Abstract: An example device includes a wireless charging circuit to wirelessly charge a portable electronic device. The device further includes a first photosensor positioned within an effective charging range of the wireless charging circuit, the first photosensor to output a first signal, and a second photosensor positioned outside the effective charging range, the second photosensor to output a second signal. The device further includes a control circuit connected to the wireless charging circuit, the first photosensor, and the second photosensor. The control circuit detects the portable electronic device positioned within the effective charging range of the wireless charging circuit by detecting a difference between the first signal and the second signal. The control circuit turns on the wireless charging circuit in response to detecting the difference. The control circuit turns off the wireless charging circuit in response to detecting that the first signal matches the second signal.

Abstract: An example device includes a physical storage medium, a wireless power circuit, and a portable sealed housing containing the physical storage medium and the wireless power circuit. The physical storage medium stores a first security protocol to activate the wireless power circuit, and a second security protocol to allow data transfer between the physical storage medium and a host device.

Abstract: Examples of a protection circuit for an interface are described. In an example, the protection circuit comprises an electrostatic discharge (ESD) module. The ESD module suppresses a discharge voltage caused due to an electrostatic discharge. The ESD module may be further coupled to a capacitive element and a resistive element. The capacitive element is to route discharge voltage caused due to an electrostatic discharge, while the resistive element is to route a reverse DC operated voltage.

Abstract: An example device includes a physical storage medium, a wireless power circuit, and a portable sealed housing containing the physical storage medium and the wireless power circuit. The physical storage medium stores a first security protocol to activate the wireless power circuit, and a second security protocol to allow data transfer between the physical storage medium and a host device.

Abstract: An example camera system for tracking a target object within a coverage area, the camera system includes: a camera having a primary field of view; a plurality of auxiliary sensors, each auxiliary sensor to generate auxiliary sensor data representing a respective auxiliary field of view of at least a portion of the coverage area; a controller to: obtain the auxiliary sensor data from each of the auxiliary sensors; and determine, based on the auxiliary sensor data, a location of the target object within the coverage area; and a motor connected to the camera to rotate the camera to locate the target object within the primary field of view.

Abstract: In some examples, the disclosure describes a device that includes heat generating devices, a fan, and a processor to: determine a temperature within an area of the heat generating devices, activate the fan in a pulse width modulation (PWM) mode in response to the temperature being above a temperature threshold, activate the fan in a direct current (DC) mode in response to the temperature being below the temperature threshold.

Abstract: In one example, a computing device may include a circuit board having a contact pad disposed at an edge of the circuit board, and a chassis in which the circuit board is installed. The chassis may include a circuit board holder to engage the edge of the circuit board to retain the circuit board in a defined position relative to the chassis. The circuit board holder may be grounded. Further, the computing device may include a controller to receive a signal from the contact pad, the signal indicative of a presence of the circuit board holder contacting the contact pad. Furthermore, the controller may detect a form factor type of the chassis based on the received signal.

Abstract: Examples of power management apparatuses, computing devices, and methods for disabling a phase of a power supply unit based on a power mode of a computing device are described herein. In an example, upon receiving an indication of the power mode of the computing device from a switching circuit, the power supply unit may disable the phase.

Abstract: Example implementations relate to transmitting signals via USB ports. For example, a system according to the present disclosure, may include a host module including a plurality of USB ports, a first expansion module, and a second expansion module. The first expansion module may include a first USB port and a second USB port. The first expansion module may receive a signal from the host module at a first USB port, and direct the signal to a second USB port. The first expansion module may transmit the signal to a second expansion module via a second USB port.

Abstract: An example disclosed herein is a non-volatile storage medium including instructions relating to control of power that, when executed by a processor, cause the processor to monitor a supply of power to a regulator, decouple supply of power to the regulator when the monitored supply of power is below a predetermined level, couple a power pack to the regulator to supply power to the regulator when the monitored supply of power is below the predetermined level, and generate an Advanced Configuration and Power Interface (ACPI) G1 Sleeping state signal when the monitored supply of power is below the predetermined level.

Abstract: Example implementations relate to transmitting signals via USB ports. For example, a system according to the present disclosure, may include a host module including a plurality of USB ports, a first expansion module, and a second expansion module. The first expansion module may include a first USB port and a second USB port. The first expansion module may receive a signal from the host module at a first USB port, and direct the signal to a second USB port. The first expansion module may transmit the signal to a second expansion module via a second USB port.

Abstract: An example printed circuit board assembly (PCBA) includes a controller and a plurality of conductive contacts. The conductive contacts are coupled to the controller. The controller is to determine a type of chassis to which the PCBA is mounted.

Abstract: An example printed circuit board assembly (PCBA) includes a controller and a plurality of conductive contacts. The conductive contacts are coupled to the controller. The controller is to determine a type of chassis to which the PCBA is mounted.

Abstract: An example disclosed herein is a non-volatile storage medium including instructions relating to control of power that, when executed by a processor, cause the processor to monitor a supply of power to a regulator, decouple supply of power to the regulator when the monitored supply of power is below a predetermined level, couple a power pack to the regulator to supply power to the regulator when the monitored supply of power is below the predetermined level, and generate an Advanced Configuration and Power Interface (ACPI) G1 Sleeping state signal when the monitored supply of power is below the predetermined level.

Abstract: Circuits for preventing power drawn by a load from exceeding a threshold are provided. A first circuit monitors power supplied to the load and disables a power supply if a threshold is exceeded. A second circuit disconnects the load from the power supply if the threshold is exceeded.

Abstract: A document storage device includes a document storage rack, a document distributing apparatus, and a transmitting roller. The document storage rack defines a first storage space and a second storage space. A first protecting door is mounted on the document storage rack to close and lock the first storage space. The second storage space is readily accessible. The document distributing apparatus includes a controlling pole and a first distributing roller connected to the controlling pole. The transmitting roller transmits a document to the first distributing roller. The controlling pole moves the first distributing roller between a first position and a second position. In the first position, the first distributing roller transmits the document into the first storage space. In the second position, the first distributing roller transmits the document into the second storage space.

Abstract: A document storage device includes a document storage rack, a document distributing apparatus, and a transmitting roller. The document storage rack defines a first storage space and a second storage space. A first protecting door is mounted on the document storage rack to close and lock the first storage space. The second storage space is readily accessible. The document distributing apparatus includes a controlling pole and a first distributing roller connected to the controlling pole. The transmitting roller transmits a document to the first distributing roller. The controlling pole moves the first distributing roller between a first position and a second position. In the first position, the first distributing roller transmits the document into the first storage space. In the second position, the first distributing roller transmits the document into the second storage space.

Abstract: A damping device includes a base and an arm. The base includes a base board and a cantilever located on the base board. The arm is pivotably mounted to the base board about a pivot axis. The arm is rotatable from a first position to a second position. The cantilever is urged and is resiliently deformed away from the pivot axis. A distance between the pivot axis and a contact surface, which is between the arm and the cantilever at the first position is smaller than that in the second position.

Abstract: A semiconductor memory and address-decoding circuit and method for decoding address allow the semiconductor memory to operate under a decreased capacity by disabling or hiding a predetermined portion of the semiconductor memory. The semiconductor memory has a first address-inputting circuit configured to receive a first external address, a switching circuit configured to switch a predetermined portion of the first external address to form an internal address, at least one address-setting code configured to set at least one predetermined bit of the internal address, a decoder coupling to the switching circuit and the address-setting code, and a memory array coupling to the decoder, wherein the decoder is configured to select at least one memory unit of the memory array based on the internal address. The first address-inputting circuit, the switching circuit and the address-setting code can be considered as an address-decoding circuit.

Abstract: A semiconductor memory and address-decoding circuit and method for decoding address allow the semiconductor memory to operate under a decreased capacity by disabling or hiding a predetermined portion of the semiconductor memory. The semiconductor memory comprises a first address-inputting circuit configured to receive a first external address, a switching circuit configured to switch a predetermined portion of the first external address to form an internal address, at least one address-setting code configured to set at least one predetermined bit of the internal address, a decoder coupling to the switching circuit and the address-setting code, and a memory array coupling to the decoder, wherein the decoder is configured to select at least one memory unit of the memory array based on the internal address. The first address-inputting circuit, the switching circuit and the address-setting code can be considered as an address-decoding circuit.