Abstract: Provided herein is a high voltage rail balancer circuit for use in a class D amplifier adapted to sense an imbalance between a positive high voltage power supply and a negative high voltage power supply. The rail balancer circuit comprises a first MOSFET switch connected to the positive high voltage power supply, a second MOSFET switch connected to the negative high voltage supply, and a first resistor-diode circuit adapted to change the first MOSFET switch from a conducting state to a non-conducting state faster than the second MOSFET switch can change from a non-conducting state to a conducting state, and a second resistor-diode circuit adapted to change the second MOSFET switch from a conducting state to a non-conducting state faster than the first MOSFET switch can change from a non-conducting state to a conducting state, such that cross conduction between the first and second MOSFET switches is substantially prevented.

Abstract: A method of switching from delivering a first video signal to a sink to delivering a second video signal to the sink is carried out. A repeater, connected to a previously authenticated sink, receives the first video signal outputted by a previously authenticated first source, and delivers the first video signal to the sink. The repeater receives a command to switch from the first video signal to the second video signal outputted by a second source. The repeater terminates receiving the first video signal, and delivers a temporary video signal to the sink so that the sink remains authenticated while the second source is being authenticated. The repeater sets the frame rate of the temporary video signal to a minimum variable refresh rate (VRR) supported by the sink. Upon authentication of the second source, the repeater receives the second video signal and delivers the signal to the sink.

Abstract: A mounting bracket holds electronic device modules having various sizes and shapes. The mounting bracket includes a mounting plate. An adjustable clamp includes a fixed part attached to the mounting plate, and a movable part that is movable to any spacing from the mounting plate within a preset range and is securable anywhere within the preset range. The adjustable clamp holds an electronic device module against the mounting plate. A movable slat moves along the mounting plate to any distance from the fixed part within a fixed range and is securable to the mounting plate anywhere within the fixed range. The movable slat holds the electronic device module against the fixed part. The mounting bracket therefore holds electronic device modules of various sizes and shapes upon the electronic device module having a thickness within a range of thicknesses and a height within a range of heights.

Abstract: A mounting bracket holds electronic device modules having various sizes and shapes. The mounting bracket includes a mounting plate. An adjustable clamp includes a fixed part attached to the mounting plate, and a movable part that is movable to any spacing from the mounting plate within a preset range and is securable anywhere within the preset range. The adjustable clamp holds an electronic device module against the mounting plate. A moveable slat moves along the mounting plate to any distance from the fixed part within a fixed range and is securable to the mounting plate anywhere within the fixed range. The movable slat holds the electronic device module against the fixed part. The mounting bracket therefore holds electronic device modules of various sizes and shapes upon the electronic device module having a thickness within a range of thicknesses and a height within a range of heights.

Abstract: A mount kit includes a first insertable part having a hollow, cylindrical body and a first plate part attached thereto. An upper surface of the first plate part includes a locking region with a particular shape and dimensions. A second insertable part includes an elongated body and a second plate part attached thereto. A lower surface of the second plate part includes a protrusion that extends away and has a location, shape and dimensions that correspond to those of the locking region. When the elongated body is inserted into a central opening of the first insertable part with the protrusion being inserted into the locking region, the protrusion fits securely and prevents the second insertable part from being turned.

Abstract: A building control system for configuring and deploying electronic devices installed in a building comprising a plurality of space control systems. Each space control system comprises a plurality of electronic devices adapted to communicate via a network to control at least one load installed in the space and a memory that stores device data comprising a unique identifier that uniquely identifies the electronic device within the building control system associated with a device identifier that references the electronic device within the space control system. The electronic devices of one space control system can be configured by assigning at least one setting to at least one device identifier. A template can be created comprising the device identifiers and associated settings of the one of the space control systems. The template can be applied another space control system by applying the settings in the template to electronic devices with matched device identifiers.

Abstract: A system is provided herein comprising: a host audio testing device (HATD) adapted to generate one or more uniquely addressed audio test signals and transmit each generated audio test signal, and which is further adapted to receive audio test data from a bi-directional audio transceiver device (soundbar) device under test (DUT) that can be used in two or more remotely located conference rooms to perform teleconferencing between the remotely located conference rooms; and one or more remote audio generating devices (RATD), each of which is adapted to receive a generated uniquely addressed one or more audio test signals and broadcast the same to the soundbar, wherein each of the RATDs can be located at the same or different distances from the soundbar, the same or different heights with respect to the soundbar, and at the same or different angular placements with respect to the soundbar, and wherein, the HATD is further adapted to store and process the received audio test data from the DUT and generate audio tes

Abstract: Described herein is a compact combined active and passive cooling system to cool electronic audio-video circuitry, wherein all of the AV circuitry and cooling system fits within an enclosure that can be installed in a standard wall gang-box located in interior walls of structures. The combined active and passive cooling system uses convection, conduction, and radiation in active and passive cooling modes to dissipate heat generated by the AV circuitry into the room in which the gang box is located, and further uses the wall plate surface to dissipate heat into the room.

Abstract: A system is provided herein comprising: a host audio testing device (HATD) adapted to generate one or more uniquely addressed audio test signals and transmit each generated audio test signal, and which is further adapted to receive audio test data from a bi-directional audio transceiver device (soundbar) device under test (DUT) that can be used in two or more remotely located conference rooms to perform teleconferencing between the remotely located conference rooms; and one or more remote audio generating devices (RATD), each of which is adapted to receive a generated uniquely addressed one or more audio test signals and broadcast the same to the soundbar, wherein each of the RATDs can be located at the same or different distances from the soundbar, the same or different heights with respect to the soundbar, and at the same or different angular placements with respect to the soundbar, and wherein, the HATD is further adapted to store and process the received audio test data from the DUT and generate audio tes

Abstract: A system is provided herein comprising: a host audio testing device (HATD) adapted to generate one or more uniquely addressed audio test signals and transmit each generated audio test signal, and which is further adapted to receive audio test data from a bi-directional audio transceiver device (soundbar) device under test (DUT) that can be used in two or more remotely located conference rooms to perform teleconferencing between the remotely located conference rooms; and one or more remote audio generating devices (RATD), each of which is adapted to receive a generated uniquely addressed one or more audio test signals and broadcast the same to the soundbar, wherein each of the RATDs can be located at the same or different distances from the soundbar, the same or different heights with respect to the soundbar, and at the same or different angular placements with respect to the soundbar, and wherein, the HATD is further adapted to store and process the received audio test data from the DUT and generate audio tes

Abstract: A workspace authentication system includes a conferencing device having a display screen, a bezel, and a plurality of three-dimensional authentication objects disposed behind respective portions of the bezel. Each three-dimensional authentication object is readable by a light detection and ranging (LIDAR) scanner and encodes authentication data. The bezel includes independently controllable regions configured to selectively reveal less than all of the three-dimensional authentication objects during an authentication workflow. A processor controls the regions of the bezel to expose the three-dimensional authentication objects according to a sequence, receives scan data corresponding to an exposed three-dimensional authentication object from a mobile user device, and authenticates a user when the scan data corresponds to expected authentication data for the sequence.

Abstract: A system and method are described herein for gating at least one input to an amplifier, the method comprising: measuring at least one audio analog signal level received by the amplifier at a first input; determining whether the received at least one audio analog signal level is below a predetermined threshold level; and gating the first input such that the received audio analog signal level is ignored in further processing by the amplifier.

Abstract: Systems, modes, and methods for mounting one or more electronic housings to each other and to a rack mount system, a table mount system, or wall mount system. The mounting system includes a first pair of matching sliding panels that interface with each other in a slidingly engaging manner. Each of the first pair of sliding panels can be mounted to housings prior to being engaged with each other; the engagement of the first pair of sliding panels removably fixes the two housings together; additional housings can be fixed to the first two in a substantially similar manner. In the pair of sliding panels, a first panel includes an upper U-shaped channel and a lower U-shaped channel, each of which are formed by an inner lip and an outer lip, the outer lip being of greater height than the inner lip; the second panel includes an upper U-shaped channel and a lower U-shaped channel, each of which is formed by a wall of the second panel and a respective inner lip of the second panel.

Abstract: A remote control device is disclosed. A single-piece casing has a front surface, rear surface, and pair of opposing side surfaces disposed between the front and rear surfaces. An inner cavity is formed within the casing between the top, bottom and side surfaces and extends along at least part of a length of the casing. A front opening is formed in the front surface and extends into the inner cavity. The front opening is configured to receive a display. At least one key opening is formed in the front surface and extends into the inner cavity. A keypad is configured to be disposed within the inner cavity and includes at least one key positioned on the keypad to extend through the at least one key opening. A chassis has a body configured to be disposed within the inner cavity at least beneath the keypad and the front opening.

Abstract: An acoustic waveguide for use in a unified communications system conference room audio device is described herein, wherein the acoustic waveguide is a generally shepherds-hook shaped object, comprising: a lower, substantially planar non-acoustic wave interfacing surface; and a concave or convex shaped upper acoustic wave interfacing surface, wherein the concave or convex upper acoustic wave interfacing surface comprises a concave or convex shaped surface with a substantially continuously and linearly changing radius from a lower end to an upper end, and wherein when used with a substantially similar second acoustic waveguide that is similarly positioned within the audio device, but wherein the second acoustic waveguide is a mirrored opposite of the first acoustic waveguide, the combination of the two acoustic waveguides are adapted to generate a substantially uniform sound pressure level and radiation pattern about the audio device when each receive respective acoustic audio waves from respective loudspeakers

Abstract: A system and method for gating at least one input to an amplifier. The system and method comprise measuring at least one audio analog signal level received by the amplifier at a first input; determining whether the received at least one audio analog signal level is below a predetermined threshold level; and gating the first input if the received at least one audio analog audio signal level is below the predetermined threshold, such that the received audio analog signal level is ignored in further processing by the amplifier, or enabling the first input if the received at least one audio analog audio signal level is not below the predetermined threshold, such that the received audio analog signal level is further processed by the amplifier.

Abstract: A midspan charging and data communication device is disclosed. A first USB-C port is electrically connectable to a USB-C host device. A second USB-C port is electrically connectable to a USB-C peripheral device. USB-C midspan device processor and circuitry is electrically connected to the first and the second USB-C ports, configures the first USB-C and second USB-C ports to support USB data communication in a particular USB data link mode, and at least one of (i) delivers power as requested by the USB-C host device from the first USB-C port to the USB-C host device over a first data link between the USB-C host device and the first USB-C port or (ii) delivers power as requested by the USB-C peripheral device from the second USB-C port to the USB-C peripheral device over a second data link between the USB-C peripheral device and the USB-C second port.

Abstract: A swivel mount kit includes a first insertable part having a hollow, cylindrical body and a first plate part attached thereto. An upper surface of the first plate part includes a curved track and with a particular shape and dimensions. A second insertable part includes an elongated body and a second plate part attached thereto. A lower surface of the second plate part includes a protrusion that extends away and has a location, shape and dimensions that correspond to those of the locking region and those of the curved track. When the elongated body is inserted into a central opening of the first insertable part and the protrusion is inserted into the locking region, the protrusion fits securely and prevents the second insertable part from moving. When the protrusion is instead inserted into the curved track, the protrusion is movable and the second insertable part is rotatable about an axis.

Abstract: A mounting bracket is disclosed. A first plate is configured to be disposed atop a horizontal mounting surface. A second plate is configured to be securable to an audiovisual device. A third plate is configured to extend from the first plate to at least near the second plate. At least one hinge/clutch assembly has a pivot axis. The first plate and the third plate are each attached at one end to the at least one hinge/clutch assembly such that an angle between the second plate and the third plate is adjustable by rotating the second plate at least part way about the pivot axis of the at least one hinge/clutch assembly.