Abstract: Disclosed are apparatuses and methods for powering up a step-up charge pump circuit. One method embodiment comprises: providing an input voltage at a step-up converter input terminal, without operating the charge pump circuit's phase or series switches; determining that the supply voltages for a first set of voltage regulators are sufficient to operate the phase switches in at least a reduced gate drive mode; after this determination, operating the phase switches without operating the series switches; determining that the supply voltage for one of a second set of voltage regulators is sufficient to operate its corresponding series switch in at least a reduced gate drive mode; and operating the corresponding series switch, after determining that the supply voltage for the one of the second set of voltage regulators is sufficient to operate the corresponding series switch.

Abstract: The present disclosure relates to current sensing, and more particularly, to systems and methods for estimating the output current of a charge pump. In one embodiment, a method for estimating an output current of a charge pump is disclosed. The method comprises measuring, using a first sensing circuit, an input current into a switched capacitor power conversion circuit, and calculating, using a hardware processor, an estimated output current from the switched capacitor power conversion circuit as: IOUT=(IIN×N)?Offset wherein IOUT is the estimated output current, IIN is the measured input current, N is a multiplication or division factor of the switched capacitor power conversion circuit, and Offset is an output current offset.

Abstract: This application discloses systems, devices, and methods for indoor navigation and tracking with a mesh network. In one aspect, a navigation device includes a receiver configured to receive a locational signal from a node network. The locational signal identifies a respective node of the node network, and the node network is distributed throughout a physical space. The navigation device includes a memory storing a program and a processor in communication with the receiver and configured to execute the program to calculate a position of the navigation device from the identity of the respective node, determine a routing instruction from the position of the navigation device to a destination based on the position of the navigation device and a known mapping of the node network in the physical space, and update the position of the navigation device and the routing instruction as the navigation device moves through the physical space.

Abstract: A method to provision a node network including provisioning a first generation of nodes by a root node; and provisioning a second generation of nodes by the first generation of nodes. Wherein at least one node from the first generation of nodes or the second generation of nodes is provisioned simultaneously with at least one other node from the first generation of nodes or the second generation of nodes.

Abstract: In accordance with embodiments, methods for the recovery of security credentials of a Bluetooth mesh network are disclosed. A computing device of the Bluetooth mesh network receives user login information, and generates a network key of the Bluetooth mesh network based on the user login information. The computing device generates an application key of a first node to be provisioned based on user login information. A device key is generated using the unicast address of the first node and part of user credentials. The current sequence number is recovered by one of the four techniques depending on the characteristics of the network. The unicast addresses of the nodes are assumed to be sequential and later validated by sending messages. IV index is recovered using processes defined in the Bluetooth mesh standard. After recovery of the above parameters, the mesh network can operate normally using the aforementioned computing device.

Abstract: This application discloses systems, devices, and methods for indoor navigation and tracking with a mesh network. In one aspect, a navigation device includes a receiver configured to receive a locational signal from a node network. The locational signal identifies a respective node of the node network, and the node network is distributed throughout a physical space. The navigation device includes a memory storing a program and a processor in communication with the receiver and configured to execute the program to calculate a position of the navigation device from the identity of the respective node, determine a routing instruction from the position of the navigation device to a destination based on the position of the navigation device and a known mapping of the node network in the physical space, and update the position of the navigation device and the routing instruction as the navigation device moves through the physical space.

Abstract: This application discloses systems, devices, and methods for indoor navigation and tracking with a mesh network. In one aspect, a navigation device includes a receiver configured to receive a locational signal from a node network. The locational signal identifies a respective node of the node network, and the node network is distributed throughout a physical space. The navigation device includes a memory storing a program and a processor in communication with the receiver and configured to execute the program to calculate a position of the navigation device from the identity of the respective node, determine a routing instruction from the position of the navigation device to a destination based on the position of the navigation device and a known mapping of the node network in the physical space, and update the position of the navigation device and the routing instruction as the navigation device moves through the physical space.

Abstract: This application discloses systems, devices, and methods for indoor navigation and tracking with a mesh network. In one aspect, a navigation device includes a receiver configured to receive a locational signal from a node network. The locational signal identifies a respective node of the node network, and the node network is distributed throughout a physical space. The navigation device includes a memory storing a program and a processor in communication with the receiver and configured to execute the program to calculate a position of the navigation device from the identity of the respective node, determine a routing instruction from the position of the navigation device to a destination based on the position of the navigation device and a known mapping of the node network in the physical space, and update the position of the navigation device and the routing instruction as the navigation device moves through the physical space.

Abstract: In accordance with embodiments, methods for the recovery of security credentials of a Bluetooth mesh network are disclosed. A computing device of the Bluetooth mesh network receives user login information, and generates a network key of the Bluetooth mesh network based on the user login information. The computing device generates an application key of a first node to be provisioned based on user login information. A device key is generated using the unicast address of the first node and part of user credentials. The current sequence number is recovered by one of the four techniques depending on the characteristics of the network. The unicast addresses of the nodes are assumed to be sequential and later validated by sending messages. IV index is recovered using processes defined in the Bluetooth mesh standard. After recovery of the above parameters, the mesh network can operate normally using the aforementioned computing device.

Abstract: A memory card and a communication method between a memory card and a host unit are disclosed. High throughput of data between the memory card and the host unit is guaranteed by providing a communication interface between the memory card and the host unit including a first communication interface between a memory unit of the memory card and a control unit of the memory card and a second communication interface between the control unit of the memory card and the host unit.

Abstract: A system includes a storage subsystem having a data area and a header area. The data area is for storing contents of at least one data file, and the header area is for storing access parameters and status information for accessing each data file individually. The data area and the header area define a storage area in the storage subsystem. Multiple files are efficiently managed based on utilization of the storage area in the storage subsystem.

Abstract: An electronic assembly for iontophoresis transdermal delivery of at least one drug includes an input mechanism configured to receive at least one parameter for iontophoresis transdermal delivery of the at least one drug. The electronic assembly further includes a controller configured to select current intensity and a voltage modulation based on the at least one parameter. The controller is further configured to generate a voltage waveform based on the selected current intensity for a drug delivery period.

Abstract: A system and method of making a firmware self updatable depending on option information stored in a configuration module. The configuration module can either be in a memory device or a memory controller. The self-updation flexibility can be achieved by customizing the options as per the customer's requirements and can be done either through an USB interface or by pre-programming the configuration module or any other communication or programming options. The option information is provided by using a configurable module inside either the memory or the memory controller. After the basic initialization operations, the firmware reads the option information from the controller itself or any other non-volatile memory and performs the tasks to enhance the overall performance.

Abstract: A methodology for efficiently copying data is presented. An internal controller RAM is multiplexed between storing existing RAM data such as look up table data) and storing copy back data with respect to a flash memory. The data in the controller RAM is temporarily stored in a free space of the flash memory. The data of the flash memory, which is to be copied, is read from a source page and is stored in the free space of the controller RAM, and from there, the data is written to a destination block of the flash memory. After completion of the copy back operation, the data of the controller RAM that was moved to the free space is retrieved for storage back in the controller RAM.

Abstract: A memory card and a communication method between a memory card and a host unit are disclosed. High throughput of data between the memory card and the host unit is guaranteed by providing a communication interface between the memory card and the host unit including a first communication interface between a memory unit of the memory card and a control unit of the memory card and a second communication interface between the control unit of the memory card and the host unit.

Abstract: A system includes a storage subsystem having a data area and a header area. The data area is for storing contents of at least one data file, and the header area is for storing access parameters and status information for accessing each data file individually. The data area and the header area define a storage area in the storage subsystem. Multiple files are efficiently managed based on utilization of the storage area in the storage subsystem.