Patents Represented by Attorney, Agent or Law Firm Curtis A. Vock, Esq.
  • Patent number: 6563053
    Abstract: The invention includes system for modifying ice adhesion strength of ice adhered to an object. The system includes an electrode that is electrically insulated from the object and a DC source, e.g., a battery, coupled to the object and the electrode. The source generates a DC bias to an interface between the ice and the object when the ice completes the circuit. The object is conductive or is doped as a semiconductor so that the DC bias applies a voltage a voltage to the interface which modifies the ice adhesion strength selectively as compared to the ice adhesion strength with substantially zero bias voltage at the interface. The strength can be increased or decreased relative to its static state (i.e., the state without applied voltage). In this manner, ice such as ice on an aircraft wing can be removed with less work.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: May 13, 2003
    Assignee: Trustees of Dartmouth College
    Inventor: Victor F. Petrenko
  • Patent number: 6525302
    Abstract: The present invention provides extended depth of field or focus to conventional Phase Contrast imaging systems. This is accomplished by including a Wavefront Coding mask in the system to apply phase variations to the wavefront transmitted by the Phase Object being imaged. The phase variations induced by the Wavefront Coding mask code the wavefront and cause the optical transfer function to remain essentially constant within some range away from the in-focus position. This provides a coded image at the detector. Post processing decodes this coded image, resulting in an in-focus image over an increased depth of field.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: February 25, 2003
    Assignee: The Regents of the University of Colorado
    Inventors: Edward Raymond Dowski, Jr., Carol Jean Cogswell
  • Patent number: 6498994
    Abstract: A method is disclosed for evaluating shoes worn by a person for activity on ground, including the steps of determining forces of acceleration experienced by the person in a direction generally perpendicular to the ground, processing signals representative of the forces of acceleration over a time interval to determine energy experienced by the person while wearing the shoes, reporting the energy to the person, and evaluating the shoes based on the energy. Another method is disclosed for ratioing energy from two different locations on a person for determining energy experienced by the person during activity over ground.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: December 24, 2002
    Assignee: PhatRat Technologies, Inc.
    Inventors: Curtis A. Vock, Dennis Darcy, Peter Flentov
  • Patent number: 6496787
    Abstract: The invention detects loft time and/or speed of a vehicle and/or person during activities of moving and jumping. A loft sensor detects leaving the ground and returning to the ground. A microprocessor subsystem converts the sensed information to determine a loft time. A display shows the recorded loft time to a user of the system. A speed sensor can detect speed for selective display to the user, and height may also be determined during airtime.
    Type: Grant
    Filed: July 14, 1999
    Date of Patent: December 17, 2002
    Assignee: PhatRat Technologies, Inc.
    Inventors: Peter Flentov, Dennis M. Darcy, Curtis A. Vock
  • Patent number: 6448788
    Abstract: An improved method and apparatus for microwave imaging of an inhomogeneous target, in particular of biological tissue, compensates for the interactions between active antennae and nonactive antennae. Measured electric field data are processed in magnitude and phase form so that unwrapped phase information may be used directly in the image reconstruction. Initial finite element measurements and calculations are used to determine the perimeter dimensions of the target being examined, resulting in more accurate image reconstructions. An improved regularization technique is a hybrid of a Marquardt regularization scheme with a spatial filtering technique and a Tikhonov regularization scheme. An improved switching matrix enables simultaneous sampling of electric field data from a plurality of receiving antennae.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: September 10, 2002
    Assignee: Microwave Imaging System Technologies, Inc.
    Inventors: Paul M. Meaney, Keith D. Paulsen, Margaret W. Fanning
  • Patent number: 6408307
    Abstract: A user can access a common database from a remote communications port, at any qualified location, to generate a map or other positional information which locates selected items of interest, e.g., businesses, stores, architectural sites, and the like. The database contains information representing the items of interest, including, for each of the items of interest, positional coordinates, a geographic vicinity, and a selected category. The positional coordinates discretely locate the vicinity, while the vicinity specifies the exact locations of the items of interest in the selected category. For example, a user in New York can select the display of sporting shops in the area surrounding Chicago O'Hara International Airport selectively. A user can also access a port and display locations of items of interest within the same vicinity as the user and relative to the user's position. The database can be modified from qualified remote locations to change, or add to, the information therein.
    Type: Grant
    Filed: August 28, 1997
    Date of Patent: June 18, 2002
    Assignee: Civix-DDI, LLC
    Inventors: William T. Semple, Lincoln Bouve, Steven W. Oxman
  • Patent number: 6381072
    Abstract: A stacked array magnifier (SAM) forms a magnified, demagnified or unit image of an object. The SAM includes one or more non-refractive lenslet arrays and one or more refractive lenslet arrays to form a plurality of lenslet channels. Each lenslet channel has at least one refractive lenslet and at least one non-refractive lenslet. SAMs are combined and tiled to form a scaleable display of flat panel displays. Multiple SAMs are used to increase magnification selectively. Hybrid lenslet arrays of the invention are also useable for optical processing and non-imaging applications.
    Type: Grant
    Filed: July 20, 2000
    Date of Patent: April 30, 2002
    Assignee: Proxemics
    Inventor: Robert J. Burger
  • Patent number: 6362986
    Abstract: A DC-to-DC converter generates an output voltage from an input voltage. The converter includes first and second inductive windings and a magnetic core. One end of the first winding is switched at about 180 degrees out of phase with one end of the second winding, between ground and the input voltage. The first winding is wound about the core in a first orientation, and the second winding is also wound about the core in the first orientation so as to increase coupling between windings and to reduce ripple current in the windings and other parts of the circuit. This version is a buck converter—versions that form boost, buck-boost and other converters are also provided. The invention also provides a multi-phase DC-to-DC converter for providing an output voltage from an input voltage. The converter has N (N≧2) inductive windings alternatively switched, again in the buck-converter version, between ground and the input voltage. Again, boost, buck-boost, or other versions are also provided.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: March 26, 2002
    Assignee: Volterra, Inc.
    Inventors: Aaron M. Schultz, Charles R. Sullivan