Abstract: An image forming apparatus includes a printing unit, a disconnect request receiving unit that receives, from a management apparatus which manages power, a disconnect request to disconnect a supply of power, a notification receiving unit that receives a notification of an occurrence of a predetermined event, and a controller that performs a control operation so as to disconnect the supply of power after the printing unit prints predetermined data if the disconnect request receiving unit has received the disconnect request to disconnect the supply of power and the notification receiving unit has received the notification of the occurrence of the predetermined event.

Abstract: Systems and methods provide control of operating states of an electronic device. A first exemplary electronic device detects a consumer electronic control (CEC) communication sent from a second electronic device to a third electronic device, the CEC communication communicated over high-definition multimedia (HDMI) connectors communicatively coupling the first electronic device, the second electronic device and the third electronic device; determines, based on information in the CEC communication, whether the CEC communication is one of a first kind of CEC communication or a second kind of CEC communication; in response to determining that the CEC communication is one of the first kind of CEC communication, transitions the first electronic device to a predefined operating state; and in response to determining that the CEC communication is one of the second kind of CEC communication, maintains the first electronic device in a current operating state.

Abstract: Network presence of a computing device in a cloud computing network is maintained while power consumption of the computing device is reduced. When the computing device is determined to enter an idle state, at least some of the operations of the computing device running in a virtual machine environment are migrated to a server within the cloud computing network while maintaining connectivity of the computing device to the cloud computing network. When the computing device is determined to be in the idle state, the computing device is put into a sleep mode to reduce power consumption of the computing device. When the computing device is determined to be in an active state, the computing device is woken, and the migrated operations are returned from the server to the computing device. This reduces power consumption of the computing device while maintaining the network presence of the computing device in the cloud computing network.

Abstract: A portable computer and an operating method thereof are provided. The portable computer comprises an input device, a power button, a non-volatile memory, a central processing unit (CPU), an embedded controller (EC), and a chipset. The input device inputs a user password, and the non-volatile memory stores a default password. The EC, in a soft off status, determines whether the power button protection item is enabled. The EC locks the power button if the power button protection item is enabled. The EC determines whether the user password is the same as the default password. The EC unlocks the power button if the user password is the same as the default password. The chipset is coupled to the non-volatile memory, the CPU and the EC.

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: Provided is an electronic apparatus including: a network interface configured to receive data via a network; a communication processing unit configured to notify of a network communication type and a network communication amount of the received data; and an operation mode control unit configured to switch an operation mode from a normal mode to an energy-saving mode when a network communication does not occur in the network interface before a waiting time based on the network communication amount for each network communication type notified of from the communication processing unit has elapsed.

Abstract: A voltage margin controller, an IC included the same and a method of controlling voltage margin for a voltage domain of an IC are disclosed herein. In one embodiment, the voltage margin controller includes: (1) monitoring branches including circuit function indicators configured to indicate whether circuitry in the voltage domain could operate at corresponding candidate reduced voltage levels and (2) a voltage margin adjuster coupled to the monitoring branches and configured to develop a voltage margin adjustment for a voltage regulator of the voltage domain based upon an operating number of the circuit function indicators.

Abstract: In remote power down control of a device configured for externally initiated remote power down, such as over a network, activity of all externally connected sources of valid power down requests for the device is monitored; and the device is powered down in response to a combination of one of a received power down request and an inactivity time out with respect to each of the sources of valid power down requests for the device.

Abstract: A method for communication is disclosed and includes, in a single chip including a plurality of on-chip devices, acquiring, from at least one of the plurality of on-chip devices, power information for the at least one of the plurality of on-chip devices. The acquiring may be in response to a query signal received by the at least one of the plurality of on-chip devices. An output signal indicative of power status of the at least one of the plurality of on-chip devices may be generated from within the chip, based on the acquired power information. The acquired power information may be communicated to the off-chip device. The acquired power information may be wirelessly communicated to the off-chip device via an antenna or an infrared transmitter on the single chip. The acquired power information may be communicated to an off-chip device via a wired connection on the single chip.

Abstract: Embodiments of the invention relate to a method and apparatus for a zero voltage processor sleep state. A processor may include a dedicated cache memory. A voltage regulator may be coupled to the processor to provide an operating voltage to the processor. During a transition to a zero voltage power management state for the processor, the operational voltage applied to the processor by the voltage regulator may be reduced to approximately zero and the state variables associated with the processor may be saved to the dedicated cache memory.

Abstract: In a wired data telecommunication network power sourcing equipment (PSE) coupled to a powered device (PD) carries out an inline power discovery process to verify that the PD is adapted to receive inline power, then a plurality of classification cycles are carried out to convey a series of inline power classes back to the PSE. The series of inline power classes may all be the same, in which case the PD is legacy equipment and is adapted to receive the power level corresponding to that class. If they are not all the same, information is thus conveyed to the PSE which may, for example, correspond to a specific power level to be applied or to other information.

Abstract: A second control unit in an image processing apparatus receives a packet transmitted from an external apparatus, copies and stores the received packet, analyzes the header of the received packet, deletes the analyzed header, and, when transitioning the image processing apparatus from a second power mode to a first power mode based on the result of analysis in the case where the image processing apparatus is in the second power mode, transitions the image processing apparatus from the second power mode to the first power mode, and transfers to the first control unit the received packet that was stored and does not transfer to the first control unit the received packet from which the header was deleted.

Abstract: Adaptive voltage scalers (AVSs), systems, and related methods are disclosed. The AVSs are configured to adaptively adjust voltage levels powering a functional circuit(s) based on target operating frequencies and delay variation conditions to avoid or reduce voltage margin. In one embodiment, the AVS includes an AVS database. The AVS database can be configured to store voltage levels for various operating frequencies of a functional circuit(s) to avoid or reduce voltage margin. The AVS database allows rapid voltage level decisions. The voltage levels stored in the AVS database may be initial, minimum, learned, populated, explored, backed out, temperature-based, and/or age-based voltage levels according to disclosed embodiments to further avoid or reduce voltage margin. An AVS module may be a software-based module that consults the AVS database to make voltage level decisions. Providing the AVS module as a software-based module may allow flexibility in configuring the AVS module and/or the AVS database.

Abstract: A method for controlling electric power supply of a motor vehicle including a power unit and an electric power supply battery, the vehicle including at least one autonomous computer, at least one master computer, and at least one slave computer, the computers connected by a data network, the autonomous computers each configured to carry out at least one task after the power unit has stopped, and the power supply to the computers being maintained for a first period of time. The control method includes: reporting absence of the autonomous computer to the master computer; interrupting the power supply of each slave computer; interrupting the power supply of the master computer; maintaining the power supply of the autonomous computer beyond the first period of time; interrupting the power supply of each autonomous computer once it has finished its task.

Abstract: The present invention relates to communication within a vehicle, and particularly relates to an in-vehicle Ethernet, and the vehicle comprising thereof. A physical layer device (PHY) according to one embodiment of the present invention may include a first pin receiving a power-on signal from exterior; a second pin which can be set as a first mode or a second mode; a decision unit which determines the mode in the second pin when the power-on signal is received at the first pin; and an operating preparation unit which initiates a communication by applying a predetermined value based on the mode in the second pin which is determined by the decision unit.

Abstract: Various exemplary embodiments relate to a method and related network node including one or more of the following: receiving, at a wake-up server, an indication that an agent device will be suspended, including at least one criterion for reestablishing the agent device; determining that the at least one criterion has been met; and, in response, reestablishing the agent device. Various exemplary embodiments relate to a method and related network node including one or more of the following: transmitting, by an agent device to a support server, a request message; transmitting, to a wake-up server, an indication that resources associated with the agent device will be released, including at least one criterion for reestablishing the agent device; transmitting, to the support server, an instruction to transmit a result message associated with the request message to the wake-up device; and releasing the system resources associated with the agent device.

Abstract: A multicarrier transceiver is provided with a sleep mode in which it idles with reduced power consumption when it is not needed to transmit or receive data. The full transmission and reception capabilities of the transceiver are quickly restored when needed, without requiring the full (and time-consuming) initialization commonly needed to restore such transceivers to operation after inactivity.

Abstract: A network may assign or reassign data paths to allow the network to shut down servers or switches and meet network demand at a lower energy cost. By assigning or reassigning data paths, network demand is met using only a subset of the network elements, allowing a subset of servers and switches to be temporarily shut down, thereby saving power while maintaining the ability to meet network demand.

Abstract: Aggregating job exit statuses of a plurality of compute nodes executing a parallel application, including: identifying a subset of compute nodes in the parallel computer to execute the parallel application; selecting one compute node in the subset of compute nodes in the parallel computer as a job leader compute node; initiating execution of the parallel application on the subset of compute nodes; receiving an exit status from each compute node in the subset of compute nodes, where the exit status for each compute node includes information describing execution of some portion of the parallel application by the compute node; aggregating each exit status from each compute node in the subset of compute nodes; and sending an aggregated exit status for the subset of compute nodes in the parallel computer.

Abstract: An information processing system includes: a plurality of information processing devices; a plurality of power storage devices configured to supply DC power to any of the plurality of information processing devices; a plurality power source devices configured to supply DC power to the plurality of power storage devices; and an arithmetic unit configured to, in accordance with the charged state of any of the plurality of power storage devices and a task to be processed by the information processing device to which DC power is supplied from the power storage device, allocating the task to be processed by the information processing device to an information processing device to which DC power is not supplied from the power storage device.

Abstract: Various embodiments of a power saving scheme in data communication are provided. In one aspect, a method transmits a plurality of symbols each of which containing an overhead portion and at least a portion of a respective data transmission unit (DTU). In particular, the method transmits the overhead portion of a first symbol of the plurality of symbols and the at least a portion of a respective DTU of the first symbol when the at least a portion of the respective DTU of the first symbol contains payload data. The method transmits the overhead portion of a second symbol of the plurality of symbols without transmitting the at least a portion of a respective DTU of the second symbol when the at least a portion of the respective DTU of the second symbol contains no payload data.

Abstract: An exemplary flat panel display includes a micro processing unit, a display signal input socket defining a safeguarding terminal, an input interface configured for a user to input a user code, a first storage unit storing a security code, and a second storage unit storing a safeguarding mark. The micro processing unit is configured to monitor a voltage applied to the safeguarding terminal, detect a status of the safeguarding mark, compare the user code with the security code according to the status of the safeguarding mark, and output a control signal according to a result of the comparison.

Abstract: An image forming apparatus to effectively reduce power consumption of an image forming apparatus in a sleep mode by reducing current consumed in an operating panel microcomputer by operating parts by constituting the parts so that a power voltage is continually supplied to the parts to indicate that the image forming apparatus is in a power-on state while stopping the operation of the operating panel microcomputer of an operating panel part in a sleep mode.

Abstract: Circuitry in an adapter, such as a power supply, can provide power at a desired voltage level to a portable device. The circuitry may assert one of several electrical configurations on the cabling that electrically connects the portable device to the external device to indicate to the external device a desired voltage level.

Abstract: A power supply management system includes a power supply backplane, a plurality of power supply units connected to the power supply backplane, and a power controller chip. The power controller chip sends a plurality of power controlling signals to the power supply backplane. The power supply backplane transmits the plurality of power controlling signals to the plurality of power supply units, transition the plurality of power supply units into specific working states according to the plurality of power controlling signals, collect present working states of the plurality of power supply units, and sends the present working states of the plurality of power supply units to the power controller chip. A method for managing power supply units is also provided.

Abstract: An SOC implements a security enclave processor (SEP). The SEP may include a processor and one or more security peripherals. The SEP may be isolated from the rest of the SOC (e.g. one or more central processing units (CPUs) in the SOC, or application processors (APs) in the SOC). Access to the SEP may be strictly controlled by hardware. For example, a mechanism in which the CPUs/APs can only access a mailbox location in the SEP is described. The CPU/AP may write a message to the mailbox, which the SEP may read and respond to. The SEP may include one or more of the following in some embodiments: secure key management using wrapping keys, SEP control of boot and/or power management, and separate trust zones in memory.

Abstract: A system and method for low-cost, fault tolerant, EMI robust data communications, particularly for an EV environment. A data communications method, including a) enabling a transmission of a wake signal from a host to a remote client through an isolator disposed at the remote client when the wake signal is asserted from the host at a host-portion of the isolator concurrent with a periodic enablement of a client-portion of the isolator by the remote client; and thereafter b) transmitting the wake signal from the host to the remote client through the isolator; c) controlling enablement of the client-portion responsive to the wake signal transmitted through the isolator; and thereafter d) disabling the transmission by deassertion of the wake signal at the host.

Abstract: A power-saving network management server, which is coupled to a network system including a network device and manages a state of power to the network device, wherein the power-saving network management server is configured to: store network configuration information and task allocation information; determine starting or stopping of the power supply to the port of the network device based on the updated network configuration information and task allocation information; store a determination result of the starting or stopping of the power supply to the port as a port determination result; and control the power supply to the port of the network device based on the port determination result.

Abstract: In an example embodiment, there is described herein an apparatus comprising an interface for communicating with a plurality of digital signal processors and logic operable to send and receive data via the interface. The logic is configured to determine a first set of digital signal processors to be maintained in a ready state, a second set of digital signal processors to be maintained in a first energy saving state, and a third set of digital signal processors to be maintained in a second energy saving state.

Abstract: An energy management system has an application storage, an application executing unit, a plurality of network interfaces, a policy setting unit configured to set whether each application should be permitted to access each of the network interfaces, a policy storage configured to store identification information for each application set by the policy setting unit, and access permit/inhibit information showing whether the application is permitted to access each of the network interfaces, an I/F management unit managing a correspondence relationship between a network address and each of the network interfaces, and to specify a network interface used by the application executed by the application executing unit, and an access controller configured to judge whether the application executed by the application executing unit is permitted to access the network interface to be used thereby, based on the access permit/inhibit information stored in the policy storage.

Abstract: Independent power control of two or more processing cores. More particularly, at least one embodiment of the invention pertains to a technique to place at least one processing core in a power state without coordinating with the power state of one or more other processing cores.

Abstract: A transmitting device that transmits data signals into a primary electricity grid, wherein the transmitting device connects to a power input of a computer system and overlays signals returned by the computer system into the primary electricity grid by modulating random data signals onto a line connected to the power input of the computer system.

Abstract: In one embodiment, the present invention includes a processor having a plurality of cores and a control logic to control provision of a voltage/frequency to a first core of the plurality of cores independently of provision of a voltage/frequency to at least a second core of the plurality of cores. In some embodiments, the voltages may be provided from one or more internal voltage regulators of the processor. Other embodiments are described and claimed.

Abstract: An information processing device (1) includes a main CPU (2) and a sub CPU (3). The main CPU (2) is provided with a function of managing schedules of task processing and idle processing and executes sleep control which reduces power consumption of the main CPU (2) as the idle processing when the task processing is not executed. The sub CPU (3) measures elapsed time during which the sleep control is executed, detects an interrupt event occurring during the sleep control, and notifies the elapsed time until the interrupt event occurs to the main CPU (2). The main CPU (2) terminates the sleep control in accordance with the notification of the elapsed time and reflects the elapsed time in the schedule. As a result, inconsistency of a timer caused by the sleep control can be solved, and the information processing device which can use a scheduler correctly even if the sleep control is executed is provided.

Abstract: An information processing apparatus has a sub system that, while a main system is in power saving state, analyzes a protocol of a network communication and recovers the main system to an ordinary power mode from the power saving state, in accordance with the protocol. There is a setting unit that sets a re-transition condition which is a condition to make the main system switch to the power saving state again, depending on a kind of the network communication. Further, there is a control unit that monitors whether the re-transition condition is satisfied and switches the main system to the power saving state in response to the re-transition condition being satisfied.

Abstract: A display provides power to an information handling system through a display cable. The display cable includes a power wire and an auxiliary channel. The display and information handling system communicate through the auxiliary channel to coordinate power transfer from the display to the information handling system, such as in the form of a trickle charge to a battery integrated in the information handling system.

Abstract: To reduce power consumption, a data transmission apparatus comprises: a memory; a timing instruction unit which indicates a start timing of outputting data from the memory; a first interface which outputs data stored in the memory according to the timing instruction unit; a second interface which transfers the data from the first interface to a buffer; and a control unit which issues a command to perform transition of the first interface and the second interface to a power saving state based on the data output start timing indicated by the timing instruction unit, and a sum of a time required to perform transition of the first interface and the second interface to the power saving state and a time required to return from the power saving state.

Abstract: Disclosed herein is a mobile communicator that includes a speed detection system for determining whether the mobile communicator is moving faster than a threshold speed. The mobile communicator further includes a user attentiveness detector configured to determine whether a user is inattentive and a sensor element configured to determine orientation of the mobile communicator. The mobile communicator further includes a circuit configured to ensure that a functionality of the mobile communicator is in a turned off state when the speed detection system determines that the mobile communicator is moving faster than the threshold speed and at least one of: (a) the user attentiveness detector determines that the user is inattentive; and (b) the sensor element determines that the mobile communicator is in a substantially vertical position.

Abstract: Disclosed herein is a mobile communicator that includes a speed detection system for determining whether the mobile communicator is moving faster than a threshold speed. The mobile communicator further includes a user attentiveness detector configured to determine whether a user is inattentive and a sensor element configured to determine orientation of the mobile communicator. The mobile communicator further includes a circuit configured to ensure that a functionality of the mobile communicator is in a turned off state when the speed detection system determines that the mobile communicator is moving faster than the threshold speed and at least one of: (a) the user attentiveness detector determines that the user is inattentive; and (b) the sensor element determines that the mobile communicator is in a substantially vertical position.

Abstract: An example method is provided and includes communicating a first packet to a network element in order to indicate whether an endpoint can have its power managed by network communications. The first packet includes an Internet protocol (IP) address associated with the endpoint. The method also includes receiving a second packet from the network element to identify whether the endpoint can have its power managed. The endpoint is configured to have its power managed via a port associated with the endpoint. In more specific embodiments, a state associated with the endpoint is used to determine whether to power on, or to power off the endpoint. In other implementations, the endpoint is powered on, or powered off at a specific time based on a policy associated with the endpoint.

Abstract: A power context system is described herein that makes decisions related to device power usage based on factors such as location, load, available alternatives, cost of power, and cost of bandwidth. The system incorporates contextual knowledge about the situation in which a device is being used. Using the context of location, devices can make smarter decisions about deciding which processes to migrate to the cloud, load balancing between applications, and switching to power saving modes depending on how far the user is from a power source. As the cloud becomes more frequently used, load balancing by utilizing distributed data warehouses to move processes to different locations in the world depending on factors such as accessibility, locales, and cost of electricity are considerations for power management. Power management of mobile devices is becoming important as integration with the cloud yields expectations of devices being able to reliably access and persist data.

Abstract: According to one embodiment, an information processing apparatus includes a storage device, a setup module, an operation control module, and a setup value control module. The storage device stores power-saving setup information including at least one setup item relating to an operation of the apparatus. The setup module sets up a value of the at least one setup item in accordance with a user operation. The setup value control module acquires first setup information including a first setup value corresponding to the at least one setup item, and applies a setup value with a higher power-saving effect, which is selected between the first setup value and a current setup value of the at least one setup item, to the at least one setup item.

Abstract: One embodiment provides an information processing apparatus including a processor; memory blocks; an internal voltage generator connected to the memory blocks; an input/output circuit connected to the memory blocks; switches each installed corresponding to the internal voltage generator, the input/output circuit, and the memory blocks, and configured to switch ON/OFF of the connection with a power source; a data register configured to store a data set that controls the ON/OFF of the switches; and a data management circuit configured to set the data set in the data register, wherein when a clock signal input to the processor is turned to OFF, the data management circuit generates a first type of the data set, which switches ON the switch connected to the internal voltage generator and switches OFF the switches connected to the memory blocks, and sets the first type of the data set in the data register.

Abstract: A system for reducing energy consumption of a device and a method therefor. An apparatus for providing power to a controlled device includes a memory, a power controller, and a processor. The processor receives switching data from the memory. The switching data may include at least one on time and at least one off time. The processor generates a connect command or a disconnect command from the switching data and issues the command to the power controller. The power controller connects a power source interface to a power output interface. A power source is also connected to the power source interface. The power output interface is connected to a power input of the controlled device. The power controller connects the power output interface to the power source interface in response to a connect command and disconnects the power output interface from the power source interface in response to the disconnect command.

Abstract: Associating service agents in communication over a network to one or more respective clients coupled to the network at respective ports of the network is described. At a first service agent, a first signal is received from a first client coupled to the network at a first port. The first signal propagates over a first signal propagation path between the first service agent and the first port. An association between the first service agent and the first client is established based at least in part on a difference between: the first signal propagation path between the first service agent and the first port, and a second signal propagation path between the first service agent and a second port or between a second service agent and the first port.

Abstract: A system, method, and computer program product are provided for remote management of a computer system using graceful power control commands. A management controller is able to receive commands from a remote management console to perform a graceful power control command (e.g., power-down, hibernate). The management controller stores the graceful power control command in a shared memory and notified (e.g., via interrupt) a management agent that the graceful power control command is present. The management agent retrieves the graceful power control command and invokes an appropriate operating system command. The management agent can also provide result information to the management controller.

Abstract: A method and system for determining an energy-efficient operating point of the platform or system. The platform has logic to dynamically manage setting(s) of the processing cores and/or platform components in the platform to achieve maximum system energy efficiency. By using the characteristics of the workload and/or platform to determine the optimum settings of the platform, the logic of the platform facilitates performance guarantees of the platform while minimizing the energy consumption of the processor core and/or platform. The logic of the platform identifies opportunities to run the processing cores at higher performance levels which decreases the execution time of the workload and transitions the platform to a low-power system idle state after the completion of the execution of the workload. Since the execution time of the workload is reduced, the platform spends more time in the low-power system idle state and therefore the overall system energy consumption is reduced.

Abstract: Method of cooperative reduced power mode suspension for high input/output (‘I/O’) workloads, including: determining, by a transfer monitoring module, a size of a file to be transferred to a recipient, wherein the recipient includes a central processing unit (‘CPU’) operating in a reduced power mode; determining, by the transfer monitoring module, a desired transfer rate for transferring the file to the recipient; calculating, by the transfer monitoring module, an expected transfer completion time in dependence upon the size of the file and the desired transfer rate; and sending, by the transfer monitoring module, a message to the recipient requesting that the CPU suspend the reduced power mode in dependence upon the expected transfer completion time.

Abstract: A hub apparatus for USB and a power management method thereof are provided. The hub apparatus includes at least one USB-PD port, at least one USB port and a control unit. The control unit detects whether the USB-PD port is connected to a first external device and whether the USB port is contacted to a second external device respectively. When the at least one first external device complies with a USB-PD interface and a connecting situation of the at least one first external device and the at least one second external device are changed, the control unit determines a required power supply determination value according to the connecting situation of the at least one first external device and the at least one second external device, and accordingly, the control unit communicates with the first external device to set a power transmission profile of the at least one USB-PD port.

Abstract: Independent power control of two or more processing cores. More particularly, at least one embodiment of the invention pertains to a technique to place at least one processing core in a power state without coordinating with the power state of one or more other processing cores.