Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Fery
Antoine Fery, Munich DE
| Patent application number | Description | Published |
|---|---|---|
| 20090021174 | Controlling a Lamp Ballast - A method and apparatus for providing electrical current to a lamp, detecting a power supply voltage outage, detecting a return of the power supply voltage, determining how long the power supply voltage outage lasted, and preheating the lamp responsive to determining that the power supply voltage outage lasted greater than a threshold amount of time. | 01-22-2009 |
| 20090256487 | Method for detection of non-zero-voltage switching operation of a ballast of fluorescent lamps, and ballast - A method detects a non-zero-voltage switching operation of a lamp ballast, the lamp ballast including a half-bridge circuit with a first and a second semiconductor switching element, a resonant circuit connected to the half-bridge circuit, and a snubber capacitance connected in parallel with one of the semiconductor switching elements. The method includes obtaining a voltage measurement signal representative of a voltage at an output of the half-bridge circuit. The method also includes providing a comparison signal representative of a comparison of the voltage measurement signal with a reference value. The method further includes evaluating the comparison signal in each case before the first semiconductor element is switched on and in each case before the second semiconductor element is switched on, and detecting one of a first and second non-zero-switching operations based on these evaluations. | 10-15-2009 |
| 20120062137 | Method for Detection of Non-Zero-Voltage Switching Operation of a Ballast of Fluorescent Lamps, and Ballast - A method for use in a lamp ballast includes obtaining a measurement signal representative of a voltage at an output of a half-bridge circuit. The half-bridge circuit includes first and second semiconductor switching elements, a resonant circuit connected to the half-bridge circuit, and a snubber capacitance connected in parallel with one of the semiconductor switching elements. The method also includes providing a comparison sinal by comparing heeasurem ment signal with a reference value. The method further includes detecting one of a first type of non-zero-voltage switching operation and a second type of non-zero-voltage switching operation based on evaluations of the comparison signal, wherein the evaluations of the comparison signal occurs in each case before the first semiconductor element is switched on and in each case before the second semiconductor element is switched on. | 03-15-2012 |
Christophe Fery, Niedererschach DE
| Patent application number | Description | Published |
|---|---|---|
| 20090302741 | Organic Light Emitting Diode Having a Resonant Optical Cavity and an Extractor Serving as a Spatial Light Filter - According to the invention, the extractor is a reflection concentrator. The entry section of the extractor has a larger area than its exit section. The reflecting side walls of the extractor have a suitable shape so that it makes an angle called the cut-off angle θ | 12-10-2009 |
Christophe Fery, Schwieberdingen DE
| Patent application number | Description | Published |
|---|---|---|
| 20120068138 | OPTICAL STORAGE MEDIUM COMPRISING TWO NONLINEAR LAYERS - The optical storage medium comprises a substrate layer, a data layer arranged on the substrate layer, a first nonlinear layer with a first super-resolution structure arranged above the data layer, and a second nonlinear layer with a second super-resolution structure arranged above the first nonlinear layer, the first nonlinear layer comprising a material having an increased reflectivity when irradiated with a laser beam and the second nonlinear layer comprising a material showing a transparency when irradiated with a laser beam. The first nonlinear layer comprises in particular a semiconductor material of one of the III-V semiconductor family having a low band-gap. And the second nonlinear layer comprises in particular a phase change material, for example SbTe or AIST. | 03-22-2012 |
Mark Fery, Spokane, WA US
| Patent application number | Description | Published |
|---|---|---|
| 20090294115 | Thermal Interconnect System and Production Thereof - A thermal transfer material is described herein that includes: a heat spreader component, wherein the heat spreader component comprises a top surface, a bottom surface and at least one heat spreader material, and at least one solder material, wherein the solder material is directly deposited onto the bottom surface of the heat spreader component. Methods of forming layered thermal interface materials and thermal transfer materials include: a) providing a heat spreader component, wherein the heat spreader component comprises a top surface, a bottom surface and at least one heat spreader material; b) providing at least one solder material, wherein the solder material is directly deposited onto the bottom surface of the heat spreader component; and c) depositing the at least one solder material onto the bottom surface of the heat spreader component. | 12-03-2009 |