Abstract: An amplifier system may include at least one alternating current (AC) input source, a first DC-DC converter configured to convert the AC voltage to a first rail voltage, a second DC-DC converter configured convert the AC voltage to a second rail voltage, and a Class D amplifier configured to receive the first rail voltage on a first positive rail from the first DC-DC converter and the second rail voltage on a second negative rail from the second DC-DC converter to reduce rail pumping of the first and second voltage rails.

Abstract: An omnidirectional loudspeaker having an inverted dome diaphragm disposed operably connected to a motor assembly and a phasing plug mounted to the motor assembly. The phasing plug has a top portion facing a convex surface of the inverted dome diaphragm and a bottom portion extending downward from the top portion along the central axis with a plurality of concentric apertures extending therethrough. Each aperture has a predetermined radial width and is spaced a predetermined concentric distance from an adjacent aperture. The plurality of concentric apertures cooperates with a compression chamber between the convex surface of the inverted dome diaphragm and the top portion of the phasing plug. Each aperture has a predetermined radial width, is spaced a predetermined concentric distance from an adjacent aperture and extends through the phasing plug exiting at the bottom portion.

Abstract: An amplifier system may include at least one input source, a flyback converter including a pair of complementary metal oxide silicon field effect transistor (MOSFETs), a controller integrated circuit (IC) having a quasi-resonant (QR) pin and configured to provide a biased drive current to the flyback converter, and a transition component arranged at the controller IC and configured to correct pulse width modulation at the IC to ensure the voltage at a transition pin of the IC is above a predefined threshold during a resonant transition.

Abstract: A compression driver for an omnidirectional loudspeaker having an inverted dome diaphragm, a phasing plug having a top portion facing a convex surface of the inverted dome diaphragm and a plurality of concentric apertures that cooperate with the convex surface of the inverted dome diaphragm. Each aperture has a predetermined radial width and is spaced a predetermined concentric distance from an adjacent aperture converging at an exit of the phasing plug. The compression driver has a dispersion control assembly mounted to the bottom portion of the phasing plug along the central axis.

Abstract: A central server communicates requests from the at least one third-party device, in a plurality of third-party devices having a TCP connection with the central server, to a target device using the TCP connection established between the central server and a point-to-point receiver. The central server receives data from the target device using the TCP connection established between the central server and the point-to-point receiver. The central server delivers data to all of the plurality of third-party devices using the TCP connections established between the central server and each of the plurality of third-party devices.

Abstract: An amplifier system having first and second interleaved half bridge stages and a coupled inductor. The coupled inductor has a primary winding and a secondary winding, a first end of the primary winding is coupled to the first half bridge stage at a first node, a second end of the primary winding is coupled to the load, a first end of the secondary winding is coupled to the load, a second end of the secondary winding is coupled to the second half bridge stage at a second node. An inductor circuit is coupled between the first and second half bridge stages and a first end of a load circuit.

Abstract: The present disclosure relates to power management of a remote control device by a host control device. In one embodiment, a method for power management includes detecting, by a host control device, a status indication of the remote control device, wherein the status indication is associated with a power-on state of the remote control device. The method also includes monitoring received sensor data associated with user presence, and outputting a control signal to the remote control device for the remote control device to enter a low power state. Power management may be provided for loudspeaker units, communications devices, and display devices.

Abstract: Upon detection, by a central server, of failed unit and a replacement unit, a manifest for the failed unit encrypted with a first key known by the central server and each unit in a plurality of units. The manifest also contains a configuration bundle encrypted with a second key known only to each of the units so it cannot be decrypted by the central server. The manifest is pushed to the replacement unit where it is decrypted by the replacement unit using the first and second keys so that the archived settings and the configuration bundle may be migrated from the failed unit to the replacement unit.

Abstract: Receiving user gesture input commands and interpreting the commands to conduct presentation level control system processing and related presentation communications includes, in one example, detecting an input gesture command via a controller and processing the input gesture command via a processor. The example may also include retrieving at least one data file object responsive to the processed input gesture command, and transmitting the at least one media object to a remote device.

Abstract: A spool apparatus is described to include in one particular example a cable spool with a first cylindrical lip and a second cylindrical lip on an opposite side of the cable spool. A center of the spool includes a clutch bearing in the center of both the first cylindrical lip and the second cylindrical lip that provides a rotational axis for the cable spool to rotate around. The apparatus may also include a feed slot near the first cylindrical lip that provides a passage for cable to pass from the second cylindrical lip to the first cylindrical lip.

Abstract: Disclosed are an apparatus and method of creating, displaying and utilizing quick response (QR) codes to perform processing an application on a mobile device and a control system network. One example method of operation may include identifying a user information parameter and generating a symbology code image that includes the user information parameter and displaying the symbology code on a mobile device display.

Abstract: Mounting a device to the wall for surveillance or other similar purposes may be performed without permanent screws or other tool-requiring components. One example device may include a mount plate, a number of magnets embedded in the mount plate, and a number of gravity reducing protrusions on the mount plate to provide a resting surface for a device mounted to the mount plate.

Abstract: A method and apparatus of translating and mapping received commands between operating system languages and/or protocol-based languages. One example method may provide receiving an action initiated by an external source, such as a person or automated action selection operation. The method may also include identifying the action as a predetermined command of a first computer operating language stored in a memory and mapping the predetermined command to a corresponding protocol command of a different computer operating language, and executing the corresponding protocol command after the mapping operation.

Abstract: The present disclosure relates to power management of a remote control device by a host control device. In one embodiment, a method for power management includes detecting, by a host control device, a status indication of the remote control device, wherein the status indication is associated with a power-on state of the remote control device. The method also includes monitoring received sensor data associated with user presence, and outputting a control signal to the remote control device for the remote control device to enter a low power state. Power management may be provided for loudspeaker units, communications devices, and display devices.