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Andreas Hofmann
Andreas Hofmann, Falkenfels DE
| Patent application number | Description | Published |
|---|---|---|
| 20100185379 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE - Actual values of a load variable are detected by a sensor during active model trimming under different valve pressure conditions, and a model of estimated values is created. Trimming values of a model parameter are determined depending on detected and modeled values such that when the model parameter is trimmed, the modeled values approximate the detected values. A function is determined depending on the different pressure conditions and approximated to the trimming values. At different pressure conditions first lambda control values are detected. A first controller value fitted function is determined depending on the pressure conditions and approximated. When the model trimming mode is not active, second lambda control values are detected at different pressure conditions. A second controller value fitted function is determined depending on the pressure conditions and is approximated. An error of the intake system is detected depending on the fitted functions. | 07-22-2010 |
| 20110067678 | METHOD AND DEVICE FOR OPERATING AN INTERNAL COMBUSTION ENGINE AND AN INTERNAL COMBUSTION ENGINE - An internal combustion engine has an air intake system with an air intake pipe and which communicates with a combustion chamber of a cylinder as a function of a switch position of a gas inlet valve. Furthermore, a compressor is disposed in the air intake system and is embodied for the purpose of compressing a mass air flow. Also, a throttle valve is disposed in the air intake system downstream of the compressor and by which the compressed mass air flow into the air intake pipe can be throttled. The internal combustion engine furthermore has a differential pressure sensor which is disposed in the air intake system and is embodied for the purpose of measuring a differential pressure between a charge pressure that prevails downstream of the compressor and upstream of the throttle valve and an ambient pressure that prevails outside of the air intake system. | 03-24-2011 |
Andreas Hofmann, Wien AT
| Patent application number | Description | Published |
|---|---|---|
| 20100176867 | Noise Generator - A noise generator for generating band-limited noise from a plurality of sinusoidal signals at the same level and equidistant frequency position in the noise spectrum is provided. A noise signal has a low crest factor and for this purpose the phase position of each individual sinusoidal signal is determined. | 07-15-2010 |
Andreas Hofmann, Wallenfels DE
| Patent application number | Description | Published |
|---|---|---|
| 20090262357 | PLASMON RESONANCE SENSOR - The plasmon resonance sensor ( | 10-22-2009 |
| 20100028903 | METHOD AND DEVICE FOR EXAMINING THE ATTACHMENT OR DETACHMENT OF LIVING OR DEAD CELLS OR CELL-LIKE PARTICLES OR OTHER SURFACE ACCUMULATIONS ON SURFACES BY MEANS OF PLASMON RESONANCE AND USE OF SAID METHOD AND SAID DEVICE - The invention relates to the examination of the attachment or detachment of living or dead cells, or cell-like particles, or other surface accumulations on surfaces, by means of plasmon resonance. The reflected light is evaluated such that two or more intensity minima of the reflected light occurring within a time frame are registered in a time dependant manner for different incident angles. The registered measurement signals reflect the respective amount of the surface accumulation. In case two intensity minima have occurred at the same time, valuable information about particular processes regarding the surface accumulation, for example regarding the adhesion of cells, can be obtained. Said information is of particular importance in the field of medicine/biology. | 02-04-2010 |
Andreas Hofmann, Bonn DE
Andreas Hofmann, Graefenberg DE
| Patent application number | Description | Published |
|---|---|---|
| 20110152766 | IMPLANT WITH COATING - One embodiment of the invention relates to an implant with a coating containing at least one active pharmaceutical substance. The inventive implant is characterized in that the coating is covered by a protective layer comprising or containing one or more materials from the group including shellac, vinylpyrrolidone-vinyl acetate copolymer, vinyl acetate-crotonic acid copolymer, vinyl acetate-vinyl propionate-crotonic acid terpolymer, methylvinyl ether-maleic anhydride copolymer, vinylpyrrolidone-dimethylaminoethyl acrylate copolymer, polyvinylpyrrolidone, polyvinyl acetate, polycrotonic acid, polyvinyl propionate, polymethylvinyl ether, polymaleic anhydride and polydimethylaminoethyl acrylate. | 06-23-2011 |
| 20110208284 | PROTECTIVE SLEEVE FOR A MEDICAL DEVICE, SYSTEM COMPRISING A PROTECTIVE SLEEVE AND A MEDICAL DEVICE, AND A METHOD FOR THE PRODUCTION THEREOF - A protective sleeve for a medical device including a main body which has a distal end and a proximal end and on the lateral surface of which at least one stop element is disposed, which during insertion of the protective sleeve into an introducer limits the insertion depth of the protective sleeve into the introducer and which preferably is disposed at the distal end of the main body. | 08-25-2011 |
Andreas Hofmann, Rostock DE
| Patent application number | Description | Published |
|---|---|---|
| 20130026593 | THIN FILM PHOTOVOLTAIC DEVICE WITH ENHANCED LIGHT TRAPPING SCHEME - A thin film photovoltaic device comprising a relief textured transparent cover plate, a layer of transparent conductive oxide having a layer thickness of less than 700 nm, a light absorbing active layer and a reflective back electrode, where the layer of transparent conductive oxide is a non-textured layer. | 01-31-2013 |