Patents by Inventor Lawrence C Greer

Lawrence C Greer 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).

  • Two and three-dimensional near infrared subcutaneous structure imager using realtime nonlinear video processing
    Patent number: 10977776
    Abstract: A method includes placing an imaging device in contact with a sample, irradiating the sample via an illuminator such that radiation scatters off of the structure, and providing the scattered radiation to a detector to generate a digital video signal. A processor then performs various operations including subtracting a sum of a black state value and a user-defined black level clamping value from the digital video signal to create subtracted image data, substituting negative values in the subtracted image data with a reference value to create modified image data, and amplifying the modified image data by a user-defined gain to create contrast enhanced image data.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: April 13, 2021
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Michael J. Krasowski, Joseph M. Flatico, Phillip P. Jenkins, Lawrence C. Greer
  • Multi-spoked wheel assembly
    Patent number: 10451156
    Abstract: A robust ground traction (drive) assembly for remotely controlled vehicles, which not only operates smoothly on surfaces that are flat, but also upon surfaces that include rugged terrain, snow, mud, and sand, is provided. The assembly includes a sun gear and a braking gear. The sun gear is configured to cause rotational force to be applied to second planetary gears through a coupling of first planetary gears. The braking gear is configured to cause the assembly (or the second planetary gears) to rotate around the braking gear when an obstacle or braking force is applied.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: October 22, 2019
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Adminstration
    Inventors: Michael J. Krasowski, Lawrence C. Greer
  • Apparatus and method for communication over power lines
    Patent number: 10069536
    Abstract: An apparatus and method are provided for communicating over power lines. The apparatus includes a coupling modem that is situated between a power line and a device. The coupling modem is configured to demodulate a signal received from the power line into a sine signal and a cosine signal. The coupling modem is also configured to modulate a communicated bit stream received from the device into a transmitted signal in order to impose the transmitted signal onto the power line.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: September 4, 2018
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Michael J. Krasowski, Norman F. Prokop, Lawrence C. Greer, III, Jennifer M. Nappier
  • Two and three dimensional near infrared subcutaneous structure imager using real time nonlinear video processing
    Patent number: 10062356
    Abstract: An imager is provided for viewing subcutaneous structures. In an embodiment of the invention, the imager includes a camera configured to generate a video frame, and an adaptive nonlinear processor. The adaptive nonlinear processor is configured to adjust a signal of the video frame below a first threshold to a maximum dark level and to adjust the signal of the video frame above a second threshold to a maximum light level. The imager further includes a display, configured to display the processed video frame.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: August 28, 2018
    Assignee: The United States of America as Represented by the Admin of National Aeronautics and Space Administration
    Inventors: Michael J Krasowski, Joseph M Flatico, Phillip P Jenkins, Lawrence C Greer
  • Apparatus and method for communication over power lines
    Patent number: 9660680
    Abstract: An apparatus and method are provided for communicating over power lines. The apparatus includes a coupling modem that is situated between a power line and a device. The coupling modem is configured to demodulate a signal received from the power line into a sine signal and a cosine signal. The coupling modem is also configured to modulate a communicated bit stream received from the device into a transmitted signal in order to impose the transmitted signal onto the power line.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 23, 2017
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Michael J. Krasowski, Norman F. Prokop, Lawrence C. Greer, III, Jennifer M. Nappier
  • Apparatus and method for communication over power lines
    Patent number: 9142961
    Abstract: An apparatus and method are provided for communicating over power lines. The apparatus includes a coupling modem that is situated between a power line and a device. The coupling modem is configured to demodulate a signal received from the power line into a sine signal and a cosine signal. The coupling modem is also configured to modulate a communicated bit stream received from the device into a transmitted signal in order to impose the transmitted signal onto the power line.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: September 22, 2015
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Michael J. Krasowski, Norman F. Prokop, Lawrence C. Greer, III, Jennifer M. Nappier