Abstract: A method and system for opening garage doors is disclosed. The invention being comprised of several parts: software for mobile devices, a vehicle-dedicated, Bluetooth™ enabled beacon and a wireless door controller unit. The aforementioned software transmitting a wireless open command to said garage door controller once said beacon is within a preset range determined by said mobile device's Global Positioning System (GPS). For example, in one embodiment users place a multitude of beacons in different vehicles. As one vehicle approaches a garage, a mobile device will decipher its location and interact with the door controller. Upon entering a preset boundary, the garage door associated with said vehicle will open. An object of the invention is to enhance garage door automation.

Abstract: A method and system for opening garage doors is disclosed. The invention being comprised of several parts: software for mobile devices, a vehicle-dedicated, Bluetooth™ enabled beacon and a wireless door controller unit. The aforementioned software transmitting a wireless open command to said garage door controller once said beacon is within a preset range determined by said mobile device's Global Positioning System (GPS). For example, in one embodiment users place a multitude of beacons in different vehicles. As one vehicle approaches a garage, a mobile device will decipher its location and interact with the door controller. Upon entering a preset boundary, the garage door associated with said vehicle will open. An object of the invention is to enhance garage door automation.

Abstract: LEDs that provide street illumination are used to create emergency signals. This facilitates simple retrofitting of existing streetlighting infrastructure. In one embodiment, a streetlight comprises an LED set that itself comprises or consists of a plurality of LEDs collectively producing a white light output. The streetlight also includes a receiver for receiving a signal of an alarm condition, and a controller for (i) disabling the LED set during a daylight period, (ii) maintaining the normal operating mode during a lighting period distinct from the daylight period, and (iii) in response to the alarm condition detected by the receiver, de-activating at least one of the LEDs to produce a non-white (e.g., red or amber) output signaling the alarm condition.

Abstract: A voltage level supplied to power a plurality of LED light fixtures is dynamically adjusted to control the headroom of the voltage level. The current drawn by at least one of the plurality of LED light fixtures is monitored, and the voltage is increased from zero until the monitored current reaches its maximum.

Abstract: Power consumed by an LED driver may be reduced by drawing, from an electronic transformer or dimmer, an input current that is constant over a plurality of input voltages. Power derived from the constant input current is provided to the LED driver.

Abstract: A thermal-foldback system detects an over-temperature condition in an LED lamp. In response to the over-temperature condition, the thermal-foldback system chops a portion of the input power waveform drawn by the LED lamp.

Abstract: A brightness controller determines a lowest dimmer setpoint and an average power to a light source at the lowest dimmer setpoint. An average power supplied to the light source is set based on a setting of the dimmer relative to the average power at the lowest dimmer setpoint.

Abstract: A permanent adapter for incandescent lighting fixtures can removably receive LEDs but cannot itself be removed from the fixture.

Abstract: Total internal reflection (TIR) optics have an engagement member that mates with a complementary feature on the LED holder. The engagement member does not interfere with light propagation through or emission from the optical component, and does not enlarge the footprint area occupied by the optical component.

Abstract: Operation of an LED as a light source may be temporarily interrupted to facilitate measurement of the light from other LEDs, as well as control of the operation of the LED(s) based thereon.

Abstract: Operation of an LED as a light source may be temporarily interrupted to facilitate measurement of the ambient light level, as well as control of the operation of the LED(s) based thereon.

Abstract: Operation of an LED as a light source may be temporarily interrupted to facilitate receipt and/or transmission of optical communications, as well as control of the operation of the LED based thereon.

Abstract: Power consumed by an LED driver may be reduced by drawing, from an electronic transformer or dimmer, an input current that is constant over a plurality of input voltages. Power derived from the constant input current is provided to the LED driver.

Abstract: A thermal-foldback system detects an over-temperature condition in an LED lamp. In response to the over-temperature condition, the thermal-foldback system chops a portion of the input power waveform drawn by the LED lamp.

Abstract: A voltage level supplied to power a plurality of LED light fixtures is dynamically adjusted to control the headroom of the voltage level. The current drawn by at least one of the plurality of LED light fixtures is monitored, and the voltage is increased from zero until the monitored current reaches its maximum.

Abstract: In accordance with certain embodiments, a power signal for driving an LED lighting system is analyzed on a timeslice basis, and the signal is adjusted (e.g., on a timeslice basis) to compensate for deviations therein.

Abstract: A brightness controller determines a dimmer setting and adjusts brightness of a light source according to the dimmer setting.

Abstract: A permanent adapter for incandescent lighting fixtures can removably receive LEDs but cannot itself be removed from the fixture.

Abstract: In accordance with certain embodiments, a method of monitoring traffic includes capturing a plurality of time-separated images of a moving vehicle, calculating a velocity of the vehicle based on at least two of the images, and obtaining vehicle-identifying information from at least one of the images or transmitting a notification to a central location if the velocity is greater than a threshold velocity.

Abstract: LEDs that provide street illumination are used to create emergency signals. This facilitates simple retrofitting of existing streetlighting infrastructure. In one embodiment, a streetlight comprises an LED set that itself comprises or consists of a plurality of LEDs collectively producing a white light output. The streetlight also includes a receiver for receiving a signal of an alarm condition, and a controller for (i) disabling the LED set during a daylight period, (ii) maintaining the normal operating mode during a lighting period distinct from the daylight period, and (iii) in response to the alarm condition detected by the receiver, de-activating at least one of the LEDs to produce a non-white (e.g.