Koprowski
Adam Koprowski, Amsterdam NL
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20120191446 | System and method for creating a parser generator and associated computer program - A system is provided for building a parser generator. The system includes a grammar input module for inputting in the parser generator a grammar expressed in a given formalism. A checking module formally verifies that a given grammar belongs to a predetermined class of grammars for which a translation to a correct, terminating parser is feasible. A checking module formally verifies that a grammar expressed in the formalism is well-formed. A semantic action module defines a parsing result depending on semantic actions embedded in the grammar. The semantic action module ensures in a formal way that all semantic actions of the grammar are terminating semantic actions. A formal module generates a parser with total correctness guarantees, using the modules to verify that the grammar is well-formed, belongs to a certain class of feasible, terminating grammars and all its semantic actions are terminating. | 07-26-2012 |
Angelika Koprowski, Klagenfurt AT
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20140061733 | Semiconductor Device with a Passivation Layer - A semiconductor device includes a semiconductor body with a first surface, a contact electrode arranged on the first surface, and a passivation layer on the first surface adjacent the contact electrode. The passivation layer includes a layer stack with an amorphous semi-insulating layer on the first surface, a first nitride layer on the amorphous semi-insulating layer, and a second nitride layer on the first nitride layer. | 03-06-2014 |
20150056788 | Semiconductor Device with a Passivation Layer - A semiconductor device includes a semiconductor body with a first surface, a contact electrode arranged on the first surface, and a passivation layer on the first surface adjacent the contact electrode. The passivation layer includes a layer stack with an amorphous semi-insulating layer on the first surface, a first nitride layer on the amorphous semi-insulating layer, and a second nitride layer on the first nitride layer. | 02-26-2015 |
Brion Koprowski, Longmont, CO US
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20130169706 | Methods for Measurement of Microdisplay Panel Optical Performance Parameters - A testing system and method are described for use in testing a sequential display having a liquid crystal microdisplay panel. A channel is used for displaying a test image while a parameter of the panel is measured and another channel is used for compensating for DC errors introduced by the test image into the microdisplay panel. | 07-04-2013 |
Brion C. Koprowski, Longmont, CO US
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20110215274 | FERROELECTRIC LIQUID CRYSTAL MIXTURE WITH ORGANIC ION PAIR COMPOUND - Ferroelectric liquid crystal compositions including organic ion pair compounds wherein image sticking is reduced or eliminated. Use of the ferroelectric liquid crystal compositions in a ferroelectric liquid crystal display device allows for rapid image refresh rates without required a DC-balancing algorithm. The organic ion pair compounds provide electrical resistivity values for the compositions that result in reduced image sticking when the compositions are used in FLC display devices. | 09-08-2011 |
20120206500 | VIDEO DATA DEPENDENT ADJUSTMENT OF DISPLAY DRIVE - Devices and methods are disclosed for improving image quality in a display system. The devices and methods adjust the display optical states based on the input image data. The devices and methods may compensate for temporal variation of the optical states in a display panel arrangement having a liquid crystal and an insulating layer due to a net DC field across the liquid crystal. The variation in optical states may be variation between the position of the optic axis of the liquid crystal for a zero net DC field drive waveform and a drive waveform with a net DC field across the liquid crystal. The variation of the optic axis of the liquid crystal may be due to ionic charge movement through the liquid crystal. The display panel arrangement may have a decay time constant of the liquid crystal and the insulating layer less than a maximum time that is visually acceptable for image sticking to persist on the display panel. | 08-16-2012 |
Maciel Koprowski, Gdvnia PL
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20090316886 | FINE-GRAINED FORWARD-SECURE SIGNATURE SCHEME - The presented methods form the basis of a forward-secure signature scheme that is provably secure. Moreover, the presented methods form also the basis of a fine-grained forward-secure signature scheme that is secure and efficient. The scheme allows to react immediately on hacker break-ins such that signatures from the past still remain valid without re-issuing them and future signature values based on an exposed key can be identified accordingly. In general, each prepared signature carries an ascending index such that once an index is used, no lower index can be used to sign. Then, whenever an adversary breaks in, an honest signer can just announce the current index, e.g., by signing some special message with respect to the current index, as part of the revocation message for the current time period. It is then understood that all signatures made in prior time periods as well as all signatures make in the revoked period up to the announced index are valid, i.e., non-reputable. | 12-24-2009 |
Piotr Koprowski, Warszawa PL
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20130040336 | MUTANT STRAINS OF ESCHERICHIA COLI, A METHOD OF TESTING POTENTIAL ANTIBACTERIAL AGENTS USING SAID STRAINS AS WELL AS A TESTING KIT - The subject of the present invention are mutant strains of | 02-14-2013 |