Abstract: Transmitters and/or receivers in a wireless power transfer system predict power losses to account for presence of foreign objects.

Abstract: Transmitters and/or receivers in a wireless power transfer system predict power losses to account for presence of foreign objects.

Abstract: A wireless power transmitter (WPT) can include WPT circuitry having a wireless WPT coil that transmits wireless power signals; and control circuitry coupled to the WPT circuitry that: measures a present value of a first function of quality factor and resonant frequency of the wireless power transmitting coil and a present value of a second function of quality factor and resonant frequency of the WPT coil while the WPT is coupled to a wireless power receiver; determines a change between the measured present values and corresponding baseline values of the first and second functions of quality factor and resonant frequency of the WPT coil; determines a z-axis separation responsive to the change between the measured present values and corresponding baseline values of the first and second functions of quality factor and resonant frequency exceeding a threshold in a magnetic state space.

Abstract: A wireless power transmitter (WPT) can include WPT circuitry having a wireless WPT coil that transmits wireless power signals; and control circuitry coupled to the WPT circuitry that: measures a present value of a first function of quality factor and resonant frequency of the wireless power transmitting coil and a present value of a second function of quality factor and resonant frequency of the WPT coil while the WPT is coupled to a wireless power receiver; determines a change between the measured present values and corresponding baseline values of the first and second functions of quality factor and resonant frequency of the WPT coil; determines whether a foreign object is present responsive to the change between the measured present values and corresponding baseline values of the first and second functions of quality factor and resonant frequency exceeding a threshold in a magnetic state space.

Abstract: An electronic device can include a wireless power transfer coil, an inverter having an input coupled to an input power source and an output coupled to the wireless power transfer coil, control circuitry that operates the inverter to deliver power from the input power source to a wireless power receiver coupled to the wireless power transfer coil, communication circuitry that allows communication with the wireless power receiver, and an auxiliary cooler and associated control circuitry that operates the auxiliary cooler, responsive to one or more temperature measurements, to transfer heat from the electronic device to an ambient environment.

Abstract: A wireless power transmission system comprising a wireless power transmitting device and a wireless power receiving device. The wireless power receiving device is configured to enter a cloak state when a temporary pause in power transfer is desired. The wireless power receiving device may allow or deny a communication data stream with the wireless power transmitting device during the cloak state. The wireless power receiving device may request a hot start power transfer phase with the wireless power transmitting device after the cloak state. The wireless power transmitting device may or revert (reset) to a default operating state in the event that a control error packet is received during the cloak state.

Abstract: A wireless power system has a wireless power transmitting device such as a charging puck and a wireless power receiving device such as a battery-operated device. The charging puck may be connected to a plug via a cable. The plug may include a boot and a connector. The boot may house a printed circuit board that is positioned closer to one of the boot housing walls.

Abstract: A wireless power system has a wireless power transmitting device such as a charging puck and a wireless power receiving device such as a battery-operated device. The charging puck may be connected to a plug via a cable. The plug may include a boot and a connector. The boot may house a printed circuit board that is positioned closer to one of the boot housing walls.

Abstract: A wireless power system may have a wireless power transmitting device and wireless power receiving devices. The wireless power transmitting device has wireless power transmitting circuitry with coils to transmit wireless power to wireless power receiving devices. The wireless power receiving devices are placed on the wireless power transmitting device in an order. Batteries in the wireless power receiving devices are charged based at least partly on the order. Power allocation is based on utilization factor information such as information on a power draw associated with each of the power receiving devices. Measurement circuitry in the wireless power transmitting device is used to gather impedance images from the coils. Changes in the impedance images are used to temporarily halt power transmission. Power transmission is resumed depending on whether in-band communications are lost or are maintained.

Abstract: A wireless power system may have a wireless power transmitting device and wireless power receiving devices. The wireless power transmitting device has wireless power transmitting circuitry with coils to transmit wireless power to wireless power receiving devices. The wireless power receiving devices are placed on the wireless power transmitting device in an order. Batteries in the wireless power receiving devices are charged based at least partly on the order. Power allocation is based on utilization factor information such as information on a power draw associated with each of the power receiving devices. Measurement circuitry in the wireless power transmitting device is used to gather impedance images from the coils. Changes in the impedance images are used to temporarily halt power transmission. Power transmission is resumed depending on whether in-band communications are lost or are maintained.

Abstract: A method and apparatus for method for transferring files between a primary storage system and a backup and restore system is described. The system generates collapsed extents which are used to specify data to be backed up to a backup and restore system. The backup and restore system backs up data based on the collapsed extents but records all extents included in the collapsed extents to enable the system to facilitate restoration of the data at a later point in time.

Abstract: A method and apparatus for method for transferring files between a primary storage system and a backup and restore system is described. The system generates collapsed extents which are used to specify data to be backed up to a backup and restore system. The backup and restore system backs up data based on the collapsed extents but records all extents included in the collapsed extents to enable the system to facilitate restoration of the data at a later point in time.

Abstract: A method of attribute based resource allocation is presented. A resource such as a pool of storage has certain properties or attributes associated with portions of the pool. When a request for storage is needed, the requester provides a selection expression which comprises properties and logical operators. From the selection expression a determination is made to allocate portions of the storage pool which meet the requirements of the selection expression.

Abstract: An information recovery system mounts partial database replications, such as selected tablespaces, on a target host.

Abstract: A method and apparatus for method for transferring files between a primary storage system and a backup and restore system is described. The system generates collapsed extents which are used to specify data to be backed up to a backup and restore system. The backup and restore system backs up data based on the collapsed extents but records all extents included in the collapsed extents to enable the system to facilitate restoration of the data at a later point in time.

Abstract: A backup server controls the backing up of data stored on a mass storage subsystem in response to a backup request from a host identifying data to be backed up during a backup operation, the mass storage subsystem storing data in a plurality of mirrored copies. The backup server comprises a discovery module, a preparation module, an execution module and a clean-up module. The discovery module receives the backup request and identifies, during a discovery phase, at least one storage location on the mass storage subsystem on which data to be backed up during the backup operation is stored. The preparation module, during a preparation phase following the discovery phase, enables the mass storage subsystem to sever one of said mirrored copies and make it available to backup server for the backup operation.

Abstract: A backup server controls the backing up of data stored on a mass storage subsystem in response to a backup request from a host identifying data to be backed up during a backup operation, the mass storage subsystem storing data in a plurality of mirrored copies. The backup server comprises a discovery module, a preparation module, an execution module and a clean-up module. The discovery module receives the backup request and identifies, during a discovery phase, at least one storage location on the mass storage subsystem on which data to be backed up during the backup operation is stored. The preparation module, during a preparation phase following the discovery phase, enables the mass storage subsystem to sever one of said mirrored copies and make it available to backup server for the backup operation.