Oliveira, DE
Paulo Oliveira, Neubiberg DE
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20090251218 | Variable Gain Amplifier - A variable gain amplifier for amplifying an amplifier input signal includes a current steering transconductance stage and an impedance transformation network configured to match the current steering transconductance stage to the amplifier output. The impedance transformation network includes a tapped inductor, wherein a first inductive portion of the tapped inductor is magnetically coupled with a second inductive portion of the tapped inductor. The current steering transconductance stage is configured to receive the amplifier input signal and to controllably provide a current signal to a node at the first end of the inductor or to a node electrically circuited between the amplifier output and the first end of the inductor, or to a first tap of the tapped inductor, or to a second tap of the tapped inductor. | 10-08-2009 |
20140015614 | System and Method for a Low Noise Amplifier - In accordance with an embodiment, a low noise amplifier (LNA) includes a transistor, and a transformer having a first winding coupled between a LNA input terminal and a control node of the transistor, and a second winding magnetically coupled to the first winding coupled between a reference node of the transistor and a LNA reference terminal. An output of the LNA is coupled to an output node of the transistor. | 01-16-2014 |
Peter Oliveira, Saarbruecken DE
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20090091833 | Method For Producing Defect-Free Light Guiding Elements Of Great Widths, Production Device And Diffractive Light Guiding Element - A process for producing a diffractive light guiding element by a continuous, single-stage reel-to-reel method, an apparatus suitable for carrying out the process and a light guiding element obtainable by the process. | 04-09-2009 |
Peter Oliveira, Saabruecken DE
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20090035703 | Regeneratable, structured plate comprising oxidation catalysts - A regeneratable plate having a structured surface comprising hydrophilic and hydrophobic regions. The plate comprises a substrate, a first layer comprising a hydrophilic oxidation catalyst arranged on the substrate, and a second layer which is hydrophobic and is imagewise arranged on the first layer to thereby afford the structured surface comprising hydrophobic regions and hydrophilic regions. A process for making the plate by imagewise exposure is also described. | 02-05-2009 |
Peter W. Oliveira, Saarbruecken DE
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20100155974 | METHOD AND DEVICE FOR PRODUCING STRUCTURED OPTICAL MATERIALS - The invention relates to a method for producing structured optical materials. It also relates to a device for producing structured optical materials, and to use of the method. | 06-24-2010 |
20100184592 | PARTICLES OR COATING FOR SPLITTING WATER - The aim of the invention is to provide particles or coatings for splitting water, which are largely protected from corrosive damage. To this end, the particles or the coating consist(s) of a nucleus or a sub-layer and a shell or top layer, | 07-22-2010 |
Peter W. Oliveira, Saarbrucken DE
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20090141359 | PLASTIC FILM WITH A MULTILAYERED INTERFERENCE COATING - A polymer film with an optical interference system. The optical interference system comprises at least two layers of different refractive index, which layers comprise nanoscale inorganic particles having organic surface groups that are polymerizable and/or polycondensable. The layers are at least partially crosslinked through the organic surface groups. | 06-04-2009 |
Peter William Oliveira, Saarbrucken DE
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20100032083 | METHOD FOR TRANSFERRING SURFACE TEXTURES, SUCH AS INTERFERENCE LAYERS, HOLOGRAMS AND OTHER HIGHLY REFRACTIVE OPTICAL MICROSTRUCTURES - The invention relates to a method for transferring surface structures such as interference layers, holograms, and other highly refractive optical microstructures to substrates. The aim of the invention is to devise a method which is used for transferring surface structures such as interference layers, holograms, and other highly refractive optical microstructures to substrates and can also be used in a high temperature range. The aim is achieved by a method comprising the following steps: a) a flexible intermediate support layer is applied to a support film as a release layer; b) an embossed sol is applied to the intermediate support layer and is provided with a surface structure; c) a stack encompassing a binder layer and the surface structure is produced; d) the support film is removed; e) the workpiece is thermally treated. | 02-11-2010 |
Peter William Oliveira, Saarbruecken DE
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20080247009 | Optical Component Made of an Inorganic-Organic Hybrid Material for the Production of Refractive Index Gradient Layers with High Lateral Resolution and Method for the Production Thereof - An organic-inorganic hybrid material comprising (a) at least one soluble organic polymer and (b) at least one mono- or polynuclear metal complex having at least one ligand which comprises at least one photochemically and/or thermally polymerizable functional group. Also disclosed is an optical component which is made by using the hybrid material. | 10-09-2008 |
20080261053 | Abrasion-Resistant and Scratch-Resistant Coatings Having a Low Index of Refraction on a Substrate - Disclosed is a substrate with an abrasion resistant and scratch-resistant coating that has a low index of refraction and comprises magnesium fluoride and at least one metal oxide or semimetal oxide. The coating can be obtained by applying a coating composition containing magnesium fluoride or a precursor thereof and at least one metal oxide or semimetal oxide, or a precursor thereof onto a substrate and then subjecting the same to a thermal treatment. | 10-23-2008 |
20140017399 | ABRASION-RESISTANT AND SCRATCH-RESISTANT COATINGS HAVING A LOW INDEX OF REFRACTION ON A SUBSTRATE - Disclosed is a substrate with an abrasion resistant and scratch-resistant coating that has a low index of refraction and comprises magnesium fluoride and at least one metal oxide or semimetal oxide. The coating can be obtained by applying a coating composition containing magnesium fluoride or a precursor thereof and at least one metal oxide or semimetal oxide, or a precursor thereof onto a substrate and then subjecting the same to a thermal treatment. | 01-16-2014 |
Raphael Oliveira, Backnang DE
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20130226425 | METHOD FOR PROTECTING A VEHICLE WITH AN AUTOMATIC PARKING BRAKE - A method for holding a vehicle at a standstill includes a first phase in which the brake pressure at the wheel brakes is retained so that the vehicle is held automatically by the service brake, and the braking force is then transferred to a parking brake so that in a second phase the vehicle is held solely by the parking brake. A risk inherent in this transfer is that the vehicle may begin to slip. The distance over which the vehicle slides in uncontrolled fashion can be made substantially shorter if, in the second phase in which the vehicle is being held by the parking brake, the movement of the vehicle is monitored by sensors, and brake pressure is automatically built up by way of an actuator as soon as the fact that the vehicle is rolling away has been detected. | 08-29-2013 |
20140114544 | METHOD FOR AUTOMATICALLY KEEPING A MOTOR VEHICLE AT A STANDSTILL - A method is described for automatically keeping a motor vehicle at a standstill. The motor vehicle includes a braking system having a valve for limiting the brake pressure to a predefinable pressure threshold value. Gradient information and a pressure threshold value dependent on the gradient information are ascertained. The pressure threshold value is set at the valve as soon as the motor vehicle is at a standstill and the service brake is applied. | 04-24-2014 |
Raphael Oliveira, Freiberg A.n. DE
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20110148186 | METHOD AND DEVICE FOR ACTIVATING A SWITHCHOVER VALVE IN THE CONTEXT OF A HILL-HOLDING FUNCTION - A method for activating the switchover valve of a brake circuit which is configured to build up brake pressure independently of the driver within the context of a vehicle standstill-holding function, is described, in which: the vehicle standstill is detected and, as long as the driver operates the brake during the standstill, the switchover valve is activated via a first current intensity other than zero (iUSV1) during a first phase; and the switchover valve is activated via a second current intensity other than zero (iUSV2) during a subsequent second phase; the first current intensity being selected in such a way that the switchover valve just closes at this current intensity; and the second current intensity being selected in such a way that the switchover valve is securely closed at this current intensity. | 06-23-2011 |
Raphael Oliveira, Untergruppenbach DE
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20090055067 | METHOD AND DEVICE FOR CARRYING OUT A STATIONARY HOLDING FUNCTION ON A MOTOR VEHICLE - A method for controlling a valve for maintaining brake pressure in a specified region of a brake circuit in a motor vehicle, in which the valve is controlled using a first control method, the specified region of the brake circuit is monitored with respect to the occurrence of a loss of brake pressure, and in response to a detected loss of brake pressure, the valve is controlled using a second control method. | 02-26-2009 |
20110001351 | Method and Device for the Reproducible Generation of a Specifiable Final Pressure in a Braking System - To achieve a specifiable, and thus reproducible final pressure in at least one part of the brake circuit, the pump is first actuated for pressure buildup or pressure reduction when the valve is closed. When a first specified setpoint pressure is reached, or when a pressure threshold value is exceeded, the valve is put into an open position using a first actuation. After the pump is switched off, the actuation of the valve is modified in such a way that, during a specifiable time, a continuous change of the first actuation is undertaken all the way up to a second actuation, in which the valve assumes a holding position, particularly while taking into consideration the pressure difference which prevails at the valve. | 01-06-2011 |