UNIVERSITY OF OTTAWA Patent applications |
Patent application number | Title | Published |
20150316557 | COUMARIN-BASED FLUOROGENIC AGENTS AND USES THEREOF FOR SPECIFIC PROTEIN LABELLING - There are provided fluorescent labelling agents comprising a dimaleimide core connected to a fluorophore, processes for preparation thereof, and uses thereof for labelling and/or detection of specific protein targets. Fluorescent labelling agents comprising a compound having the structure of Formula I, and salts thereof, are described. | 11-05-2015 |
20140342918 | Method For Affinity Purification - The disclosure relates to a switchable aptamer having a high affinity for a selected target such as a virus, cell or antibody when in the presence of a binding ion and a low affinity for said target in the absence of said binding ion. The switchable aptamer may be isolated from a pool comprising a mixture of aptamers by incubating the pool with the target ligand and a binding ion to form target-aptamer complexes; separating unbound aptamer molecules from the target-aptamer complexes; contacting the target-aptamer complexes with a chelating agent having affinity for the binding ion wherein a switchable aptamer specific to said target is released from the target-aptamer complexes; and isolating the switchable aptamer released in the preceding step. | 11-20-2014 |
20140243217 | METHODS AND COMPOSITIONS FOR DETECTING PLANT EXPOSURE TO PLANT PATHOGENS - The present disclosure provides methods an compositions for the detection of plant exposure to plant pathogens. The methods relate to determining the identity of peptides isolated from the surface of plant starch granules. | 08-28-2014 |
20140135398 | Antioxidant Producing Bacterium and Uses Thereof - Bacterial strains are provided that can be isolated from the microflora of lowbush blueberry ( | 05-15-2014 |
20140013491 | Head Protection for Reducing Linear Acceleration - Safety head wear for use for example in high risk activities such as sports and industrial purposes where protection from head injuries is required. Components are provided inserted between the liner and outer shell and consists of two parts; a pod and a foam or foam like surrogate or structure. The foam or foam like material is contained in the chamber and is positioned in such a way to create constant force between the surface of the shell and head. The device provides a method of managing compression force characteristics of the helmet around the head designed to decrease brain trauma resulting from high linear acceleration during impacts to the helmet. | 01-16-2014 |
20130289314 | METHODS FOR MAKING POLYGLYCEROL - Methods are provided for making polyglycerol. The methods include heating glycerol at reduced pressure in the absence of a glyceride and in the presence of a catalytic amount of an acid selected from the group consisting of sulfuric acid, triflic acid, hydrochloric acid, hexafluorophosphoric acid, tetrafluoroboric acid and mixtures thereof. | 10-31-2013 |
20130269159 | NOVEL COMPOSITE PARTS, METHODS AND APPARATUS FOR MANUFACTURING THE SAME - Described is a method of forming a textile perform for a mold having a complex curvature. | 10-17-2013 |
20130247284 | Head Protection for Reducing Angular Accelerations - Safety head wear for use for example in high risk activities such as sports and industrial purposes where protection from head injuries is required. Components are provided inserted between the liner and outer shell and consists of two parts; a chamber or bladder and a fluid or gel like material. The fluid or gel material is contained in the chamber or bladder and is positioned in such a way to create low friction between the surface of the shell and liner or liner and head. It can also be used on the outer surface of the shell or placed within two layers of the liner. The device provides a method of independently managing both compression and shear force characteristics of the helmet around the head designed to decrease brain trauma resulting from high linear and angular acceleration during impacts to the helmet. | 09-26-2013 |
20130196381 | CELL-BASED PRODUCTION OF NANULOSONATES - The present invention relates to the cell-based production of bacterial nonulosonates and their biosynthetic precursors. Specifically, the present invention provides recombinant cells for the production of pseudaminic acid, legionaminic acid, UDP-2,4-diacetamido-2,4,6-trideoxy-β-L-altropyranose, and UDP-2,4-diacetamido-2,4,6-trideoxy-α-D-glucopyranose. Methods for producing the sugars are also provided. | 08-01-2013 |
20130133073 | SYSTEM AND METHOD FOR EVALUATING MARKETER RE-IDENTIFICATION RISK - Disclosures of databases for secondary purposes is increasing rapidly and any identification of personal data may from a dataset of database can be detrimental. A re-identification risk metric is determined for the scenario where an intruder wishes to re-identify as many records as possible in a disclosed database, known as a marketer risk. The dataset can be analyzed to determine equivalence classes for variables in the dataset and one or more equivalence class sizes. The re-identification risk metric associated with the dataset can be determined using a modified log-linear model by measuring a goodness of fit measure generalized for each of the one or more equivalence class sizes. | 05-23-2013 |
20130065868 | ANXIOYTIC MARCGRAVIACEAE COMPOSITIONS CONTAINING BETULINIC ACID, BETULINIC ACID DERIVATIVES, AND METHODS - Pharmaceutical compositions for preventing or treating anxiety, comprising betulinic acid or derivatives thereof are provided. Methods for preventing or treating anxiety with betulinic acid or derivatives thereof are also provided. The invention further provides betulinic-acid containing preparations of plants of the family Marcgraviaceae having anxiolytic activity and methods for making such extracts and using them to prevent or treat anxiety in a subject. | 03-14-2013 |
20130012477 | DERIVATIVES OF DILLAPIOL AND RELATED MONOLIGNANS AND USE THEREOF - Derivatives of dillapiol, sesamol and related monolignans having the following general formula: | 01-10-2013 |
20120321585 | Crosslinked Hydrogels and Related Method of Preparation - The present invention provides a method of manufacturing a hydrogel comprising the step of crosslinking a biopolymer using a carbodiimide crosslinker of Formula I wherein at least one of R | 12-20-2012 |
20120281211 | MINIATURIZED MULTIMODAL CARS ENDOSCOPE - A miniaturized imaging system is provided that operates in multiple modes, including a coherent anti-stokes Raman scattering (CARS) mode. The imaging system includes: a laser delivery subsystem that generates an excitation signal; a scanning mechanism configured to receive the excitation signal from the laser delivery subsystem and direct the excitation signal through an optics subsystem onto a sample, such that the optics subsystem compensates for chromatic aberration in the excitation signal; and a dichroic mirror that receives emission from the sample in a backward direction and directs the emission along a collection path to a detector. The light source for the laser delivery subsystem may be a single femtosecond pulse laser. | 11-08-2012 |
20110305345 | METHOD AND SYSTEM FOR A MULTI-MICROPHONE NOISE REDUCTION - A method for a multi microphone noise reduction in a complex noisy environment is proposed. A left and a right noise power spectral density for a left and a right noise input frame is estimated for computing a diffuse noise gain. A target speech power spectral density is extracted from the noise input frame. A directional noise gain is calculated from the target speech power spectral density and the noise power spectral density. The noisy input frame is filtered by Kalman filtering method. A Kalman based gain is generated from the Kalman filtered noisy frame and the noise power spectral density. A spectral enhancement gain is computed by combining the diffuse noise gain, the directional noise gain, and the Kalman based gain. The method reduces different combinations of diverse background noise and increases speech intelligibility, while guaranteeing to preserve the interaural cues of the target speech and directional background noises. | 12-15-2011 |
20110258206 | SYSTEM AND METHOD FOR EVALUATING MARKETER RE-IDENTIFICATION RISK - Disclosures of databases for secondary purposes is increasing rapidly and any identification of personal data may from a dataset of database can be detrimental. A re-identification risk metric is determined for the scenario where an intruder wishes to re-identify as many records as possible in a disclosed database, known as a marketer risk. The dataset can be analyzed to determine equivalence classes for variables in the dataset and one or more equivalence class sizes. The re-identification risk metric associated with the dataset can be determined using a modified log-linear model by measuring a goodness of fit measure generalized for each of the one or more equivalence class sizes. | 10-20-2011 |
20110142394 | MICRO-SIZE OPTICAL SWITCH ON SILICON-ON-INSULATOR PLATFORM - An innovative micro-size photonic switch is presented. The photonic switch is comprised of: a mirror having a reflecting surface; an input waveguide configured to receive an optical signal and output the optical signal at an angle of incidence upon the reflecting surface; an output tapered waveguide structure configured to output the optical signal reflected by the reflecting surface, and a set of output waveguide channels configured to output the optical signal switched by the tapered waveguide structure with one channel, where an angle formed between the input waveguide and the selected output waveguide channel at the reflecting surface exceeds the angle at which total internal reflection occurs. A switching mechanism is disposed adjacent to the reflecting surface and operable to change the refractive index along the reflective surface and thereby shift the angle at which the optical signal reflects from the mirror. More specifically, the switching mechanism may operate to change concentration of free carrier distribution along the reflective surface and thereby displace the effective reflecting interface of the mirror. In this way, the optical signal can be directed to one of two or more output ports of the output tapered waveguide structure and finally exited by one output waveguide channel that is connected to the selected port of the output tapered waveguide structure. The switch can be formed in a silicon layer of a silicon-on-insulator structure. | 06-16-2011 |
20110070254 | MUTATIONS IN THE INFLUENZA A VIRUS NS1 GENE AND USE THEREOF - NS1 variant polypeptides, proteins or functional fragments thereof are described which have useful properties for increasing viral protein synthesis, IFN induction, and IFN resistance. The NS1 variant polypeptides, proteins or functional fragments comprise a substitution in the amino acid sequence of the wild type NS1 protein at a position corresponding to Asp-2, Val-23, Leu-98, Phe-103, Ser-103, Met-106, Met-124, Asp-125, Val-180, Val-226 or Arg-227, or combinations thereof expressed alone or in infectious virus. | 03-24-2011 |
20110031100 | COMPOSITE MEMBRANES FOR MEMBRANE DISTILLATION AND RELATED METHODS OF MANUFACTURE - The present invention provides composite membranes for membrane distillation and related methods of manufacture. In particular, there is provided a composite hydrophilic/hydrophobic membrane comprising a hydrophilic polymer layer and a hydrophobic polymer layer comprising fluorinated surface-modifying macromolecules, wherein said composite membrane has a high vapour flux. Also provided herein are methods of manufacturing and optimizing the composite membranes and a membrane distillation system comprising the composite membranes. | 02-10-2011 |
20100139403 | PARAMETER INDEPENDENT DETECTION OF ROTATING MACHINERY FAULTS - A parameter-free method to analyze sensor signals incorporates two or more of frequency demodulation, amplitude demodulation and phase demodulation of the raw signal data. The resulting signal is transformed to a frequency domain, and target fault characteristics from the demodulated signal are identified. The method is used to detect faults in bearings, gears and other mechanical components. | 06-10-2010 |
20100077006 | Re-identification risk in de-identified databases containing personal information - A system and method of performing risk assessment of a dataset de-identified from a source database containing information identifiable to individuals is provided. The de-identified dataset is retrieved comprising a plurality of records from a storage device. A selection of variables from a user is received, the selection made from a plurality of variables present in the dataset, wherein the variables are potential identifiers of personal information. A selection of a risk threshold acceptable for the dataset from a user is received. A selection of a sampling fraction wherein the sampling fraction define a relative size of their dataset to an entire population is received. A number of records from the plurality of records for each equivalence class in the identification dataset for each of the selected variables. A re-identification risk using the selected sampling fraction is calculated. The re-identification risk meets the selected risk threshold is determined. | 03-25-2010 |
20100076693 | METHOD TO EXTRACT TARGET SIGNALS OF A KNOWN TYPE FROM RAW DATA CONTAINING AN UNKNOWN NUMBER OF TARGET SIGNALS, INTEREFERENCE, AND NOISE - A signal analysis method extracts transient target signals of known type from a raw data source signal that contains an unknown number of target signals. The method can enhance the analysis of data obtained from in-line oil-debris sensors. The method comprises steps of: defining signatures of the known target signal, and of at least one of the intrinsic noise and interfering signals; performing a mathematical transform that decomposes the raw data into distinct data sets; using the signal signatures to identify and nullify the data sets containing noise and interfering signal signatures; using the target signal signatures to identify the data sets containing target signal components, or may further use a thresholding rule to remove intrinsic noise from said data sets, and finally applying the inverse transform to the processed data sets in order to reconstruct an enhanced output signal. | 03-25-2010 |
20100068692 | ANTIFREEZE GLYCOPROTEIN ANALOGUES AND USES THEREOF - An antifreeze glycoprotein comprising at least one C-linked saccharide according to the following general formula: | 03-18-2010 |
20100057851 | RECONFIGURABLE MULTIMEDIA COLLABORATION SYSTEM - A system for multimedia communications implemented with reconfigurable technology is disclosed. The system includes: a SIP engine implemented in hardware that executes functions defined by Session Initiation Protocol (SIP); a XML engine implemented in hardware that executes functions defined by Extensible Markup Language (XML); and an interface that coordinates functions executed by the SIP engine and the XML engine. A standard set of features are provided for robust communications while permitting the addition of more features to enhance the multimedia communications experience. For example, audio and video communication, instant messaging and presence can be provided by the system while P2P and IP Multimedia Systems (IMS) can be provided through expansion. Reconfigurable technology allows the system to achieve optimal performance in performing various tasks. | 03-04-2010 |
20090148068 | IMAGE CLASSIFICATION AND SEARCH - An electronic image classification and search system and method are provided. Images are processed to determine a plurality of simple feature descriptors based upon characteristics of the image itself. The simple feature descriptors are grouped into complex features based upon the orientation of the simple feature descriptors. End-stopped complex feature descriptors and complex feature descriptors at multiple orientations are grouped into hypercomplex feature descriptors. Hypercomplex resonant feature descriptor clusters are generated by linking pairs of hypercomplex feature descriptors. Feature hierarchy classification can then be performed by adaptive resonance on feature descriptors and classifier metadata associated with the image can then be generated to facilitate indexing and searching of the image within a hierarchical image database. | 06-11-2009 |
20090138960 | Control access rule conflict detection - Methods and systems for access control systems such as firewalls. The system detects conflicts between two access control rules by finding all common variables between the two rules and determining if there are values for all the common variables that simultaneously satisfy both rules. If there are such values, and if the end result of the two rules are different, then the two rules are in conflict with one another. | 05-28-2009 |
20090074178 | Accelerating Scalar Multiplication On Elliptic Curve Cryptosystems Over Prime Fields - A method and apparatus for accelerating scalar multiplication in an elliptic curve cryptosystem (ECC) over prime fields is provided. Multiplication operations within an ECC point operation are identified and modified utilizing an equivalent point representation that inserts multiples of two. Algebraic substitutions of the multiplication operations with squaring operations and other cheaper field operations are performed. Scalar multiplication can also be protected against simple side-channel attacks balancing the number of multiplication operations and squaring operations and providing novel atomic structures to implement the ECC operation. In addition, a new coordinate system is defined to enable more effective operation of ECC to multiprocessor environments. | 03-19-2009 |
20080267458 | FACE IMAGE LOG CREATION - A system and method are provided for constructing face image logs from video surveillance that are complete and concise in the sense that the logs contain only the best images available for each individual observed. The quality of the face images are assessed and scored based upon a plurality of image criteria. The image criteria are combined to an overall quality score. The quality score is associated with the face image enabling the face log to be purged so that only high quality face images are contained in the log. | 10-30-2008 |
20080250700 | Apparatus and Method for Bio-Fuel Production - An apparatus for the production of a bio-fuel or a bio-fuel additive from plant-derived oils, animal fats or a mixture thereof, suitable for use in a diesel engine is disclosed. The apparatus comprises a porous membrane for separating a reaction mixture from a permeate, the reaction mixture comprising an alcohol, a feedstock comprising plant-derived oils, animal fats or mixture thereof, and a catalyst for converting said feedstock to a bio-fuel or a bio-fuel additive, wherein said porous membrane is substantially impermeable to the feedstock and substantially permeable to said bio-fuel or bio-fuel additive. A method using said porous membrane in the production of a bio-fuel or a bio-fuel additive is also disclosed | 10-16-2008 |
20080235788 | HAPTIC-BASED GRAPHICAL PASSWORD - A system and method of generating a graphical password is provided. User input into from input device is acquired based upon a grid point of a two dimensional grid mapped to the input device. A haptic input state of a haptic input device is acquired when the grid point when selected by the user. A tuple is generated based upon positional coordinates of the input device at the grid point and a value associated with the haptic input state of the haptic input device. A password can then be generated comprising multiple tuples. | 09-25-2008 |
20080233282 | Methods and Apparatuses For Material Deposition - An apparatus and method are described for deposition of materials such as particulate materials onto a surface. The methods employ the use of shockwaves or compression waves to project the particulate material onto the surface as desired. This allows for the preparation of solid objects or coated surfaces that exhibit, for example, superior density and uniformity. | 09-25-2008 |