Patents Represented by Attorney Brion Raffoul
  • Patent number: 8340588
    Abstract: A system for estimating parameters of an incoming signal is provided. At least one antenna is coupled to at least one suitable receiver. The antenna(s) are spatially translated in an arbitrary trajectory. As the antenna(s) is being spatially translated, a data processing means samples the incoming signal at set intervals based on a clock signal provided by a system clock. By sampling the incoming signal at different times at different spatial locations on the arbitrary trajectory, the system acts as a synthetic antenna array. The different samplings of the incoming signal at different times and positions provide signal diversity gain as well as different readings which can be used to estimate and/or calculate various parameters of the incoming signal. The different samplings can be used to detect the incoming signal, estimate its angle of arrival, estimate its time of arrival, as well as other parameters.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: December 25, 2012
    Assignee: Her Majesty the Queen in right of Canada as Represented by the Minister of National Defence
    Inventors: John Nielsen, Gerard Lachapelle, Ali Broumandan
  • Patent number: 8299411
    Abstract: Systems for controlling flow effector control surfaces. The system comprises a flow effector control coupled to an elongated bar at one end of the bar. The elongated bar is coupled at the other end to the middle of a T-shaped member. A compliant link is coupled to the bar between the control surface and the T-shaped member. At each end of the T-shaped member is coupled a shape memory alloy wire which acts as an actuating means. When one of the shape memory alloy wire contracts, the elongated bar pivots about the compliant link and activates or retracts the flow effector control surface.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: October 30, 2012
    Assignee: Her Majesty in Right of Canada as Represented by the Minister of National Defence
    Inventors: Frank Wong, Camille Alain Rabbath, Nicholas Lechevin, Olivier Boissonneault
  • Patent number: 8092646
    Abstract: A vaporization apparatus and related vaporization method is provided that relies on thermocapillary convection. The apparatus of a thermocapillary evaporator has three sections: an evaporation section, a displacement section, and a storage system for storing the liquid to be evaporated. The evaporation section is operable to distribute thermal energy substantially along the entire liquid-gas interface. The method of the present invention includes providing a thermocapillary evaporator. Advantageously, the present invention provides substantial evaporation from relatively low temperature heat sources, compared to conventional evaporators.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: January 10, 2012
    Inventor: Ward Charles Albert
  • Patent number: 8055130
    Abstract: Systems and devices for use as optical transceivers and amplifiers in optical networks. An optical transceiver/amplifier has two optical signal circulators, each of which receives one incoming signal and transmits one outgoing optical signal. Each circulator combines its incoming and outgoing signals on to a bidirectional optical connection internal to the transceiver amplifier. Between the two circulators are a pump laser, an optical coupler to couple the pump laser's power into the bidirectional connection, and an amplifying medium for amplifying the bidirectional signals internal to the transceiver amplifier. The amplifying medium may be an Erbium doped fiber which would amplify any optical signal passing through it. In one embodiment, the transceiver amplifier is in a self-contained package that is pluggable into existing equipment using pre-existing ports and interfaces.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: November 8, 2011
    Assignee: Dowslake Microsystems Corp.
    Inventor: Dan Yang
  • Patent number: 7952519
    Abstract: Methods and systems for detecting GNSS signals originating from an inauthentic source. A synthetic array using a receiver antenna which is randomly spatially translated may be used to gather alleged GNSS signals. The signals are then processed to determine the spatial correlation between them. A high spatial correlation between the signals indicates a probable inauthentic source for the GNSS signals.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: May 31, 2011
    Inventors: John Nielsen, Ali Broumandan, Gerard LaChapelle
  • Patent number: 7801365
    Abstract: Methods and systems for compressing a continuous data flow for numerous applications where it is necessary to process large data sets such as hyper-spectral data cubes in real-time. A predetermined number of 2D focal plane frames in a boundary area of a previous regional data cube close to a current regional data cube are included in a training set used for codevector training for the current region. Therefore, no artificial boundary occurs between the two adjacent regions when codevectors trained in this way are used for codebook generation and encoding of the spectral vectors of the current regional data cube. This process substantially reduces image artifacts between adjacent regions. A remedy for the single bit error problem is also provided. Full redundancy of compressed data for a regional data cube is obtained by combining a previous regional data cube and the current regional data cube for codebook training.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: September 21, 2010
    Assignee: Canadian Space Agency
    Inventors: Shen-En Qian, Allan B. Hollinger
  • Patent number: 7778499
    Abstract: Methods and devices relating to a sensor for use in detecting and monitoring molecular interactions. A silicon waveguide sensing element is provided along with a layer of silicon. A silicon oxide layer is also provided between the waveguide element and the layer of silicon. The sensing element is adjacent to an aqueous solution in which the molecular interactions are occurring. A light beam travelling in the silicon waveguide creates an evanescent optical field on the surface of the sensing element adjacent to the boundary between the sensing element and the aqueous medium. Molecular interactions occurring on this surface affect the intensity or the phase of the light beam travelling through the waveguide by changing the effective refractive index of the medium. By measuring the effect on the intensity, phase, or speed of the light beam, the molecular interactions can be detected and monitored in real time.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 17, 2010
    Assignee: National Research Council of Canada
    Inventors: Siegfried Janz, Pavel Cheben, Andre Delage, Adam Densmore, Dan-Xia Xu
  • Patent number: 7759060
    Abstract: Methods for diagnosing or detecting cancerous prostate tissue. A panel of 8 specific marker genes are provided. The overexpression of some of these marker genes compared to their expression in normal prostate tissue and the underexpression of the rest of these marker genes are indicative of cancerous prostate tissue. By using these 8 marker genes as a diagnostic tool, smaller tissue samples, such as those obtained by core needle biopsies can be used.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: July 20, 2010
    Assignee: National Research Council of Canada
    Inventors: Nabil Belacel, Miroslava Cuperlovic-Culf, Rodney Ouellette
  • Patent number: 7657081
    Abstract: Systems and methods for generating and optimizing 3D models of objects. A laser scanner is controlled by a data processing subsystem that controls the scanning and processes the data generated. From an initial model, either a raster scan of the object or an initial scan, the system scans the object multiple times, each time adjusting the laser scanner to maximize a correlation between the data generated and the model. The model is also updated using the scan data and taking into account the adjustments which were applied to the laser scanner. Other adjustments, such as those which would remove the effect of relative motion on the scan data, are also accounted for when incorporating scan data into the model. The model is recursively adjusted and optimized using previous scan data (both pre-recorded and fresh scan data) and previous adjustments. The model may be modified and adjusted using previous scan data and an Iterative Closest Point method.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: February 2, 2010
    Assignee: National Research Council of Canada
    Inventors: Francois Blais, Michel Picard
  • Patent number: 7551785
    Abstract: The present invention relates to a method and system for compressing a continuous data flow in real-time based on lossy compression. In real-time data compression, a series of multi-dimensional data subsets acquired in a given period of time are treated as a regional data cube for the purpose of dividing a continuous series of data subsets into a plurality of data cubes. In a first embodiment implementation of parallel processing using a plurality of compression engines is facilitated by separating a data cube into a plurality of clusters comprising similar spectral vectors. By separating the data cube into clusters of similar spectral vectors no artificial spatial boundaries are introduced substantially improving image quality. Furthermore, the spectral vectors within a cluster are more easily compressed due to their similarity.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: June 23, 2009
    Assignee: Canadian Space Agency
    Inventors: Shen-En Qian, Allan B. Hollinger