| Patent Number |
Title Of Patent |
Date Issued |
| 7588067 |
Electrically controllable window treatment system to control sun glare in a space |
September 15, 2009 |
| A system for reducing sun glare through an opening into a space, the system comprising an electrically controllable window treatment operable to alter the amount of daylight entering the space through the opening; a first sensor mounted within the space and characterized by a sensor gain |
| 7586268 |
Apparatus and method for controlling the filament voltage in an electronic dimming ballast |
September 8, 2009 |
| An electronic dimming ballast comprises a filament turn-off circuit for controlling the magnitudes of filament voltages supplied to the filaments of a gas discharge lamp. Each of a plurality of filament windings is directly coupled to one of the filaments and is operable to supply a |
| 7566137 |
System to control daylight and electric light in a space |
July 28, 2009 |
| An illumination maintenance system for maintaining a desired illumination profile in a space throughout at least a portion of a day, the space being illuminable by both daylight and electric light, the system comprising a sensor for sensing an illumination level in at least a portion |
| 7432661 |
Electronic ballast having a flyback cat-ear power supply |
October 7, 2008 |
| An electronic ballast for driving a gas discharge lamp includes a rectifier to convert an AC mains input voltage to a rectified voltage, a valley-fill circuit for producing a DC bus voltage, an inverter for converting the DC bus voltage to a high-frequency AC voltage for driving the |
| 7391297 |
Handheld programmer for lighting control system |
June 24, 2008 |
| The invention regards a system and method for using a handheld programming device to configure a lighting control system wirelessly. In one embodiment, at least one device configured with a processing section is installed in the lighting control system. A communications receiver that |
| 7369060 |
Distributed intelligence ballast system and extended lighting control protocol |
May 6, 2008 |
| A ballast for use in a multi-ballast lighting system wherein the ballasts are coupled together by a digital communication network. The ballast comprises a power circuit portion for providing an electrical current to power a lamp. The ballast further includes a sensor input circuit for |
| 7208887 |
Ballast having multiple circuit failure protection and method for ballast circuit protection |
April 24, 2007 |
| A ballast for a gas discharge lamp comprising a first circuit portion for providing power to a lighting load and a second circuit portion for processing data exchanged with a communication link, the first circuit portion receiving power from an AC main supply for conversion to a form |
| 7111952 |
System to control daylight and artificial illumination and sun glare in a space |
September 26, 2006 |
| An illumination maintenance system for maintaining a desired illumination profile in a space throughout at least a portion of a day where the illumination sources include daylight and artificial light, the system comprising a first sensor for sensing an illumination level in at least a |
