A case for portable electronic devices such as smartphones includes a feature to prevent glare from a flash from affecting images and video captured by a camera lens and also may include a battery to extend battery life of the electronic device. Smartphones have telephony, Internet connectivity, and camera and video features. Photos and video may be uploaded through the Internet or sent to other phones. The case has a hole for a camera flash of the smartphone. The edging of the hole is colored black or another dark color to prevent glare from appearing in the photos or video taken by the smartphone when using the camera flash.

Device power consumption is reduced by operating using both one-way and two-way communication techniques. In an aspect a device operates in a first mode enabling one-way communication to an other device for a first portion of device operation time. The first mode includes transmitting a first set of messages to the other device while turning off a power supply used by a receiver of the device. The device switches between operating in the first mode and the second mode. The second mode enables two-way communication between the device and the other device for a second portion of device operation time less than the first portion of device operation. The second mode includes transmitting a second message to the other device, and in response to the transmitting the second message, turning on the power supply used by the receiver.

Embodiments of the present invention disclose a method for managing wiredly and wirelessly charging at least one of a fixed, portable and wearable computing and communications device. The method may comprise wirelessly charging a first of the at least one of fixed, portable and wearable computing and communications device serving as sink consuming power, when subjected to charging, using a wireless receiver detachably coupled to a smart adaptor subsystem via a first pair of magnetic connectors, detachably magnetically coupling a USB cable via second and third pairs of magnetic connectors correspondingly to a second of the at least one of fixed, portable and wearable computing and communications device serving as source supplying power, when subjected to charging, and the smart adaptor subsystem for facilitating wiredly charging the first of the at least one of fixed, portable and wearable computing and communications device, upon detachably magnetically coupling the USB cable, generating a cable detection signal using at least one of the wireless receiver and smart adaptor subsystem, upon successfully detecting the USB cable, generating an enable signal facilitating initiation of the smart adaptor subsystem using at least one of the wireless receiver and smart adaptor subsystem and upon generating the enable signal, automatically disabling the wireless receiver using the smart adaptor subsystem, thereby facilitating wiredly charging the first of the at least one of fixed, portable and wearable computing and communications device.

Systems, devices and automated processes are provided for configuring backup battery power for RF radio operations at a base station, including a module configured to communicate with an API tool to receive a plurality of data sets using an open API format about metrics of various operating distributed power sources; a cell site module configured to monitor power usage at a cell site and to generate a series of data sets about the power usage at the cell site; an analysis module configured to correlate the plurality of data sets of the various operated distributed power sources with the series of data sets of power usage at the cell site; the analysis module to forecast a frequency and a duration of a power outage at the cell site based on metrics of correlated data of the data sets of the various operated distributed power sources and the series of data sets about power usage at the cell site; and a backup power supply configured with a capacity at the cell site based on the metrics derived from the correlated data wherein the capacity backup power supply is determined in accordance the frequency and the duration of the power outage at the cell site.

A method for providing electromagnetic shielding of a semiconductor die includes attaching a semiconductor die to a package substrate of a packaged radio frequency module, where the package substrate includes one or more radio frequency circuits fabricated therein. The method also includes encapsulating the semiconductor die with a molding compound. The method also includes at least partially covering the molding compound with an electromagnetic shielding structure having an outer layer including cobalt. A phone board assembly can include the packaged radio frequency module attached to a printed circuit board. The packaged radio frequency module can be incorporated into a mobile device.

An electronic device may include, for example: a first battery; at least one second battery; a power management module configured to monitor capacity information of the first battery; and a processor electrically connected to the first battery, the at least one second battery, and the power management module. The processor may be configured to: monitor whether a designated event or a low-power state in which a voltage of the first battery drops below a reference value has occurred, while the electronic device is driven using the first battery; determine that the designated event has occurred or that the first battery corresponds to the low-power state; and parallel-connect the first battery and at least one of the at least one second battery, based on determining that the designated event has occurred, or that the first battery corresponds to the low-power state. Various other embodiments are possible.

Techniques for operating cellular internet of things (IoT) devices under a public cellular carrier are disclosed. During an active connection, the cellular IoT device's radio-controlling application can collect radio metrics by tapping into the diagnostics interface of IoT device's cellular modem to collect data regarding accumulative signal strength, block/bit error rate, and/or round-trip latency for the session, etc. During the active connection, battery and environmental information as well as application-based information can be collected and sent to a remote computing device. In an example, the cellular IoT device can be given revised or refined values for use in timers, which may be used by the device to more efficiently use idle and/or power-save modes to reduce battery power consumption. Moreover, the use of the timers may be extended to devices distinct from the cellular modem, thereby increasing the utility of the timers and the functionality of the IoT device.

A method performed by a control node for a radio access network. The control node may select an energy source from a plurality of energy sources connected to a base station based on selecting an energy rate of one of the energy sources correlated in time with a radio traffic power usage of the base station. The selection may be made from a plurality of energy rates for the plurality of energy rates correlated in time for each energy source with a radio traffic power usage of the base station. The selected energy rate may improve at least one operating parameter of the selected energy source. The control node may activate the selected energy source for use by the base station. A further method performed by a global control node may be provided.

An electronic device includes: a location measurement circuitry; a rechargeable battery; a memory configured to store instructions; and at least one processor. The at least one processor may be configured to execute the instructions to: monitor a usage pattern of the battery while the electronic device operates in a first power management state; acquire, based on determining that the usage pattern of the battery is different from a reference pattern derived from a model, information on a location in which the battery is estimated to be charged and information on a time at which the battery is estimated to be charged using the model; and switch, partially based on the information on the location and the information on the time, the first power management state to a second power management state based on a second maximum driving frequency lower than the first maximum driving frequency.

A server device is provided, the server device comprising a processing circuitry, a memory circuitry, an interface circuitry configured to connect to a communication network. The server device is configured to obtain machine data indicative of one or more features of a machine. The machine is configured to be powered by a battery device. The server device is configured to obtain usage data indicative of a usage of the machine. The server device is configured to obtain, for one or more battery devices, battery data indicative of one or more battery parameters of a battery device. The server device is configured to determine, for the one or more battery devices, a predicted impact on the one or more battery parameters based on the battery data, the usage data, and the machine data.