comprises: performing an initiation metric determination process, and adjusting operations of a logic component based on said threshold value. In one exemplary implementation, the initiation metric determination process includes monitoring activity of a logic component, and establishing a power conservation initiation threshold value. The initiation metric determination process can include performing a system architecture characteristic analysis in which a system architecture power-consumption break-even time (BE) is determined for the system. The initiation metric determination process can also include performing a system utilization analysis process is performed in which idle period durations detected during said monitoring are sorted into a variety of different length intervals and analyzed accordingly.

Abstract: Systems and methods are disclosed for asynchronous management of access requests to control power consumption. In some cases, by asynchronously managing power within a system, multiple dies of a NVM can simultaneously draw current in order to match the power demand. In particular, an arbiter of the system can receive multiple requests to draw current, where each request may be associated with a different die of the NVM. In some embodiments, the arbiter can determine the servicing order using the time of arrival of the request (e.g., a first-in, first-out scheme). In other embodiments, the arbiter can simultaneously service multiple requests so long as the servicing of the multiple requests does not exceed a power budget.

Abstract: In an embodiment, a processor includes a core domain with a plurality of cores and a power controller having a first logic to receive a first request to increase an operating voltage of a first core of the core domain to a second voltage, to instruct a voltage regulator to increase the operating voltage to an interim voltage, and to thereafter instruct the voltage regulator to increase the operating voltage to the second voltage. Other embodiments are described and claimed.

Abstract: A portable electronic device having automatic power supply mode switching is provided. The portable electronic device includes a micro-sensor and a control circuit. The control circuit controls operations of the electronic device, the micro-sensor senses whether the electronic device is carried or worn by a user. When the electronic device operates in a normal mode, and if the electronic device is not carried or worn for a time longer than a buffer period of a predetermined interval, the control circuit switches to a sleep mode, which results in lower power consumption.

Abstract: A method and apparatus for dynamically controlling a cache size is disclosed. In one embodiment, a method includes changing an operating point of a processor from a first operating point to a second operating point, and selectively removing power from one or more ways of a cache memory responsive to changing the operating point. The method further includes processing one or more instructions in the processor subsequent to removing power from the one or more ways of the cache memory, wherein said processing includes accessing one or more ways of the cache memory from which power was not removed.

Abstract: A system includes a context file to store multiple contexts corresponding to different power modes of an electronic system, and a domain control device to generate control signals based, at least in part, on a context from the context file. The electronic system is configured to transition to a power mode corresponding to the context responsive to the control signals.

Abstract: A display apparatus including: a collecting unit that collects power consumption information, wherein the power consumption information shows power consumption of a connecting device, and the connecting device interconnects a plurality of communication paths in a computer network; and a display unit that displays power consumption of the computer network, based on the power consumption information and constituent units based on a virtual network which is configured virtually on the computer network.

Abstract: A server cluster including a network switch and multiple server nodes is provided. The network switch is connected to an external network. Each server node performs an operation system and respectively includes a network port, a network chip and a south bridge chip. The network port is connected to the network switch via a cable. The network chip outputs a power-off signal according to a received power-off packet after the network switch is started. The south bridge chip outputs a shutdown signal to shut down the server node according to the power-off signal when the server node is turned on and the operation system is working normally.

Abstract: A method of dynamic energy management that includes loading an energy budget configuration stream for an instruction of a thread, loading characterization data for the thread, computing energy management settings for the instruction based on the characterization data and the budget configuration stream, and driving control signals indicative of the computed energy management settings.

Abstract: A switching device is comprising connectors and switching part, which is connected via the connectors to a working power supply unit, a redundant power supply unit, a battery unit and a power supply output terminal, and, in an initial state, connects the power supply output terminal and the working power supply unit, and connects the battery unit and the redundant power supply unit is connected, and in a spare state, cuts a connection between the battery unit and the redundant power supply unit, and connects the power supply output terminal and the redundant power supply unit.

Abstract: Handshaking circuits are provided in a communications cable and in a device operable to be mated with the communications cable. Before a device can utilize the power supply signal of such a communications channel, the two handshaking circuits must sufficiently identify one another over a power supply signal with a decreased voltage. The decreased voltage allows for a cable plug to be provided with a safe, protected power that cannot cause harm to a human. The decreased voltage also reduces the chance that a device can receive a primary power supply signal from the cable before the device sufficiently identifies itself. Accordingly, a laptop may be connected to a portable music player, but the voltage of the power supply signal provided by the laptop to the cable may be decreased on-cable until the handshaking circuit of the portable music player sufficiently performs a handshaking operation with a on-cable handshaking circuit.

Abstract: A transcoding service is described that is capable of transcoding or otherwise processing content, such as video, audio or multimedia content, by utilizing one or more pipelines. A pipeline can enable a user to submit transcoding jobs (or other processing jobs) into an available pipeline, where a transcoding service (or other such service) assigns one or more computing resources to process the jobs received to each pipeline. The transcoding service and the pipelines can be provided by at least one service provider (e.g., a cloud computing provider) or other such entity to a plurality of customers. A service provider can also provide the computing resources (e.g., servers, virtual machines, etc.) used to process the transcoding jobs from the pipelines.

Abstract: For controlling power sequence in a blade center environment, a relationship component module creates a topology of interdependent relationships of devices in the blade center environment. The devices include server blades, storage blades, and switch modules. A sequence module defines a sequence of the devices in the blade center environment to power off and on based on the topology of interdependent relationships. The sequence includes an order of a first independent blade server, each dependent storage blade of the first independent blade server, and a second independent blade server. A monitor component module monitors a command from an Advanced Management Module (AMM) to regulate power for the devices in the blade center environment. The AMM regulates power within the blade center. A validation module validates that the command does not violate the interdependent relationships and the sequence of devices or else blocks the command if the command is not validated.

Abstract: A computing device configured for enforcing a computing device power policy is described. The computing device includes a processor and executable instructions stored in memory that is in electronic communication with the processor. The computing device generates a power policy. The computing device also sends the power policy. The computing device further receives a suspicious process alert. Additionally, the computing device determines whether to terminate a suspicious process. The computing device also sends a process termination command if it is determined to terminate the suspicious process.

Abstract: A server cluster including a network switch and multiple server nodes is provided. The network switch is connected to an external network. Each server node includes a network port, a network chip and a control unit. The network port is connected to the network switch via a cable. The network chip detects the cable to obtain a connection state with the external network at the server node after the network switch is started, and accordingly outputs a connection state signal. The control unit turns on or shuts down the server node according to the connection state signal and an on/off state of the server node.

Abstract: A host chipset heartbeat may be utilized, in some embodiments, to handle interrupts from external devices on a power efficient basis. The availability of the host chipset heartbeat may be signaled to external devices and those external devices may time their activities to a period of time when not only are resources available, but the assertion of the activity is advantageous because the host chipset is already transitioning from a lower power consumption state.

Abstract: A motherboard includes a motherboard power supply connector and a time delay circuit. The motherboard power supply connector connects a power supply unit. The motherboard power supply connector has a power supply on pin and a power good pin. The power good pin is configured for receiving a power good signal from the power supply unit. The time delay circuit has an input terminal and an output terminal. The input terminal is configured for receiving a power supply on signal. The output terminal is connected to the power supply on pin and is configured for sending the power supply on signal to the power supply on pin after a time delay determined by the time delay circuit.

Abstract: A method of operation of a data storage system includes: providing a standby power source; detecting activity on a communication channel with an upstream re-driver powered with the standby power source; generating a signal-detect output from the upstream re-driver based on the activity; determining a link status with a power control unit based on the signal-detect output, the power control unit powered with the standby power source; and generating a power output from a power supply unit based on the link status, the power supply unit controlled by the power control unit.

Abstract: Embodiments of the present invention provide a method, system and computer program product for power management for a multi-display computing environment. In an embodiment of the invention, a computer data processing system can be configured for power management for a multi-display computing environment. The system can include a computer with at least one processor and memory, a video display adapter disposed in the computer and multiple different displays driven by the adapter. The system also can include a selective power management module coupled to the computer and configured to selectively apply power management to only one of the displays in which a period of inactivity is detected, while not applying power management to remaining ones of the displays.

Abstract: A method and system for reducing power consumption in a programmable logic device (PLD) is provided. The power consumption may be reduced by preferably continually considering power consumption as a factor in circuit design during the synthesis, placement, routing, and period following routing of the programmable logic device.

Abstract: A connector can be activated or deactivated by providing power and data signals to the connector at different times. In some embodiments, the power signals are provided to a connector, and then the data signals are provided to the connector after a delay. Providing power and data signals at different times can, in at least some cases, better mimic the timing of signals provided by a connector as the connector is attached to an electronic device. This can aid automated testing of the electronic device. It can also be used to control access of the device through the connector.

Abstract: To conserve power in a controlling device having a processing device in communication with an input element and a transmitting device the processing device is caused to be placed into a low-power state for at least a portion of a transmission inactive interval intermediate the transmission of at least a pair of command frames. The command frames are caused to be transmitted by the transmitting device in response to an activation of the input element sensed via the processing device to thereby command a functional operation of an intended target device.

Abstract: Embodiments of the present invention provide a method for managing a switch chip port. The method is applied in a distributed communications system and includes: detecting whether each of multiple service boards is in position; when it is detected that a service board is not in position, controlling disabling of a port corresponding to the detected not-in-position service board on a first switch chip of the main control board; and/or sending an in-position message including information about the not-in-position service board to the switch board, so that the switch board controls, according to the information about the not-in-position service board, disabling of a port corresponding to the not-in-position service board on a second switch chip of the switch board. Energy saving of a switch chip port can be efficiently implemented by adopting the technical solutions in the embodiments of the present invention, thereby efficiently reducing power consumption of the system.

Abstract: An image processing apparatus, which is capable of preventing increase in power consumption and operating normally in a first electric power mode even when returning to the first electric power mode from a second electric power mode by an unknown return factor. A storage unit stores a destination setting of the image processing apparatus. A shift unit shifts the apparatus from the second electric power mode to the first electric power mode, when a shift factor is detected in the second electric power mode. A set unit sets a re-shift time for re-shifting the apparatus from the first electric power mode to the second electric power mode, according to the destination setting. A re-shift unit re-shifts the apparatus from the first electric power mode to the second electric power mode, when a predetermined event does not occur in the re-shift time in the first electric power mode.

Abstract: One embodiment provides an information processing apparatus, including: a main controller; a sub controller configured to supply power to the main controller; a first operation input module configured to issue an operation signal to cause the sub controller to start power supply to the main controller, in a power-off state; and a second operation input module configured to accept an operation input, wherein the sub controller is switchable into a forcibly locked state where the power supply to the main controller is not started in response to the operation signal, the sub controller being switchable into the forcibly locked state, according to the operation input from the second operation input module.

Abstract: A network power management apparatus and method. The network power management apparatus includes a protocol management unit configured to be connected to a local communication apparatus and establish and manage a path between the local communication apparatus and neighboring communication apparatuses in the same network.

Abstract: A device configured in a unitary displayless housing, including a computing device that stores, manipulates and communicates energy data, and the displayless external surface of the unitary housing, including status indicator lights to show the status of the device.

Abstract: A time sequencing circuit for a power supply unit to ensure the correct sequencing of system voltages for a computer from a power supply unit includes first to fifth resistors, an electronic switch, first to third comparators, and a capacitor. Each of the first to third comparators includes an inverting input terminal, a non-inverting input terminal, and an output terminal When the power supply unit outputs all required voltages, the power supply unit outputs a high-voltage level indicating power good and the computer can start up power good signal. If one of the voltages is not outputted, the power supply unit outputs a low-voltage level good signal until any non-output of voltage is cured.

Abstract: A system and method for medium access control in a wireless communication network including the use of packets having a header and plural data portions, acknowledgement request features, corrupt packet identification, and adaptive duty cycling.

Abstract: An operation method for a computer system includes: a capacitance button controller detecting whether a capacitance button group is touched; if a capacitance power button of the capacitance button group is touched, a system platform receiving a power button signal in a first logic state and changing an operation state of the system platform; if the capacitance power button is touched for longer than a predetermined time, shutting down the system platform; if the capacitance power button is touched for not longer than the predetermined time, the system platform receiving the power button signal in a second logic state and determining a subsequent operation status of the system platform and the capacitance button controller based on a system status signal; and if the capacitance button group is touched but the capacitance power button is not touched, the capacitance button controller entering into a power-saving state.

Abstract: An image forming apparatus has a network interface unit for communication with an electronic mail server via a communication network, a main control unit that entirely controls the image forming apparatus and does not operate in a power-saving mode, and a sub control unit that inquires of the electronic mail server in the power-saving mode about whether an electronic mail addressed to the image forming apparatus is stored in the electronic mail server. When such an electronic mail is stored in the electronic mail server, the sub control unit activates the main control unit. The main control unit shifts the image forming apparatus from the power-saving mode to a normal mode, and acquires the electronic mail from the electronic mail server. An image forming unit forms an image on a recording medium based on an attachment file attached to the electronic mail acquired by the main control unit.

Abstract: A method of utilizing an information handling system includes detecting an event by a state controller configured to enable a plurality of operating states for a host system including a host system power on state and a host system power off state, and a plurality of processing module operating states including a processing module power on state and a processing module reduced operating state, and enabling an operating state associated with the event, including enabling the processing module power on state where the processing module controls a shared resource and a processing module non-shared resource in response to detecting a processing module power on event, and enabling the processing module reduced operating state where the processing module controls the shared resource in response to detecting a processing module reduced operating event.

Abstract: A power management circuit for managing power supplied to an electronic circuit by a core power supply. The electronic circuit includes digital and analog circuit domains and operates in POWER-ON, RUN and STANDBY modes. The power management circuit includes a master state machine that exchanges a handshake signal with the analog circuit domain to monitor the modes of operation and generates first and second configuration signals. The power management circuit enables and disables the analog circuit domain based on the first and second configuration signals. A switch connected to the core power supply and the digital circuit module enables and disables the digital circuit domain based on the second configuration signal.

Abstract: An integrated circuit, in accordance with embodiments of the present technology, includes a plurality of engines, a plurality of engine level power gating (ELPG) controllers, and a power gating arbiter for implementing engine level power gating arbitration techniques. The power gating arbiter may receive requests from one or more ELPG controllers to turn on their respective engines or portions therein. The power gating arbiter prioritizes the request and sends an acknowledgment to a given ELPG controller to turn on or off its corresponding engine according to the prioritized predetermined order. After receiving the acknowledgement, the given ELPG controller turns on or off its corresponding engine and returns an indication to the power gating arbiter that the corresponding engine is turned on or off. The process may be iteratively repeated for each received request after receiving the indication from the previously serviced ELPG controller that its corresponding engine is turned on or off.

Abstract: A delay circuit for power sequencing in a computer includes an oscillator; an input pin; a counter; a register; and a comparing controller. The counter detects a voltage of the input pin when each clock signal arrives, resets a number counted by the counter when the voltage of the input pin is detected at logic-low electrical level, and adds a predetermined number when the voltage of the input pin is detected at logic-high electrical level. The controller compares the total number counted by the counter with a preset number, and outputs a control signal when the numbers match. The control signal controls a connected logic circuit to work according to a power sequence.

Abstract: A system and method is provided to measure the power consumption of circuits whereby, in one aspect, a processor's temperature is maintained so that its power consumption is measured at the point the processor throttles.

Abstract: A method of powering on a plurality of devices includes identifying a plurality of power distribution units (PDUs) disposed in a rack, wherein each PDU receives power from a main power source and includes a circuit breaker. A plurality of devices disposed in the rack are identified, wherein each device receives power from one of the PDUs, and wherein the plurality of devices are server nodes, network switches or external data storage devices. Vital product data (VPD) is obtained from a service processor in each device, wherein the VPD identifies the device by a model identification code. For each PDU, the plurality of devices connected to the PDU are powered on in a sequence to prevent an inrush current from tripping the circuit breaker within the PDU, wherein the sequence powers on devices in order of ascending commonality of the model identification code.

Abstract: A method of powering on a plurality of devices includes identifying a plurality of power distribution units disposed in a rack, wherein each power distribution units is connected to receive power from a main power source, and wherein each power distribution unit includes a circuit breaker. The method further includes identifying a plurality of devices disposed in the rack, wherein each device is connected to receive power from one of the power distribution units, and wherein the plurality of devices are selected from server nodes, network switches and external data storage devices. For each of the power distribution units, the plurality of devices that are connected to the power distribution unit are powered on in a sequence to prevent an inrush current from tripping the circuit breaker within the power distribution unit. The sequence powers on the devices identified as network switches and external data storage devices prior to powering on the devices identified as server nodes.

Abstract: A computer program product includes computer usable program code embodied on a tangible computer usable storage medium for: identifying a plurality of power distribution units (PDUs) disposed in a rack, wherein each PDU receives power from a main power source, and wherein each PDU includes a circuit breaker; identifying a plurality of devices disposed in the rack, wherein each device receives power from one of the PDUs, and wherein the plurality of devices are selected from server nodes, network switches and external data storage devices; and powering on, for each of the PDU, the plurality of devices that are connected to the PDU in a sequence to prevent an inrush current from tripping the circuit breaker within the PDU, wherein the sequence powers on the devices identified as network switches and external data storage devices prior to powering on the devices identified as server nodes.

Abstract: In the field of electronic technologies, a power supply selector and a power supply selection method are provided. The power supply selector includes: a first selection module, configured to select a power supply from multiple candidate power supplies; a control module, coupled to the first selection module, and configured to use the power supply selected by the first selection module as a power supply, and compare voltages of the multiple candidate power supplies to generate a control signal of each candidate power supply; and a second selection module, coupled to the control module, and configured to select a power supply for output in the multiple candidate power supplies under the control of the control signal of each candidate power supply. The technical solution is used to select a power supply from multiple candidate power supplies.

Abstract: Embodiments apply user-specific usage patterns to estimate and preserve remaining battery life on a computing device. An amount of battery drain and an execution context are determined and stored for a plurality of recurring time periods. The execution context identifies operations executed by the computing device, signal strength, and other data describing the associated time period. If one of the operations is expected to be executed during a recurrence of at least one of the time periods, the expected execution is adjusted based on execution context and an estimated remaining battery life for the computing device. For example, the computing device may postpone or reschedule the operation for a time period during which the operation is expected to have a greater likelihood of completing successfully. In some embodiments, the battery preservation operations are automatically enabled at a particular threshold.

Abstract: A power management method for use by a blade server or other networked computer having a CPU, memory, network interface, and timer. The method includes monitoring processes in the computer, determining that the computer has become idle, and switching the CPU and memory from an active state to a low power state while maintaining the network interface and timer in an active state. Power management for multicore processors is also provided. A power supply system can be used for providing shared power to groups of the networked computers that each have a similar active power demand. Each PSU in the power supply system is capable of supplying the active power demand at an efficiency greater than a preselected desired minimum efficiency. Changes in power requirements resulting from a computer switching between low power and active states can be accommodated by switching a single PSU into or out of the system.

Abstract: A server in a data center is supplied with power by a power distribution unit (“PDU”) having outlet-level power monitoring and switching capability. A predetermined server-specific time after a shutdown command has been issued to the server, the level of power consumption of the server is compared with a predetermined server-specific level of power consumption. If the level of power consumption of the server at that time is less than the server-specific level of power consumption, the server is considered to have been gracefully shut down and power to the server is switched off by delivering an appropriate command to the PDU. If the level of power consumption of the server at that time is not less than the server-specific level of consumption, this indicates a malfunction and power to the server is maintained so the cause can be determined and remedied without unnecessarily corrupting data or damaging the server.

Abstract: A rush-in current controller includes a clock module connected to provide a delayed sleep control signal based on counting a preset number of clock cycles corresponding to an input sleep control signal. Additionally, the rush-in current controller includes a ring oscillator module connected to maintain the delayed sleep control signal based on counting a preset number of ring oscillator cycles corresponding to a virtual power supply line voltage. A method of controlling a rush-in current includes providing a delayed sleep control signal based on counting a preset number of clock cycles corresponding to an input sleep control signal and maintaining the delayed sleep control signal based on counting a preset number of ring oscillator cycles corresponding to a virtual power supply line voltage.

Abstract: In a system and method for testing a wake-up on LAN (WOL) function of a computer, the computer connects to a server through a local area network (LAN). The system constructs a network connection between the server and the computer according to an Internet protocol (IP) address, a media access control (MAC) address and a name of the computer, and enables the computer in a wake-up mode when the server connects to the computer through the LAN. A wake-up command is generated for waking up a WOL function of the computer, the computer performs a WOL function test process according to the wake-up command. The sever detects a current status of the computer from a data packet when the data packet is received from the computer, and records the current status as a test result of the WOL function of the computer.

Abstract: A method and apparatus are provided for reducing the energy consumption of an electronic terminal. The method implements a step of modifying the timeout-before-standby duration for said terminal after an action performed by and/or on said terminal at a current instant, depending on the membership of the current instant in a given temporal category, from among at least two predefined temporal categories.

Abstract: A system and method for adjusting an energy efficient Ethernet (EEE) control policy using measured power savings. An EEE-enabled device can be designed to report EEE event data. This reported EEE event data can be used to quantify the actual EEE benefits of the EEE-enabled device, debug the EEE-enabled device, and adjust the EEE control policy.

Abstract: An information processing apparatus executes a processing sequence including a plurality of processing steps. A management apparatus makes the information processing apparatus execute the processing steps in predetermined order, and thereby manages execution of the processing sequence. The management apparatus takes over execution management of the processing sequence from a first management apparatus. At this time, an information acquisition unit of the management apparatus acquires state information indicating a progress state of the processing sequence from the information processing apparatus. A control unit of the management apparatus makes the information processing apparatus continue execution of an unexecuted processing step of the processing sequence based on the state information acquired by the information acquisition unit.

Abstract: The integrated circuit device includes: an electrostatic protection circuit that is provided between first and second power supply lines coupled to external terminals respectively, and forms a current pathway between the first and second power supply lines during a given period in response to an increase in a voltage between the first and second power supply lines; and a power supply generating circuit that performs power supply control based on a voltage of the first power supply line and generates a control signal in accordance with a switching timing of the power supply control. And, the electrostatic protection circuit includes an adjustment circuit for shortening the given period in response to the control signal.

Abstract: The need for an uninterrupted power supply (UPS) in a data center is obviated by tying a DC voltage from a backup power source directly to the motherboards of multiple servers in the data center. AC power received from a power utility service is converted into a lower voltage by a site transformer and then provided to one or more power distribution units at a site. The power distribution units supply power to a plurality of servers, which include power supplies that convert the AC electrical power to DC electrical power for use by the servers' motherboards. In the event of a failure of power from the utility service, the backup power source provides DC electrical power to the motherboards, e.g., for sufficient time to start up a generator to provide power in place of the utility service.