Systems, methods, and computer-readable media for managing near field communications during a low power management mode of an electronic device are provided that may make credentials of a near field communication (“NFC”) component appropriately secure and appropriately accessible while also limiting the power consumption of the NFC component and of other components of the electronic device.

A power management controller is disclosed. Broadly speaking, the controller may, in response to receiving a timing signal, monitor a temperature of an integrated circuit including multiple processor clusters. The controller may generate a comparison of the temperature and a threshold value, and in response to a determination that the comparison indicates that the temperature is less than the threshold value, transition a particular processor cluster to a new power state.

A storage controller has an operating system (OS) and power control firmware configured to manage use of battery power during a power outage event. The OS specifies to the power control firmware first and second sets of physical components that should be shed by power control firmware during a two-phase vault process. Upon a power failure, the power control firmware turns off power to the first set of physical components and notifies the OS of the power failure. The OS determines whether to abort or continue the vault process. If the OS aborts the vault process, the power control firmware restores power to the first set of physical components. If the OS continues the vault process, the power control firmware turns off power to the second set of physical components, the OS saves application state, and moves all data from volatile memory to persistent memory.

Described are mechanisms and methods for implementing highly configurable power delivery management policies. An apparatus may comprise a first circuitry, a second circuitry, a third circuitry, and a fourth circuitry. The first circuitry may include a memory to store a first table having one or more first entries and to store a second table having one or more respectively corresponding second entries. The second circuitry may, upon the occurrence of an event, test a condition specified by an entry in the first table. The third circuitry may, upon the test of the condition having a positive result, evaluate a set of one or more parameters as specified by an entry in a second table corresponding with the entry in the first table. The fourth circuitry may initiate a power-management action based upon the evaluation of the set of one or more parameters.

An information handling system includes resistive short detection circuitry that measures a first amount of power provided by a power supply system, and measures a second amount of power drawn by components. The resistive short detection circuitry compares the first amount of power with the second amount of power. In response to first amount of power being greater than the second amount of power, the resistive short detection circuitry determines that a short exists within the information handling system.

A hand-held device with a sensor for providing a signal indicative of a position of the hand-held device relative to an object surface enables power to the sensor at a first time interval when the hand-held device is indicated to be in a position that is stationary and adjacent relative to the object surface, enables power to the sensor at a second time interval shorter than the first time interval when the hand-held device is indicated to be in a position that is moving and adjacent relative to the object surface, and enables power to the sensor at a third time interval when the hand-held device is determined to be in a position that is removed relative to the object surface.

In various implementations, a method of presenting video streams at a head-mountable device (HMD) includes generating a first video stream at a first frame rate for a first display portion. In some implementations, the first frame rate indicates a rate at which frames are presented by the first display portion. In various implementations, the method includes generating a second video stream at a second frame rate for a second display portion. In some implementations, the second frame rate indicates a rate at which frames are presented by the second display portion. In some implementations, the second frame rate is within a threshold relative to the first frame rate. In various implementations, the method includes temporally shifting the second video stream relative to the first video stream so that a majority of refresh times of the first display portion are different from refresh times of the second display portion.

Power consumption of a cooling fan of an information processing device is reduced. A processor reduces a speed of the cooling fan provided in the information processing device, and controls the cooling fan at a first speed when there is no problem with the operation of the information processing device, the first speed being obtained by reducing the speed of the cooling fan. An interface transmits first information indicating the first speed to a management device. The processor receives second information indicating a second speed from the management device that associates the first speed with identification information identifying the information processing device and stores therein the first information indicating the first speed and the identification information, and controls the speed of the cooling fan according to the second speed when the second speed is lower than the first speed.

An integrated circuit (IC) is disclosed herein for adaptive power multiplexing with a power distribution network. In an example aspect, the integrated circuit includes a first power rail, a second power rail, and a load power rail. The integrated circuit also includes multiple power-multiplexer tiles and power-multiplexer control circuitry. The multiple power-multiplexer tiles are coupled in series in a chained arrangement and configured to jointly perform a power-multiplexing operation. Each power-multiplexer tile is configured to switch between coupling the load power rail to the first power rail and coupling the load power rail to the second power rail. The power-multiplexer control circuitry is configured to control a direction of current flow to prevent cross-conduction between the first power rail and the second power rail during the power-multiplexing operation.

Aspects disclosed in the detailed description include power saving techniques in computing devices. In particular, as data is received by a modem processor in a computing device, the data is held until the expiration of a modem timer. The data is then passed to an application processor in the computing device over a peripheral component interconnect express (PCIe) interconnectivity bus. On receipt of the data from the modem processor, the application processor sends data held by the application processor to the modem processor over the PCIe interconnectivity bus. The application processor also has an uplink timer. If no data is received from the modem processor before expiration of the uplink timer, the application processor sends any collected data to the modem processor at expiration of the uplink timer. However, if data is received from the modem processor, the uplink timer is reset.