Abstract: A messaging channel is embedded directly into a media stream. Messages delivered via the embedded messaging channel are extracted at a client media player. In lieu of embedding the message data in the media stream, a coordination index is injected, and the message data is sent separately and merged into the media stream downstream (at the media player) based on the index. In one example embodiment, multiple data streams (each potentially with different content intended for a particular “type” or class of user) are transmitted alongside the video stream in which the coordination index has been injected into a video frame. Based on a user's service level, a particular one of the multiple data streams is released when the sequence number appears in the video frame, and the data in that stream is associated with the media.

Abstract: A light driver includes a converter configured to generate a drive signal for driving an output load based on a rectified input signal; a regulator coupled between the converter and the output load, and configured to generate a regulated signal based on the drive signal; a secondary controller configured to detect a voltage of the regulator, to generate a first feedback signal to dynamically control a DC-level of the drive signal based on the voltage of the regulator, and to generate a second feedback signal for controlling a DC-level of the regulated signal.

Abstract: A light driver includes a pulse generator circuit configured to generate a pulsed signal based on a rectified input line voltage, a dimming detection circuit configured to determine whether phase-cut dimming is present at an input of the light driver based on the pulsed signal and to generate a phase-cut detection signal, and an input selection circuit configured to apply a first voltage or a second voltage to a reference input of a power factor correction (PFC) circuit of the light driver based on the phase-cut detection signal.

Abstract: A method of controlling a light driver includes determining, by a secondary controller of the light driver, an actual voltage drop across a regulator of the light driver; determining, by the secondary controller, a target voltage drop of the regulator; calculating, by the secondary controller, a theoretical input voltage of the regulator based on the target voltage drop and an output voltage of the regulator; determining, by the secondary controller, whether the theoretical input voltage is within a first range; and in response to determining that the theoretical input voltage is within the first range, generating, by the secondary controller, a first feedback signal for transmission to a primary controller of the light driver based on the target voltage drop and the actual voltage drop.

Abstract: A lighting system includes a power supply circuit configured to generate a drive signal for powering a light source based on an input power signal; a temperature sensor configured to measure a light source temperature corresponding to the light source; a current control circuit coupled to the light source and configured to adjust a current of the light source based on the drive signal and a reference signal; a channel controller configured generate the reference signal based on a dimmer setting, and to generate a compensation drive signal based on the light source temperature; and an auxiliary light configured to generate compensation light for compensating a correlated color temperature (CCT) drift in an output light of the light source based on the compensation drive signal.

Abstract: A lighting system includes a power supply circuit configured to generate a drive signal for powering a light source based on an input power signal; a temperature sensor configured to measure a light source temperature corresponding to the light source; a current control circuit coupled to the light source and configured to adjust a current of the light source based on the drive signal and an adjusted reference signal; and a channel controller configured generate a reference signal based on a dimmer setting, and to adjust the reference signal based on the light source temperature to generate the adjusted reference signal.

Abstract: A lighting system includes a converter configured to receive a rectified input voltage and to generate an output voltage based on a gate control signal; a PFC controller including a zero-crossing input, and configured to generate the gate control signal to adjust the output voltage of the converter based on a zero-crossing voltage at the zero-crossing input; a zero-crossing delay circuit coupled between an output of the converter and the zero-crossing input, and configured to slow a rate of change of the zero-crossing voltage based on one or more delay control signals; and a channel controller configured to identify a low-load state of the lighting system, and, in response, to generate the one or more delay control signals.

Abstract: A method of operating a light driver includes operating the light driver in a constant voltage mode, identifying a calibration pattern at a dimmer input of the light driver, generating a maximum voltage at an output of the light driver, measuring a maximum current at the output of the light driver, and operating the light driver in a constant current mode based on the maximum current and a dimmer level at the dimmer input.

Abstract: A multi-channel power supply system including a power supply circuit configured to generate a drive signal for powering a plurality of color channels based on an input power signal, a first current control circuit coupled to a first color channel of the plurality of color channels and configured to adjust a first channel current of the first color channel based on the drive signal and a first reference signal, and a channel controller configured generate the first reference signal based on a color temperature according to a black body curve.

Abstract: A programmable lighting system includes a plurality of color channels configured to generate light of different colors, and a light driver configured to drive the plurality of color channels according to a dimmer setting and a correlated color temperature (CCT) setting, and to maintain a constant maximum lumen output across a range of CCT values based on a dim-stop limit.

Abstract: A programming device includes a plurality of signal lines including a first signal line and a common ground line, and a first programming circuit coupled between the first signal line and the common ground line, and including a first configurable switch configured to receive a first switch configuration, the first programming circuit being configured to receive a first power signal from the first signal line and to supply a first programming signal to the first signal line, the first programming signal having a level corresponding to the first switch configuration.

Abstract: A method of driving a light source by a light driver includes determining a dimming value based on an input from a phase-cut dimmer at the input of the light driver, determining an offset for a dimmer transfer function of the light driver based on the dimming value and a minimum set point of the dimmer transfer function, applying the offset to the dimmer transfer function of the light driver to generate an adjusted dimmer transfer function, and determining a target light output of the light source based on the dimming value and the adjusted dimmer transfer function.

Abstract: A light driver includes a phase-cut detector configured to determine whether phase-cut dimming is present at an input of the light driver and to generate a phase-cut detection signal in response to presence of the phase-cut dimming; and a channel controller coupled to the phase-cut detector and configured to perform receiving a current correlated color temperature (CCT) value for adjusting a CCT of an output light of a light source coupled to the light driver; and in response to receiving the phase-cut detected signal from the phase-cut detector, disregarding the CCT value by maintaining a fixed CCT at the output light and adjusting an intensity of the output light based on a level of phase-cutting at the input of the light driver.

Abstract: A lighting system includes a power supply configured to receive an AC input signal and to generate a rectified signal; a light driver configured to generate a drive signal to drive a light source based on the rectified signal; and a housing configured to encapsulate the power supply and the light driver, the housing including a heatsink base forming a bottom portion of the housing and a case cover forming a top portion of the housing, the heatsink base being configured to channel heat away from the lighting system, the heatsink base including a base plate; and a pedestal structure protruding from the base plate toward the case cover.

Abstract: A lighting system including a power supply configured to receive an AC input signal and to generate a rectified signal; a light driver configured to generate a drive signal based on the rectified signal; a light source configured to emit light based on the drive signal; and a housing configured to encapsulate the power supply and the light driver and the light source, the housing including a heatsink base configured to channel heat away from the lighting system, the heatsink base including a base plate, and a pedestal structure protruding from the base plate toward an interior of the housing.

Abstract: A lighting system includes a power supply configured to receive an AC input signal and to generate a rectified signal; a light driver configured to generate a drive signal to drive a light source based on the rectified signal; and a housing configured to encapsulate the power supply and the light driver, the housing including a heatsink base forming a bottom portion of the housing and a case cover forming a top portion of the housing, the heatsink base being configured to channel heat away from the lighting system, the heatsink base including a base plate; a base post configured to couple the base plate and the case cover; and a base sidewall extending from the base plate and configured to mate with cover sidewalls of the case cover.

Abstract: A multi-channel power supply system including a power supply circuit configured to generate a drive signal for powering a plurality of color channels based on an input power signal, a first current control circuit coupled to a first color channel of the plurality of color channels and configured to adjust a first channel current of the first color channel based on the drive signal and a first reference signal, and a channel controller configured generate the first reference signal based on a color temperature according to a black body curve.

Abstract: A programming device includes a plurality of signal lines including a first signal line and a common ground line, and a first programming circuit coupled between the first signal line and the common ground line, and including a first configurable switch configured to receive a first switch configuration, the first programming circuit being configured to receive a first power signal from the first signal line and to supply a first programming signal to the first signal line, the first programming signal having a level corresponding to the first switch configuration.

Abstract: A programmable lighting system includes a plurality of color channels configured to generate light of different colors, and a light driver configured to drive the plurality of color channels according to a dimmer setting and a correlated color temperature (CCT) setting, and to maintain a constant maximum lumen output across a range of CCT values based on a dim-stop limit.

Abstract: An integrated multi-layered lighting system includes a first board having a first component area and a first light area, a second board coupled to and offset from the first board, the second board having a first opening overlapping the first light area of the first board in a plan view, and a second component area overlapping the first component area of the first board in a plan view, a plurality of light emitting diodes (LEDs) coupled to the first board and positioned in the first light area corresponding to the first opening of the second board, and a light driver configured to drive the plurality of LEDs and including a plurality of first components coupled to the first board and positioned in the first component area and a plurality of second components coupled to the second board and positioned in the second component area.