Abstract:
Devices, systems, software, and methods for control of light emitting diodes (LEDs) via an LED driver circuit that receives a dimmed AC input signal from a dimmer and generates an output signal to power and dim an LED element. The LED driver circuit comprises a dimmed input sense circuit, a microcontroller, and a power supply circuit. The power supply circuit generates a power supply from the dimmed AC input signal for powering the LED driver circuit. The dimmed input sense circuit detects an incoming duty cycle (Din) of the dimmed AC input signal. The microcontroller stores one or more dimming level parameters, receives the detected incoming duty cycle (Din) from the dimmed input sense circuit, and generates an output duty cycle (Dout) based on the detected incoming duty cycle (Din) and the one or more dimming level parameters. The LED driver circuit generates the output signal using the generated output duty cycle (Dout) for powering the LED element at a generated dimming level.
Abstract:
When switching sources, resolutions or refresh rates in a video distribution network, switching times are reduced by maintaining video lock and security authentication between a video switcher and a video sink. The scaler maintains video lock and security authentication by continuing to generate video timing data during switching events. The scaler also facilitates an aesthetically pleasing transition by generating image content data prior to and after the switching event.
Abstract:
Presented is a video distribution system that includes a transmitter that receives an uncompressed source video signal and includes a compressor for compressing the uncompressed source video signal into a compressed video signal having a bandwidth lower than the bandwidth of the uncompressed source video signal, a reformatter configured for reformatting the compressed video signal to simulate an uncompressed video signal having a bandwidth lower than the bandwidth of the uncompressed video signal. The video distribution system also includes a receiver that receives the compressed video signal that simulates an uncompressed video signal and includes a decompressor configured for decompressing the compressed video signal that simulates an uncompressed video signal into a decompressed video signal, and output port configured for transmitting the decompressed video signal to a display.
Abstract:
A device and method for simultaneously capturing a content video stream comprising video of content presented during a live presentation, a content audio stream comprising audio accompanying the presented content, a presenter video stream comprising video of the presenter recorded via a video camera, and a presenter audio stream comprising audio of the presenter recorded via a microphone. The content audio stream and the presenter audio stream are mixed into a combined content and presenter audio stream, the content video stream is combined with the presenter video stream into a combined content and presenter video stream, and the combined content and presenter audio stream and the combined content and presenter video stream are encoded into a combined AV data stream. The combined AV data stream is distributed via one or more output channels, for example to a digital sink via an HDMI connection.
Abstract:
A touch screen device includes an electric power receptacle configured for being spill resistant. The electric power receptacle provides a fluidly isolated environment for each contact thereby allowing the electric power receptacle to pass a dielectric withstand test.
Abstract:
A system and method for modeling a lighting control system for an enterprise is provided comprising an application (App) on a mobile device, or laptop, or personal computer, or other like device, that can communicate electronically with a webpage accessible by the internet or local area network or wide area network, wherein the webpage represents a program, and the program provides for the receiving, storing, and processing of lighting control system specified information on a space-by-space basis, and further wherein a unique part number for the space-based lighting control system can be generated for the particular space, such that delivery of individual, but substantially integrated space-based lighting control systems, can be delivered to the spaces for installation in the enterprise location.
Abstract:
A system includes at least one processor, a memory, at least one data storage device, at least one communication interface, and at least one program of instructions stored in the memory and executable in the processor. The program of instructions accepts information defining a presentation type of meeting, the presentation type of meeting being associated with preset resources including a presentation capture device, displays at least one presentation preset parameter based on the presentation type of meeting, receives presentation preset information from the at least one displayed presentation preset parameter, the presentation preset information including a start time, an end time, and shared documentation, automatically determines a room by communicating with a scheduling server the availability of the preset resources based on the received presentation preset information, notify a conference initiator of the room, and sends at least one command to control at least one of the associated preset resources in response to the start time and the end time. The at least one presentation preset parameter includes a recording profile, the presentation preset information includes a preconfigured recording profile, the preconfigured recording profile includes at least one AV workflow function, the at least one AV workflow function includes an encoding profile, and the encoding profile includes an audio CODEC preset parameter, an audio channels preset parameter, a sampling frequency preset parameter and an audio bitrate preset parameter.
Abstract:
A cable management hub for use in providing an interface between one or more pieces of audio-visual presentation equipment and a laptop. The cable management hub comprises a first portion that includes one or more cables that mate with respective cables from the laptop. The cable management hub further includes one or more buttons, each of which is configured to generate an electrical signal when pressed by a user that indicates a desire by the user to transfer control of the audio-visual presentation equipment from a previous user, if one exists, to the user that pressed the button. If no one had control, then the user that presses the button would gain control of the audio-visual equipment. The cable management hub further includes one or more illuminated indicators configured to illuminate in a manner indicative of a received status condition signal.