Abstract: A method and device for controlling a frequency of a processor of a computing device are disclosed. The method includes receiving requests to process tasks on a processor of the computing device, classifying each of the tasks as either a new workload group or an historic workload group, and monitoring a load placed on the processor due to each of the workload groups. And the frequency of the processor is controlled based upon a total workload on the processor and a contribution of each of the workload groups to the total workload.

Abstract: A power supply control apparatus includes a control circuit configured to obtain a value of power consumed by a specified device to which plural power supply devices supply power and further configured to determine based on the obtained power value and a predetermined value obtained from power conversion efficiency of each power supply device among the plural power supply devices, a scheme of supplying power to the specified device to be any one among a first scheme in which the plural power supply devices supply power and a second scheme in which among a first power supply device and a second power supply device included in the plural power supply devices, voltage of power supplied by the first power supply device is made lower than that of power supplied by the second power supply device, whereby the second power supply device supplies power.

Abstract: A data processing device includes: a first controller requiring a first activation time; a second controller requiring a second activation time, which is shorter than the first activation time; and a data processor for switching a mode, in which data is processed, between a first processing mode without collaboration with the first controller, and a second processing mode in collaboration with the first controller. The data processor processes data in the first processing mode after completing the activation of the second controller and before completing the activation of the first controller; processes data in the second processing mode after completing the activation of the first controller; and processes data in the first processing mode after a fault occurs in the first controller.

Abstract: An information processing apparatus includes transmitting-receiving units, response processing units, and a switching unit. The transmitting-receiving units transmit data to and receive data from networks. An operation state of each of the response processing units is able to be switched between a first state and a second state. The switching unit performs switching between the first state and the second state of each of the response processing units. The transmitting-receiving units and the response processing units are provided for plural respective networks. In a case where all the response processing units are in the second state, the switching unit switches, among all the response processing units, an operation state of a response processing unit that has received predetermined data from the second state to the first state.

Abstract: According to one embodiment, an electronic apparatus includes a connector, power circuit, and controller. The connector is connectable to a first or second external device. The connector includes a first contact configured to receive a first signal from the first external device or a second signal from the second external device. The second signal is different from the first signal and configured to control power inside the electronic apparatus. The power circuit is configured to generate power inside the electronic apparatus using voltage from the first external device or the second external device. The controller is configured to supply a control signal based on the second signal to the power circuit when the first contact receives the second signal.

Abstract: In an embodiment, an integrated circuit may include one or more processors. Each processor may include multiple processor cores, and each core has a different design/implementation and performance level. The processor may support multiple processor states (PStates). Each PState may specify an operating point (e.g. a combination of supply voltage magnitude and clock frequency), and each PState may be mapped to one of the processor cores. During operation, one of the cores is active: the core to which the current PState is mapped. If a new PState is selected and is mapped to a different core, the processor may automatically context switch the processor state to the newly-selected core and may begin execution on that core. The context switch may be performed using a special purpose register (SPR) interconnect. Each processor core in a given processor may be coupled to the SPR interconnect to permit access to the external SPRs.

Abstract: Techniques are generally described related to management of power consumption for a processor. One example method may include identifying a target operating constraint and a first operating parameter; determining a second operating parameter based on the target operating constraint and the first operating parameter; estimating an actual operating constraint; comparing the target operating constraint and the actual operating constraint; and setting up the first operating parameter and the second operating parameter of the processor based on a comparison of the target operating constraint and the actual operating constraint, wherein the target operating constraint is not a worst-case operating constraint. Other examples of methods, systems, and computer programs related to managing power consumption for a processor are also contemplated.

Abstract: The present disclosure describes apparatuses and techniques for patching boot code of read-only memory (ROM). In some aspects, execution of boot code from a ROM is initiated to start a boot process of a device. Execution of the boot code from the ROM is then interrupted to enable execution of other boot code, such as corrected boot code or additional boot code, from another memory. Once the other boot code is executed, execution of the boot code from the ROM is resumed to continue booting the computing device. By so doing, the corrected boot code or additional boot code can be executed during the boot process effective to patch the boot code stored in the ROM.

Abstract: Embodiments described herein include a Power over Ethernet (PoE) enabled device that uses 2-event classification when allocating power to coupled powered devices (PDs). If the 2-event classification is successful, power sourcing equipment (PSE) on the PoE device allocates a maximum power allotment to the PD. Once powered on, the PD may determine it does not require the maximum power allotment and negotiate a reduction in the power allotted to the PD.

Abstract: An information processing apparatus includes a determination unit, a first acceptance unit, a second acceptance unit, a measurement unit, a third acceptance unit, and a restriction unit. The determination unit determines whether information necessary for a meeting is to be downloaded. The first acceptance unit accepts first electric energy information indicating electric energy necessary to download the information. The second acceptance unit accepts second electric energy information indicating electric energy necessary to present the information in the meeting. The measurement unit measures remaining electric energy. The third acceptance unit accepts a result of subtraction of the electric energy indicated by the first electric energy information and the electric energy indicated by the second electric energy from the remaining electric energy. The restriction unit imposes, on the basis of the subtraction result, a restriction on a function in a first time period and in a second time period.

Abstract: Systems and methods are disclosed for conserving power consumption in a memory system. One such system comprises a system on chip (SoC) and an encoder. The SoC comprises one or more memory clients for accessing a dynamic random access memory (DRAM) memory system coupled to the SoC. The encoder resides on the SoC and is configured to reduce a data activity factor of memory data received from the memory clients by encoding the received memory data according to a compression scheme and providing the encoded memory data to the DRAM memory system. The DRAM memory system is configured to decode the encoded memory data according to the compression scheme into the received memory data.

Abstract: An operation method of a system platform includes steps of: transmitting, by an infrared receiver, a received infrared signal to a transmission interface; transmitting, by the transmission interface, an interrupt notification signal to an operation system power management agent (OSPM) through an advanced configuration and power interface (ACPI); receiving, by an infrared application program of an operating system, the interrupt notification signal from the OSPM, so as to generate a system management interrupt (SMI) in a universal extensible firmware interface (UEFI) basic input output system (BIOS) to execute a system management mode (SMM) program; and executing, by the UEFI BIOS, a decoding driver program, and receiving the infrared signal from the transmission interface, so as to decode the infrared signal into event data, and store the event data in a storage device.

Abstract: A method generates an asynchronous trigger signal in a position-measuring device having a position-sensing unit, a processing unit and an interface unit. The position-measuring device is connectable via the interface unit and a bidirectional data channel to subsequent electronics for communication purposes. A synchronous data stream is generated from an asynchronous data stream arriving at the position-measuring device from a direction of the subsequent electronics by sampling the asynchronous data stream in a time pattern of a clock signal. A gate signal is generated upon an enable condition for outputting the trigger signal being detected by evaluating the synchronous data stream. The asynchronous trigger signal is generated upon the gate signal being present and a signal edge of the asynchronous data stream occurring.

Abstract: A dockable device and a power method thereof are provided. The dockable device includes a main device, a main device battery, a connector, a switch and a voltage down-converter. The connector may be coupled to a docking device. The switch, coupled to the main device battery, is configured to be closed to provide power to the main device from the main device battery. The voltage down-converter is configured to provide power with a backup voltage to the main device, wherein the backup voltage is less than a discharge voltage output by a fully discharged main device battery.

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, using a modulation and coding scheme (MCS) value as a factor for guidance. According to one aspect, the device may be in a reception mode. While in a first power mode, the device may receive control information for incoming data that is being transmitted via a transmission frame. The control information may be located in a first portion of the frame with the data following in a second portion of the frame. The control information may include or otherwise indicate an MCS value corresponding to the MCS applied to the incoming data. Based on the MCS value, the device may be adaptively switched to a second power mode for receiving the incoming data.

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, and implementing lower power modes with various modes of the device. According to one aspect, the mode of the device may be a beacon monitoring mode or a delivery traffic indication message (DTIM) mode. In such a mode, the device may receive a portion of a beacon in a first power mode. The device may transition to a second, different (e.g., higher) power mode using information contained in the received portion of the beacon as guidance.

Abstract: A control device is provided. A first counting unit counts and generates a first output signal. When a counting value of the first counting unit is equal to a first pre-determined value, the first output signal is at a first level. When the counting value of the first counting unit is not equal to the first pre-determined value, the first output signal is at a second level. A second counting unit counts and generates a second output signal. When a counting value of the second counting unit is equal to a second pre-determined value, the second output signal is at the second level. When the counting value of the second counting unit is not equal to the second pre-determined value, the second output signal is at the first level. A determination unit generates a reset signal according to the levels of the first and second output signals.

Abstract: Embodiments of the present disclosure provide systems and/or methods for managing power distribution over a USB topology. In some embodiments, a host device is coupled to an upstream facing port device (UFP device) via a USB compliant connection, and a USB device is coupled to a downstream facing port device (DFP device) via a USB compliant connection. The UFP device and DFP device are connected via a non-USB compliant extension medium. In various embodiments, the UFP device and DFP device may be individually powered by different types of sources (such as external power sources, power distributed over the extension medium, batteries, USB bus power, and/or the like). The UFP device and DFP device cooperate to provide USB power distribution functionality throughout the USB topology despite the presence of the non-USB compliant extension medium.

Abstract: The invention relates to a system comprising a main electrical unit (2) and a peripheral electrical unit (3, 4,5), wherein the main electrical unit and the peripheral electrical unit are switchable between a low-power mode and a high-power mode. The main electrical unit is adapted to hand over a control of the system to the peripheral electrical unit, if the peripheral electrical unit is in the high-power mode, and to switch from the high-power mode to the low-power mode, after the control has been handed over. The peripheral electrical unit is adapted to receive the control from the main electrical unit and to control the system, if the peripheral electrical unit is in the high-power mode. This allows the system to be still in operation mode, although the main electrical unit has been switched to the low-power mode, thereby reducing the power consumption of the system.

Abstract: A system, method and device for providing over-current protection to USB ports comprised in a USB hub, whereby a single switch is used to control the power supply to one or more groups of USB ports based on determinations whether the current drawn by a group of USB ports has exceeded a predefined current limit. Embodiments provide the cost savings associated with gang mode power port switching and the reduced stress on USB components and individualized protection of USB ports associated with individual mode power switching. Embodiments utilize a plurality of current measurement units to measure the current drawn by each group of USB ports supported by a switch and further utilize a power port control logic unit to control the switch based on whether the current measurements have exceeded a current limit.