Patents by Inventor Jonathan R. White

Jonathan R. White has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10340889
    Abstract: A method of and an apparatus for reducing noise in a non-Foster circuit having at least a pair of cross coupled transistor devices, each transistor device of the pair of cross coupled transistor devices having a pair of current carrying electrodes. The method and apparatus involves coupling inductors with each pair of the current carrying electrodes of each of the cross-coupled transistor devices in the non-Foster circuit, the inductors also being coupled with voltage and/or current sources associated with or coupled to the non-Foster circuit. The nominal values of the inductors are selected to provide a load asymmetry, so that the load inductor in the input side of the non-Foster circuit has a larger inductance than the load inductor at the output side of non-Foster circuit.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: July 2, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Zhiwei A. Xu, Carson R. White, Jonathan J. Lynch
  • Patent number: 9714085
    Abstract: Method and apparatus for determining the deflection or curvature of a rotating blade, such as a wind turbine blade or a helicopter blade. Also, methods and apparatus for establishing an inertial reference system on a rotating blade.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: July 25, 2017
    Assignee: Purdue Research Foundation
    Inventors: Jonathan R. White, Douglas E. Adams, Josh Paquette
  • Publication number: 20120031193
    Abstract: Structural health monitoring systems can be limited to a minimum number of sensors due to cost, complexity, and weight restrictions. Some embodiments described herein pertain to a load and damage identification techniques that utilize one sensor. Several passive force estimation techniques are presented. Some techniques use either the shape or the amplitude of the magnitude of the applied force in the frequency domain. Several techniques iteratively reduce an underdetermined set of equations of motion into many overdetermined systems of equations to solve for the force estimates. The techniques are shown to locate and quantify impulsive impacts with over 97% accuracy and non-impulsive impacts with at least 87% accuracy. Impacts not acting at a specific input degree of freedom are also accurately located depending on the distance away from the modeled input degrees of freedom, and damaging impact forces are quantified by making assumptions about the impulsive nature of the applied force.
    Type: Application
    Filed: April 1, 2010
    Publication date: February 9, 2012
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: Douglas E. Adams, Nick A. Stites, Nathanael C. Yoder, Jonathan R. White
  • Patent number: 5949056
    Abstract: A portable, hand-held data terminal of modular structure includes a base module with a keyboard and a display screen. A data collection and communications module includes a stacked arrangement of a communications interface main circuit board, a radio and a laser scanner assembly which are housed in a housing shell which is attachable to the base module. The radio is mounted in spaced relationship to one side of the main circuit board, while the laser scanner assembly is mounted to the other side of the main circuit board. A support frame and a plurality of ground planes in the sandwiched main circuit board and a routing circuit board form an RF cage for shielding RF interference which may be generated by the radio. Also disclosed is a method for reducing the operational power consumption requirements of laser bar code scanners by analyzing reflected laser light in order to determine the presence of optically readable information sets.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: September 7, 1999
    Assignee: Norand Corporation
    Inventor: Jonathan R. White
  • Patent number: 5837987
    Abstract: A hand-held optically readable information set reader having one or more photosensor arrays, at least one information set illuminator, and an information set image transfer system for projecting a readable image of an information set onto the one or more photosensor arrays.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: November 17, 1998
    Assignee: Norand Technology Corporation
    Inventors: Steven E. Koenck, Jonathan R. White, Phillip Miller, George E. Hanson, Arvin D. Danielson, Dennis A. Durbin
  • Patent number: 5576529
    Abstract: A hand-held optically readable information set reader having one or more photosensor arrays, at least one information set illuminator, and an information set image transfer system for projecting a readable image of an information set onto the one or more photosensor arrays.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: November 19, 1996
    Assignee: Norand Technology Corporation
    Inventors: Steven E. Koenck, Jonathan R. White, Phillip Miller, George E. Hanson, Arvin D. Danielson, Dennis A. Durbin
  • Patent number: 4882475
    Abstract: In the case of a pizza home delivery system, customer addresses and mapping information may be auomatically retrieved and displayed based on customer telephone number, and order data including an assigned order number may be imprinted on a label to be attached to each pizza container. Preferably, the system produces the order number in the form of a bar code on an adhesively backed label. Each driver may check out order for delivery by inserting his coded identification key at a bar code reader station and having the bar code labels scanned into the system, so that each order is assigned to a particular driver in a reliable and accurate manner. A voice synthesizer unit at the station can then remind the driver that the order includes beverages or more than one pizza container, and can advise the driver when the sum of the cash payments he has received for his deliveries exceeds a certain amount, making it advisable to deposit some of the accumulated cash before the next delivery.
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: November 21, 1989
    Assignee: PAR Microsystems, Inc.
    Inventors: Phillip Miller, Richard P. Shindley, Kristi T. Feltz, George E. Hanson, Jonathan R. White
  • Patent number: 4882476
    Abstract: In laser bar code scanners bright sunlight tends to overpower the reflected laser light, drastically reducing the difference between bar code and background signals. In the present bar code reader, a plurality of light detectors are utilized with different spectral response characteristics at the wavelength of the incident laser beam, such that the differential response of the detectors tends to minimize the effect of background illumination. Narrowband optical filters with offset passbands may be used with conventional light sensors. As another example, filters with long wavelength transmission characteristics and offset cutoff wavelengths may be employed if necessary with a neutral density filter to provide balanced responses under broadband illumination.
    Type: Grant
    Filed: September 10, 1986
    Date of Patent: November 21, 1989
    Assignee: Norand Corporation
    Inventor: Jonathan R. White