Featured patents

Light Emitting Element Drive Device
US 08853969 B1, Oct. 7, 2014, Regulator responsive to plural conditions, Chih-Yuan Chen et al. / Anpec Electronics Corporation (Hsinchu, TW)
A light-emitting element drive device for driving a plurality of light-emitting…

LED Drive Circuit
US 08866413 B2, Oct. 21, 2014, Automatic regulation, Dan Cao et al. / Shenzhen China Star Optoelectronics Technology Co., Ltd. (Shenzhen, CN)
An LED drive circuit, comprising a transformer, an MOS tube, a power regulating…

Pulse Mode Capability for Operation of an RF/VHF Impedance Matching Network With 4 Quadrant, v RMS /I RMS Responding Detector Circuitry
US 08779662 B2, July 15, 2014, Plasma generating, Gerald E. Boston / COMET Technologies USA, Inc (San Jose, US)
A method for tuning an RF matching network during pulsed mode operation,…

Commissioning Coded Light Sources
US 08729808 B2, May 20, 2014, Load device irradiating the radiant energy responsive device, Tim Corneel Wilhelmus Schenk et al. / Koninklijke Philips N.V. (Eindhoven, NL)
A remote controller for commissioning a light source in a coded lighting system…

User Interface With Circular Light Guided Ring With Adaptive Appearance Depending on Function
US 08698405 B2, April 15, 2014, With Radiant Energy Sensitive Control Means, Ramon E. F. Van De Ven et al. / Koninklijke Philips N.V. (Eindhoven, NL)
A control device for controlling a plurality of properties of light emitted…

LED Lamp for Producing Biologically-Corrected Light
US 08643276 B2, Feb. 4, 2014, Combined Load Device or Load Device Temperature Modifying Means and Electrical Circuit Device Structure, Robert R. Soler et al. / Biological Illumination, LLC (Satellite Beach, US)
A biologically-corrected light-emitting diode (LED) lamp, comprising:…

Method and System for Improving Start-Up Time of a Light Emitting Diode (LED) Driver at Reduced Input Voltage
US 08629631 B1, Jan. 14, 2014, Automatic regulation, Scott Edward Rhodes et al. / Cooper Technologies Company (Houston, US)
A switch mode power supply (SMPS) having improved start-up time at reduced input…

Apparatus and Methods for Interactive Illumination
US 08593073 B2, Nov. 26, 2013, Current Voltage Regulation, Joseph Paradiso et al. / Massachusetts Institute of Technology (Cambridge, US)
A lighting control system comprising, in combination:…

Electrical Circuit for Driving LEDs in Dissimilar Color String Lengths
US 08531128 B2, Sept. 10, 2013, Current Voltage Regulation, Herman Ferrier et al. / Lumenetix, Inc. (Scotts Valley, US)
A light emitting diode driver for driving a plurality of color strings each…

LED Driving Circuit and Protecting Circuit Thereof
US 08531112 B2, Sept. 10, 2013, With Automatic Shunt Cutout, Chen-Hsung Wang / Green Solution Technology Co., Ltd (New Taipei, TW)
A light emitting diode (LED) driving circuit, comprising:…

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