Perz
Alfred F. Perz, Covina, CA US
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20110005250 | Switching pressure regulator - A system for converting gas flowing at variable flow rates and pressure to gas flow at a load dependent flow rate and a regulated pressure. A valve member operable in only two stable states (fully open and closed) by valve actuation means, said valve actuation means being interposed between an input manifold adapted to carry volumes of gas flow at variable flow rates and pressure and an output manifold adapted to carry gas flow at a predetermined constant pressure; a reservoir/accumulator in open connection to said output manifold for temporary storage of portions of said gas flowing through said output manifold; pressure sensing means for monitoring the pressure of the gas flow through said output manifold; and electronic processing means connected to said gas pressure sensing means for activating said valve actuation means in one of its two bi-stable states, depending upon the gas pressure sensed in said output manifold. | 01-13-2011 |
Cindy Perz, Vista, CA US
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20090087051 | Image Quality for Diagnostic Resolution Digital Slide Images - An improved diagnostic resolution of digital slide images is obtained by scanning a first digital slide image at diagnostic resolution that is then deconvolved into separate images with one stain per image. The single stain images are then enhanced with image adjustments and/or processed with image analysis algorithms. The resulting single image data sets from the image analysis algorithms can then be stored. Additionally, the resulting enhanced single images can be recombined into a second digital slide image at diagnostic resolution that is also enhanced. | 04-02-2009 |
20120275671 | System and Method to Determine Slide Quality of a Digitized Microscope Slide - A system that determines the quality of a digital microscope slide by analyzing digital slide images based on complexity and spatial frequencies. An example embodiment detailed in the application may provide visual feedback on the whole slide quality by overlaying the image with a color coded “heat map” of local area quality. A user provided with the overlap image may obtain both an absolute quality measurement for the whole image and quickly identity the quality variability within the slide. | 11-01-2012 |
20140044327 | System and Method To Determine Slide Quality of a Digitized Microscope Slide - Systems and methods for assessing the quality of a digital slide image. In an embodiment, the digital slide image is divided into a plurality of image regions. For each of a subset of the plurality of image regions, a quality of the image region is determined based on a determined spatial frequency of the image region. In addition, a visual depiction of the digital slide image may be generated that, for each of the subset of the plurality of image regions, indicates the determined quality of that image region. | 02-13-2014 |
20140294266 | System and Method To Determine Slide Quality of a Digitized Microscope Slide - Methods, media, and systems for assessing the quality of a digital image. In an embodiment, both a micro-analysis and macro-analysis are performed. The micro-analysis comprises dividing the digital image into a plurality of blocks, for two or more of the plurality of blocks, determining a score based on a spatial frequency of the block, and generating a score map for the digital image based on the score for each of the two or more blocks. The macro-analysis comprises detecting artifacts in the digital image, computing a degradation score based on detected artifacts, and computing a whole-slide-quality score based on the score map and the degradation score. | 10-02-2014 |
Cynthia Perz, Vista, CA US
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20110115897 | Whole Slide Fluorescence Scanner - A whole slide fluorescence digital pathology system is provided that uses a monochrome TDI line scan camera, which is particularly useful in fluorescence scanning where the signal is typically much weaker than in brightfield microscopy. The system uses oblique brightfield illumination for fast and accurate tissue finding and employs a unique double sweep focus scoring and objective lens height averaging technique to identify focus points and create a focus map that can be followed during subsequent scanning to provide autofocusing capability. The system also scans and analyzes image data to determine the optimal line rate for the TDI line scan camera to use during subsequent scanning of the digital slide image and it also creates a light profile to compensate for loss of illumination light due to roll off. | 05-19-2011 |
20140247379 | Whole Slide Fluorescence Scanner - A system for creating a contiguous digital image of a fluorescence microscope sample. In an embodiment, the system comprises a both a macro camera and a time delay integration (TDI) line scan camera. The system may also comprise a motorized stage, an illumination module, a light source, an excitation filter, an objective lens, an emission filter, and at least one processor configured to assemble a plurality of digital images of portions of the fluorescence microscope sample, generated by the TDI line scan camera, into a contiguous digital image of at least a portion of the fluorescence microscope sample. | 09-04-2014 |
Cynthia B. Perz, Huntington Beach, CA US
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20100040266 | System for and method of intelligently directed segmentation analysis for automated microscope systems - The present disclosure includes systems and techniques relating to intelligently directed segmentation analysis for automated microscope systems. In general, in one implementation, the technique includes obtaining an image of at least a portion of a scan region including a biological specimen, partitioning the obtained image into zelles, determining one or more parameters of the zelles, performing a cluster analysis on the one or more parameters of the zelles, differentiating tissue of greater interest from tissue of lesser interest in the obtained image based on the cluster analysis and based on a test being performed for the biological specimen, and storing more information for the tissue of greater interest than information for the tissue of lesser interest. The cluster analysis can be a multivariate statistical cluster analysis, and the zelles can be test-dependent zelles (e.g., having dimensions defined according to the test being performed for the biological specimen). | 02-18-2010 |
20100141682 | Silhouette image acquisition - Systems and techniques to acquire image data. In general, in one implementation, the technique includes: acquiring image data for a plurality of areas of a scan region. The technique may further include processing the image data to determine whether an area includes one or more desired features. The technique may further include designating an area as “interesting” if it includes a desired feature, and designating an area as non-interesting if it does not include the desired feature. The areas may be sub-divided one or more times, and subdivisions may be analyzed to determine if they include a desired feature. | 06-10-2010 |
20100265323 | SYSTEM FOR AND METHOD OF FOCUSING IN AUTOMATED MICROSCOPE SYSTEMS - The present disclosure includes systems and techniques relating to focusing in automated microscope systems. In general, in one implementation, the technique includes obtaining an image of at least a portion of a scan region, analyzing the image to find an area in the image representing a sample, determining a nature of the sample at a selected focus point location in the area in the image, selecting an automated focusing process for use at the selected focus point location based on the determined nature of the sample at the selected focus point location, and focusing the selected automated focusing process. The selecting can include selecting different automated focusing processes for different focus point locations based on different tissue characteristics at the locations. | 10-21-2010 |
Daniel J. Perz, Windsor CA
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20100108927 | SILENT SOLENOID VALVE FOR FLUID REGULATION SYSTEM - A fluid regulator system includes at least one solenoid valve for interrupting flow of the fluid. The solenoid valve solenoid valve includes a plunger that is actuated by a solenoid, i.e., a coil. A plunger stop limits movement of the plunger when the solenoid is energized. A recess defined a top of the plunger. A plunger bumper assembly is disposed at least partially within the recess of the top of the plunger and at least partially between the top of the plunger and the plunger stop. The plunger bumper assembly includes a resilient component formed of a resilient material for dampening noise produced by a contact between the plunger bumper assembly and the plunger stop. | 05-06-2010 |
Daniel James Perz, Windsor CA
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20130334127 | FILTER ASSEMBLY - A filter assembly includes a housing defining a cavity with an inlet and an outlet in communication with the cavity and establishing a flow path from the inlet to the outlet. A filter is disposed in the cavity between the inlet and the outlet. The filter includes a vertex extending transversely to the flow path for diffusing the flow of fluid and increasing the surface area of the filter. The filter includes a pair of legs spaced from each other and each extending across the flow path from the vertex to the housing. The legs extend transversely to each other at the vertex with one of the legs extending along a first arcuate path from the vertex to the housing and the other of the legs extending along a second arcuate path different than the first arcuate path from the vertex to the housing. | 12-19-2013 |
Dominic Perz, Bloomington, MN US
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20110249844 | METHODS AND APPARATUS FOR IMPROVED NOISE REDUCTION FOR HEARING ASSISTANCE DEVICES - Disclosed herein, among other things, are methods and apparatus for improved noise reduction for hearing assistance devices. In various embodiments, a hearing assistance device includes a microphone and a processor configured to receive signals from the microphone. The processor is configured to perform noise reduction which adjusts maximum gain reduction as a function of signal-to-noise ratio (SNR), and which reduces the strength of its maximum gain reduction for intermediate signal-to-noise ratio levels to reduce speech distortion. In various embodiments, the hearing assistance device includes a memory configured to log noise reduction data for user environments. Also provided are methods to further adjust the noise reduction based on the logged information. | 10-13-2011 |
Leroy L. Perz, Buffalo, MN US
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20110106213 | USER INTERFACE FOR OPTIMIZING ENERGY MANAGEMENT IN A NEUROSTIMULATION SYSTEM - In one aspect, a programmer for an implantable medical device comprises a user interface that receives user input corresponding to one or more selected stimulation therapy parameters for delivering stimulation therapy to a patient with the implantable medical device and presents an energy consumption estimate of a power source based on the selected stimulation therapy parameters; and a processor that determines one or more programming options that, if selected, would alter the selected stimulation therapy parameters and reduce the energy consumption estimate. The user interface presents at least one of the programming options to reduce the energy consumption estimate to the user with an indication that user selection of one or more of the presented programming options would alter the selected stimulation therapy parameters to reduce energy consumption of the implantable medical device. | 05-05-2011 |
Susan V. Perz, Essexville, MI US
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20100284088 | DICHROIC FILTERS FORMED USING SILICON CARBIDE BASED LAYERS - The present invention provides a method of forming a flexible dichroic optical filter. The method comprises depositing a plurality of pairs of layers adjacent a substrate. Each of the plurality of pairs of layers includes a first layer formed of a silicon-and-carbon containing material having a first index of refraction and a second layer formed of a silicon-and-carbon containing material having a second index of refraction that is different than the first index of refraction. | 11-11-2010 |
Susan Victoria Perz, Essexville, MI US
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20150307775 | METHOD OF PREPARING A COMPOSITE ARTICLE AND COMPOSITE ARTICLE - A method of preparing a composite article and the composite article prepared thereby are disclosed. The method comprises combining a precursor compound and nanoparticles produced via a plasma process to form a composition. The method further comprises forming the composite article from the composition. The composite article comprises a host matrix comprising SiO | 10-29-2015 |
Veronika Perz, Graz AT
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20140356540 | PROCESS FOR CURING SURFACE-COATING COMPOSITIONS - The present invention relates to a method for coating surfaces by applying an oxidatively drying coating composition comprising at least one oxidatively drying binder and at least one drying agent acting as an accelerator of the drying and curing process proceeding under the action of an oxidizing agent, characterized in that the drying agent comprises at least one oxidoreductase and at least one mediator which is converted by the at least one oxidoreductase. | 12-04-2014 |