Patent application number | Description | Published |
20080203823 | Arrangement for Converting Mechanical Energy Into Electrical Energy - The invention relates to an arrangement for converting mechanical energy into electrical energy comprising a piezo-electric auxiliary generator producing an auxiliary voltage and a main generator which is coupled mechanically with the auxiliary generator and producing the electrical energy. | 08-28-2008 |
20080203939 | Method and Arrangement for Monitoring a Gas Discharge Lamp - The invention relates to a method and an arrangement ( | 08-28-2008 |
20080246926 | Method For Operating a High-Intensity Discharge Lamp, Lamp Driver and Projection System - There is described a method for operating a high-intensity discharge lamp ( | 10-09-2008 |
20080252351 | Generating a Pulse Signal with a Modulated Duty Cycle - Generating an output pulse signal (Y), which has an output signal period (T | 10-16-2008 |
20080258638 | Method and Circuit Arrangement for Operating a High-Pressure Gas Discharge Lamp - A description is given of a method and a circuit arrangement for operating a high-pressure gas discharge lamp with a lamp current superposed with first current pulses, in particular in a system for the time-sequential production of (primary) colors and possibly white segments, from which an image to be displayed is synthesized, in which, in order to change or correct color and/or brightness properties of the image, the first current pulses are adjusted with regard to their amplitude and/or temporal length and/or temporal position relative to the production of the colors and/or white segments. A description is also given of a projection system comprising such a circuit arrangement. | 10-23-2008 |
20080259020 | Scanning Backlight For a Matrix Display - A scanning backlight unit (BU) for a matrix display comprises a plurality of light sources (L | 10-23-2008 |
20080273179 | Projection System and Method for Operating a Projection System - A method for operating a projection system ( | 11-06-2008 |
20080309249 | Gas Discharge Lamp Ignition - Ignition of a gas discharge lamp | 12-18-2008 |
20090021456 | METHOD OF COLOUR IMAGE PROJECTION USING SPATIAL LIGHT MODULATION AND LIGHT SOURCE MODULATION - The present invention relates to a method of operating a projection system comprising several solid state light sources ( | 01-22-2009 |
20090051300 | METHOD AND DRIVING UNIT FOR DRIVING A GAS DISCHARGE LAMP - This invention describes a method for driving a gas discharge lamp ( | 02-26-2009 |
20090147223 | PROJECTION SYSTEM AND METHOD FOR OPERATING A DISCHARGE LAMP - A projection system and a method for operating a discharge lamp are described. The protection system comprises a discharge lamp | 06-11-2009 |
20090167211 | METHOD OF DRIVING A DISCHARGE LAMP, AND DRIVING UNIT - The invention describes a method of driving a discharge lamp ( | 07-02-2009 |
20090261756 | METHOD OF SHUTTING DOWN A HIGH PRESSURE DISCHARGE LAMP AND DRIVING UNIT FOR DRIVING A HIGH PRESSURE DISCHARGE LAMP - The invention describes a method of shutting down a high pressure discharge lamp ( | 10-22-2009 |
20100033516 | METHOD OF ADJUSTING THE LIGHT OUTPUT OF A PROJECTOR SYSTEM, AND SYSTEM FOR ADJUSTING THE LIGHT OUTPUT OF A PROJECTOR SYSTEM - The invention describes a method of adjusting the light output of a projector system comprising a light source ( | 02-11-2010 |
20100091807 | DRIVER CIRCUIT FOR LOADS SUCH AS LED, OLED OR LASER DIODES - A driver circuit | 04-15-2010 |
20100134765 | METHOD OF DRIVING A DISCHARGE LAMP IN A PROJECTION SYSTEM, AND DRIVING UNIT - The invention describes a method of driving a discharge lamp ( | 06-03-2010 |
20100141906 | METHOD FOR DRIVING A HIGH-PRESSURE GAS DISCHARGE LAMP OF A PROJECTOR SYSTEM - A method for driving a high-pressure gas discharge lamp of a projector system, which is suitable to produce and to supply to a light valve device during a projection interval ( | 06-10-2010 |
20100164383 | METHOD OF DRIVING A DISCHARGE LAMP, DRIVING ARRANGEMENT, AN PROJECTOR SYSTEM - The invention describes a method of driving a discharge lamp ( | 07-01-2010 |
20100171771 | METHOD AND APPARATUS FOR DRIVING LIGHT EMITTING ELEMENTS FOR PROJECTION OF IMAGES - A light source sequentially emits lights generated by at least three light emitting elements each emitting a different primary color to generate an image. Each light emitting element has a duty cycle in a lighting period, which may be an image frame period. A sequence scheme is provided for alternatingly driving different ones of the light emitting elements. The light emitting elements are driven in accordance with the sequence scheme at least two times in the lighting period, while maintaining the duty cycle for each light emitting element. In the sequence scheme, at least one light emitting element having the highest temperature sensitivity of all light emitting elements is driven more times than another one. | 07-08-2010 |
20100188007 | SUPPLYING A SIGNAL TO A LIGHT SOURCE - Supply circuits for supplying voltage and current signals to light sources ( | 07-29-2010 |
20100253302 | POWER SUPPY CIRCUIT - The invention relates to a power supply circuit ( | 10-07-2010 |
20100264848 | METHOD OF SHUTTING DOWN A HIGH PRESSURE DISCHARGE LAMP AND DRIVING UNIT FOR DRIVING A HIGH PRESSURE DISCHARGE LAMP - The invention describes a method of shutting down a high pressure discharge lamp ( | 10-21-2010 |
20100325456 | CONTROLLING THE POWER CONSUMPTION OF A RECEIVING UNIT - An average power consumption of receiving units ( | 12-23-2010 |
20110148317 | METHOD FOR DRIVING A HIGH-PRESSURE GAS DISCHARGE LAMP OF A PROJECTOR SYSTEM - A method for driving a high-pressure gas discharge lamp of a projector system, which is suitable to produce and to supply to a light valve device during a projection interval ( | 06-23-2011 |
20110309762 | CONVERTER FOR SUPPLYING PULSED POWER TO LIGHT SOURCE - Converters ( | 12-22-2011 |
20120074791 | SUPPLY CIRCUIT FOR SUPPLYING A SWITCH CIRCUIT - To improve energy efficiencies, supply circuits ( | 03-29-2012 |
20120086702 | METHOD OF COLOUR IMAGE PROJECTION USING SPATIAL LIGHT MODULATION AND LIGHT SOURCE MODULATION - The present invention relates to a method of operating a projection system comprising several solid state light sources ( | 04-12-2012 |
20120091906 | AC DRIVEN LIGHT-EMITTING DIODES - Disclosed is a lighting device including a circuit including at least two parallel-connected light-emitting diodes of opposite pole in a first parallel branch and comprising at least two parallel-connected light-emitting diodes of opposite pole in a second parallel branch, and also including a capacitor and a coil. At least one of the diodes emits red light, blue light, and/or white light. | 04-19-2012 |
20120126714 | BLEEDER CIRCUIT - Bleeder circuits ( | 05-24-2012 |
20120146544 | LIGHT EMITTING DIODE CIRCUIT - In light emitting diode circuits ( | 06-14-2012 |
20130043910 | DRIVER CIRCUIT FOR DRIVING A LOAD CIRCUIT - Driver circuits ( | 02-21-2013 |
20130063033 | DRIVING MODES FOR LIGHT CIRCUITS - Driver circuits ( | 03-14-2013 |
20130093309 | LED LAMP - An LED lamp ( | 04-18-2013 |
20130181633 | LIGHTING DEVICE EMPLOYING AC-DRIVEN LIGHT-EMITTING DIODES - Disclosed is a lighting device including a circuit including at least two parallel-connected light-emitting diodes of opposite pole in a first parallel branch and comprising at least two parallel-connected light-emitting diodes of opposite pole in a second parallel branch, and also including a capacitor and a coil. At least one of the diodes emits red light, blue light, and/or white light. | 07-18-2013 |
20130221867 | LED RETROFIT LAMP - The present invention relates to an LED lamp ( | 08-29-2013 |
20130307428 | DRIVER DEVICE AND DRIVING METHOD FOR DRIVING A LOAD, IN PARTICULAR AN LED UNIT - The present invention relates to a driver device ( | 11-21-2013 |
20140049301 | SEMICONDUCTOR SWITCH WITH RELIABLE BLACKOUT BEHAVIOR AND LOW CONTROL POWER - The present invention relates to a bidirectional semiconductor switch (M1, M2) with extremely low control power consumption and a bootstrap circuit which allows reliable start of operation of the switch and the hosting device after unlimited duration of mains interruptions. Intelligent control options are provided by operating from a small energy storage and no extra means are required to recover from a depleted energy storage condition. The absence of audible noise and mechanical wear also enables more frequent recharging cycles and allows smaller and thus cheaper energy storage components. | 02-20-2014 |
20150036708 | LIGHT SOURCE, USE OF A DRIVER AND METHOD FOR DRIVING - The invention relates to solid state light source, a use of a driver circuit for driving a light emitting element ( | 02-05-2015 |
20150042230 | Circuit arrangement for controlling at least one load - The invention relates to a circuit arrangement ( | 02-12-2015 |