Patents by Inventor Karl W. Ulmer

Karl W. Ulmer 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: 11092693
    Abstract: A system and method provide automatic RF path gain calibration independent of RF interference levels to preserve solution trust capabilities. After a system is powered ON, or a new antenna is attached (hot swap), a smart antenna assembly combined with a jammer power estimator within an RF receiver functions to autonomously measure internal gains within the RF path, calibrate the new antenna installation, and thereby measure a level of interference associated with the external environment from that point forward. A controller commands the antenna calibration retrieving antenna details and RF path gain calibration while measuring local jamming at the receiver input. Should the controller determine a level of jamming effectiveness is present, it offers a user a display of the local jamming levels enabling the user accurate theater decision making regarding the accuracy and availability of desirable signal.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: August 17, 2021
    Assignee: Rockwell Collins, Inc.
    Inventors: Karl W. Ulmer, Troy V. Mundt, Gary L. Bachman
  • Publication number: 20210208285
    Abstract: A system and method provide automatic RF path gain calibration independent of RF interference levels to preserve solution trust capabilities. After a system is powered ON, or a new antenna is attached (hot swap), a smart antenna assembly combined with a jammer power estimator within an RF receiver functions to autonomously measure internal gains within the RF path, calibrate the new antenna installation, and thereby measure a level of interference associated with the external environment from that point forward. A controller commands the antenna calibration retrieving antenna details and RF path gain calibration while measuring local jamming at the receiver input. Should the controller determine a level of jamming effectiveness is present, it offers a user a display of the local jamming levels enabling the user accurate theater decision making regarding the accuracy and availability of desirable signal.
    Type: Application
    Filed: July 23, 2019
    Publication date: July 8, 2021
    Inventors: Karl W. Ulmer, Troy V. Mundt, Gary L. Bachman
  • Patent number: 10481273
    Abstract: A receiver device includes a radio frequency receiver and a processing circuit. The radio frequency receiver receives an incoming signal including a radio frequency satellite signal.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: November 19, 2019
    Assignee: ROCKWELL COLLINS, INC.
    Inventor: Karl W. Ulmer
  • Patent number: 7697919
    Abstract: The present invention is a method and system to mitigate emulator spoofer signals. In an embodiment of the invention, the system of the present invention may be a navigational receiver which may acquire authentic signals in the presence of spoofer signals whereby the authentic navigational signals may be processed to determine a correct position of the receiver. The receiver of the present invention may execute a mitigation method of the present invention whereby characteristics of pairs of signals of received signals may be determined. The mitigation method may also include selection of an authentic signal based upon the characteristics of signal pairs. Characteristics of signal pairs may include relative amplitude, phase and frequency.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: April 13, 2010
    Assignee: Rockwell Collins, Inc.
    Inventors: Donald A. Stratton, Karl W. Ulmer