Abstract: A drug delivery device includes a housing, a container disposed in the housing, an activation mechanism, a needle insertion mechanism, and a fluid flow path. The container has an inner volume to contain a medicament which is urged out of the container by the activation mechanism. The needle insertion mechanism includes an actuation assembly adapted to insert a needle and a cannula to deliver the medicament from the container and a valve assembly. The fluid flow connection is coupled with the container and the needle insertion mechanism and is adapted to allow the medicament to flow from the container to the needle insertion mechanism. The valve assembly is repeatedly movable between at least a valve open position and a valve closed position to selectively allow and restrict the medicament to flow through the needle and/or the cannula.

Abstract: Methods, systems and devices for wireless communication are described. One example method includes determining, using resources in a wireless network, a schedule of transmissions between the wireless network and one or more user devices, and controlling the transmissions according to the schedule. The resources are distributed between a central unit (CU) and a distributed unit (DU) according to a resource partitioning scheme. The DU is configured to handle a first set of protocol layers of a communication protocol stack implemented in the wireless network according to a layer partitioning scheme and the CU is configured to handle a second set of protocol layers of the communication protocol stack according to the layer partitioning scheme. The first set of protocol layers excludes an upper medium access control (MAC) layer. The second set of protocol layers excludes a physical layer.

Abstract: Described are devices, systems and methods for scheduling multi-user (MU) multiple input multiple output (MIMO) transmissions in a fixed wireless access (FWA) system. One method for scheduling a large number of user devices in a wireless communication system includes a preselection process to pare down the number of user devices to be simultaneously scheduled, and then scheduling that subset of users. In an example, and assuming each user device communicates over a corresponding wireless channel, the preselection process includes determining a number of sets based on a first characteristic of the wireless channels, where each set includes at least one user device, and then determining a subset of user devices by selecting at most one user device from each of the sets. The scheduling of the selected subset of users is based on a scheduling algorithm and a second characteristic of the wireless channels.

Abstract: Described are devices, systems and methods for scheduling multi-user (MU) multiple input multiple output (MIMO) transmissions in a fixed wireless access (FWA) system. One method for scheduling a large number of user devices in a wireless communication system includes a preselection process to pare down the number of user devices to be simultaneously scheduled, and then scheduling that subset of users. In an example, and assuming each user device communicates over a corresponding wireless channel, the preselection process includes determining a number of sets based on a first characteristic of the wireless channels, where each set includes at least one user device, and then determining a subset of user devices by selecting at most one user device from each of the sets. The scheduling of the selected subset of users is based on a scheduling algorithm and a second characteristic of the wireless channels.

Abstract: A method and apparatus for optimizing the data transfer rate over a transport layer (i.e., communication link) such as the Internet is provided. Initially the data is prepared for transmission by a transfer rate controller, then the data is encoded by a Forward Error Correction (FEC) encoder. After the data has been transferred over the transport layer, the quality of the data transfer link is assessed by an FEC decoder that determines if any errors occurred during data transfer and if errors are detected, the magnitude of the errors (i.e., FEC-correctable packets, FEC-uncorrectable packets). This information is used to generate a feedback message which is used by the transfer rate controller to adjust and optimize the data transfer rate for the link quality as determined at that point in time. By continually monitoring and assessing link quality and providing feedback to the transfer rate controller, the transfer rate can be continually adapted to the varying link quality.

Abstract: In a magnetic recording system, an asymmetry detector reverses the phase of a read, single-frequency test signal to indicate to a micro-controller whether recording signal asymmetry is present. Upon detecting such asymmetry, the micro-controller causes a current source coupled to the recording head to adjust a write current to correct the timing of a written data signal.