Abstract: A feedback control circuit is described herein, comprising: an operational amplifier (op-amp) integrated circuit, wherein a first output of the op-amp provides a feedback error control signal; at least two transistors provided in a feedback path between the first output of the op-amp and an inverting input to the op-amp; and a plurality of discrete electrical components in the feedback path, such that in the response to either an increase or decrease of an inverting input voltage at the inverting input that exceeds a predetermined level, will speed up substantially. The feedback control circuit provides the feedback error control signal.

Abstract: Provided herein is a lighting load control assembly, comprising: a circuit adapted to source a first lighting load controlling current to a lighting load and sink a second lighting load controlling current from the lighting load through a single common circuit element.

Abstract: A keypad capable of being configured with multiple button configurations with buttons of various heights is configured to recognize the button configuration through actuations of the buttons. The keypad is placed in a configuration mode by inputting an unresolvable condition to the keypad. Once in the configuration mode, the buttons are individually actuated in a predefined order to configure the size and function of each button.

Abstract: An ambient light color sensing device adapted to determine color of ambient light and method for calibrating thereof. The ambient light color sensing device comprises a memory, a processor, and a light color sensor having a plurality of channels that detect light at different wavelengths to produce sensor readings. Wherein the processor receives sensor readings from the light color sensor, determines an interpolated spectral power distribution from the received sensor readings, converts the interpolated spectral power distribution to at least one measured light color value that quantifies color of light, and determines at least one calibrated light color value by correlating the at least one measured light color value through a calibration matrix.

Abstract: An apparatus, system, and method for an automatic dimming and color adjusting backlight LEDs of wall mounted control device buttons. The control device comprises a light sensor that detects light levels in a room where the control device is installed. The control device comprises a controller that operates the backlight LEDs according to day color setting when it receive a light level reading from the light sensor that is above a day/night threshold and according to a night color setting when it receives a light level reading from the light sensor that is below the day/night threshold. In addition, the controller dims the backlight LEDs based on the detected light level readings according an indication mode dimming curve when the backlight LEDs are in an indication mode and according to a backlight mode dimming curve when the backlight LEDs are in a backlight mode.

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 shade assembly comprising a roller tube, a shade material connected at its one end to the roller tube, and a motor disposed inside the roller tube and adapted to rotate the roller tube to roll and unroll the shade material onto and from the roller tube while the motor remains stationary. The shade assembly further comprises a motor head disposed at a terminal end of the roller tube, the motor head comprises a substantially disc shaped motor head locking member having at least one locking tab extending from a side surface thereof and at least one contact pin extending from a terminal end thereof. The shade assembly further comprises a first installation bracket adapted to be secured to an architectural structure and comprising a substantially disc shaped installation bracket locking member comprising at least one locking arm and at least one contact pad.

Abstract: Shade assembly comprising a roller tube, shade material connected to the roller tube, and a motor disposed inside the roller tube and adapted to rotate the roller tube to roll and unroll the shade material. The shade assembly further comprise a motor head disposed at a terminal end of the roller tube and comprises a contact pin and a first locking member, and an installation bracket adapted to be secured to an architectural structure and comprises a contact pad and a second locking member, wherein the motor head is stationary with respect to the installation bracket when the roller tube rotates.

Abstract: An audio amplifier system is described herein, comprising: an amplifier adapted to amplify an audio signal and comprising an output enable/disable input, the amplifier further adapted to receive an output enable signal at the output enable/disable input that enables/disables an output of the amplifier; a Zobel network connected to the output of the audio amplifier and comprising a Zobel capacitor and a Zobel resistor arranged such that they form a high pass frequency filter function and wherein the Zobel network is adapted to be substantially resistive when a frequency of an audio signal output from the audio amplifier is within a first frequency range; a mirroring resistor connected in parallel to the Zobel resistor and adapted to mirror a power that is dissipated in the Zobel resistor, and wherein a printed circuit board upon which the mirroring resistor is located is adapted to conduct heat generated by the mirroring resistor; a negative temperature coefficient (NTC) resistor located in close proximity to

Abstract: Apparatus cools electronic circuitry. An enclosure surrounds the circuitry. Air intake holes are only in a portion of a first panel that faces a first direction. Air exhaust holes are only in a portion of a second panel that faces a second direction opposite the first. Air plenum piece is disposed within the enclosure, and a substantially planar portion extends from a first panel inner wall and ends a distance from a second panel inner wall. At least one tab extends from the substantially planar portion to an upper panel inner wall. The air plenum piece divides an enclosure interior into a first volume, enclosed by the first panel inner wall, substantially planar portion, at least one tab, and upper panel inner wall, into which the air intake holes open and a second volume into which the air exhaust holes open. The second volume is a remaining interior volume.

Abstract: According to a first aspect of the embodiments, a microphone mixer is provided comprising: an input adapted to receive differential microphone (mic) output signals; a gain-trim circuit adapted to receive the differential mic output signals, and which includes a substantially fully differential amplifier adapted to amplify the received differential mic output signals through use of a gain-trim output adjustment device that provides a variable gain amount ranging from a first gain-trim gain value to a second gain-trim gain value, to produce differential gain-trim circuit output signals; a fader circuit adapted to receive the differential gain-trim circuit output signals, and which includes a differential amplifier adapted to attenuate the received differential gain-trim circuit output signals through use of a fader output adjustment device that provides a variable gain amount ranging from a first fader gain value to a second fader value; and a common adjustment apparatus that mechanically ties the gain-trim out

Abstract: A cable retractor includes a housing. A spool is disposed within the housing and is mechanically coupled to the housing and rotatable about an axis. A spring mechanism is operatively attached to the spool and is configured to urge the spool to rotate in a first rotational direction about the axis. An electricity operated rotation regulator is operatively attached to the spool and is configured to, when activated, prevent the spool from rotating in the first rotational direction.