Patents by Inventor Oscar Fahrenfeld

Oscar Fahrenfeld 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).

  • System and method for identifying rotary wing aircraft
    Patent number: 11520051
    Abstract: A system and method for detecting a rotary wing aircraft. A return electromagnetic signal, reflected by a rotary wing aircraft, is received through an electromagnetic signal detection apparatus. The aircraft includes a plurality of propeller blades attached to at least one motor. At least one propeller blade has at least one portion with a reflectivity different from other portions. A first time series data of the return electromagnetic signal is received. A second time series data is determined based on the first time series data and a predefined threshold. A characteristic of the second time series data is used to determine whether it corresponds to the known aircraft.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: December 6, 2022
    Assignee: Electronic Warfare associates, Inc.
    Inventors: Carl Guerreri, Oscar Fahrenfeld, Jason Pizzillo, Tom Bonazza, Deborah McNally
  • SYSTEM AND METHOD FOR IDENTIFING ROTARY WING AIRCRAFT
    Publication number: 20200363529
    Abstract: A system and method for detecting a rotary wing aircraft. A return electromagnetic signal, reflected by a rotary wing aircraft, is received through an electromagnetic signal detection apparatus. The aircraft includes a plurality of propeller blades attached to at least one motor. At least one propeller blade has at least one portion with a reflectivity different from other portions. A first time series data of the return electromagnetic signal is received. A second time series data is determined based on the first time series data and a predefined threshold. A characteristic of the second time series data is used to determine whether it corresponds to the known aircraft.
    Type: Application
    Filed: October 16, 2019
    Publication date: November 19, 2020
    Applicant: Electronic Warfare associates, Inc.
    Inventors: Oscar Fahrenfeld, Carl Guerreri, Jason Pizzillo, Tom Bonazza, Deborah McNally
  • Frequency translation device and wireless communication system using the same
    Patent number: 9490749
    Abstract: A frequency translation device includes a transmit circuit including a first frequency converter configured to convert a signal at a first frequency into a signal at a second frequency. A receive circuit includes a second frequency converter configured to convert a signal at the second frequency into a signal at the first frequency. A detector circuit is configured to determine when the frequency translation device is receiving a signal, and to route the signal to the transmit circuit or to the receive circuit.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: November 8, 2016
    Assignee: ELECTRONIC WARFARE ASSOCIATES, INC.
    Inventors: Carl N. Guerreri, Brady H. Warner, Jr., Paul J. Schick, Oscar A. Fahrenfeld
  • FREQUENCY TRANSLATION DEVICE AND WIRELESS COMMUNICATION SYSTEM USING THE SAME
    Publication number: 20150180417
    Abstract: A frequency translation device includes a transmit circuit including a first frequency converter configured to convert a signal at a first frequency into a signal at a second frequency. A receive circuit includes a second frequency converter configured to convert a signal at the second frequency into a signal at the first frequency. A detector circuit is configured to determine when the frequency translation device is receiving a signal, and to route the signal to the transmit circuit or to the receive circuit.
    Type: Application
    Filed: February 27, 2015
    Publication date: June 25, 2015
    Inventors: Carl N. GUERRERI, Brady H. WARNER, JR., Paul J. SCHICK, Oscar A. FAHRENFELD
  • Frequency translation device and wireless communication system using the same
    Patent number: 8977215
    Abstract: A frequency translation device includes a transmit circuit including a first frequency converter configured to convert a signal at a first frequency into a signal at a second frequency. A receive circuit includes a second frequency converter configured to convert a signal at the second frequency into a signal at the first frequency. A detector circuit is configured to determine when the frequency translation device is receiving a signal, and to route the signal to the transmit circuit or to the receive circuit.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: March 10, 2015
    Assignee: Electronic Warfare Associates, Inc.
    Inventors: Carl N. Guerreri, Brady H. Warner, Jr., Paul J. Schick, Oscar A. Fahrenfeld
  • FREQUENCY TRANSLATION DEVICE AND WIRELESS COMMUNICATION SYSTEM USING THE SAME
    Publication number: 20090227203
    Abstract: A frequency translation device includes a transmit circuit including a first frequency converter configured to convert a signal at a first frequency into a signal at a second frequency. A receive circuit includes a second frequency converter configured to convert a signal at the second frequency into a signal at the first frequency. A detector circuit is configured to determine when the frequency translation device is receiving a signal, and to route the signal to the transmit circuit or to the receive circuit.
    Type: Application
    Filed: February 11, 2009
    Publication date: September 10, 2009
    Inventors: Carl N. Guerreri, Brady H. Warner, JR., Paul J. Schick, Oscar A. Fahrenfeld