Augmenter Patents (Class 342/187)
  • Patent number: 10739451
    Abstract: A system for providing integrated detection and countermeasures against unmanned aerial vehicles include a detecting element, a location determining element and an interdiction element. The detecting element detects an unmanned aerial vehicle in flight in the region of, or approaching, a property, place, event or very important person. The location determining element determines the exact location of the unmanned aerial vehicle. The interdiction element can either direct the unmanned aerial vehicle away from the property, place, event or very important person in a non-destructive manner, or can cause disable the unmanned aerial vehicle in a destructive manner.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: August 11, 2020
    Assignee: XiDrone Systems, Inc.
    Inventors: Dwaine A. Parker, Damon E. Stern, Lawrence S. Pierce
  • Patent number: 10578733
    Abstract: In one example, a device includes a receiver configured to receive a low-power X band radar transmission, and a transmitter operably coupled to the receiver and configured to transmit an X band transmission in response to receiving the low-power X band radar transmission.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: March 3, 2020
    Assignee: Honeywell International Inc.
    Inventor: Brian P. Bunch
  • Patent number: 10122202
    Abstract: Provided is an energy charging apparatus including a transponder configured to transmit and receive radio energy, and a resonator configured to transmit the radio energy transmitted from the transponder to at least one external device and transmit the radio energy received from the at least one external device to the transponder, wherein each of the transponder and the resonator is provided in a form of a single module.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: November 6, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: In Kui Cho, Seong Min Kim, Jung Ick Moon, Je Hoon Yun, Woo Jin Byun, Hyung Do Choi
  • Patent number: 9502765
    Abstract: Embodiments are provided for an agile antenna that beamsteers radio frequency (RF) signals by selectively activating/de-activating tunable elements on radial-waveguides using direct current (DC) switches. The antenna comprises two parallel radial waveguide structures, each comprising a first radial plate, a second radial plate in parallel with the first radial plate, and conductive elements positioned vertically and distributed radially between the two plates. The radial waveguide structure further includes a plurality of quarter RF chokes which are connected to the conductive elements via respective micro-strips and tunable elements. The two parallel radial plates are separated by a height determined according to a desired transmission frequency range for RF signals, a length of the micro-strips, a diameter of the conductive elements, and a clearance space around each one of the conductive elements.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: November 22, 2016
    Inventors: Halim Boutayeb, Paul Robert Watson, Toby Kemp
  • Patent number: 8902073
    Abstract: A card protection device and method of protecting data stored on a contactless smartcard are disclosed. The card protection device may include an antenna, a detector circuit, and an alerting circuit. The antenna may include a magnetic loop that is coupled to a tuning circuit responsive to magnetic field emissions in a frequency band associated with contactless smartcard communications. The detector circuit is coupled to the antenna and may include control logic for attenuating the magnetic field emissions based on smartcard operating characteristics. The detector circuit can store energy associated with the magnetic field emissions and the alerting circuit can provide an audible and/or visual alert using the stored energy. Optionally, the card protection device may be integrated with other smartcard communication functions and/or it may share components with a contactless smartcard.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: December 2, 2014
    Assignee: Cubic Corporation
    Inventor: Thomas Busch-Sorensen
  • Patent number: 6456225
    Abstract: A reflector circuit is provided which responds to illuminating radiation with corresponding output radiation of increased magnitude relative to the illuminating radiation, while also providing a frequency selective limiting characteristic. The circuit comprises an antenna for receiving the illuminating radiation and emitting the corresponding output radiation, a delay line providing a frequency selective limiting and signal storage characteristic and an amplifier assembly. The antenna provides an input signal upon receipt of the illuminating radiation, a portion of which is amplified, frequency selectively filtered and then stored for a period after which it is emitted as the output radiation from the circuit. Switches are incorporated and are operable to counteract spontaneous oscillation within the circuit.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: September 24, 2002
    Assignee: Marconi Caswell Limited
    Inventor: Ian J Forster
  • Patent number: 6067042
    Abstract: A test beacon for a radar system includes: a first antenna for receiving a search signal and transmitting a processed search signal, a second antenna for receiving a tracking signal and transmitting a processed tracking signal, a first signal processor for shifting the phase of the received search signal and adjusting it to a predetermined level, a third signal processor for shifting the phase of the received tracking signal and adjusting it to a predetermined level, a search/tracking signal delaying unit for receiving the search and tracking signals phase-shifted by the first and third signal processors, delaying the signals for a predetermined time period, and distributing and outputting the delayed signals, a second signal processor for receiving the delayed search signal and filtering a frequency band of the search signal and adjusting the signal to a predetermined level, a fourth signal processor for receiving the delayed tracking signal and filtering a frequency band of the tracking signal and adjusting
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: May 23, 2000
    Assignee: SamSung Electronics Co., Ltd.
    Inventor: Man-gyu Lee
  • Patent number: 6061017
    Abstract: In an active radar augmentation system a microwave switch is connected been the receiving antenna and the amplifier. When there is an RF input signal to the receiving antenna of the augmentation system, a square wave timing signal provided to the microwave switch is adjusted to have the microwave switch in an open state during a time period when the coupling or feedback signal from the transmitting antenna of the augmentation system is received by the receiving antenna. The "on-off" timing of the square wave signal is set equal to the external time delay of the feedback signal plus the internal time delay of the RF signal as the RF signal passes through the augmentation system. Under this condition, the feedback signal coupled by antenna leakage arrives at the output of the receiving antenna while the microwave switch is in the open state.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: May 9, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Kenneth Vaccaro, Kenneth Oh, Dean Lucian Mensa
  • Patent number: 5786786
    Abstract: A photonic radar decoy (50) is provided which simulates an aircraft to a radar having an interrogating signal. A plurality of receiving antenna (52, 54, 56, 58, 60) are attached to the decoy (50) with each of the receiving antenna (52, 54, 56, 58, 60) independently capable of receiving the interrogating signal from the interrogating radar system. Each signal received by an antenna (52, 54, 56, 58, 60) is transmitted to a signal combiner and amplifier (82) by delay lines (72, 74, 76, 78, 80). The combiner and amplifier (82) coherently adds the transmitted signals, thereby producing a coherent signal which is amplified and subsequently emitted by a non-directional transmission antenna 106, simulating a dynamic and complex radar signature of an aircraft.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: July 28, 1998
    Assignee: Raytheon Company
    Inventor: James G. Small
  • Patent number: 5751238
    Abstract: An apparatus and method for providing small size, high gain corner reflection of radio frequency signals for use in military and commercial applications. Conventional corner reflector practice is combined with electronic amplifying reflection devices such as the superregenerative amplifier to provide an array of antennas and amplifiers spread over each planar surface of a corner reflector. The specific antenna used may be selected from a plurality of various antenna types depending on the application. As in a conventional corner reflector, the amplified signal is reflected at the same angle and in the opposite direction of the incident signal.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: May 12, 1998
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: David M. Lin
  • Patent number: 5307068
    Abstract: A tunable high-frequency device using a superconductive thin layer with a thickness smaller than the thickness of penetration of a magnetic field is positioned on a dielectric layer. Also included is a means for varying the density of the Cooper pairs of the superconductive thin layer.
    Type: Grant
    Filed: May 23, 1991
    Date of Patent: April 26, 1994
    Assignee: Thomson-CSF
    Inventor: Pierre Hartemann
  • Patent number: 5164734
    Abstract: An active radar target device is disclosed. This device contains a means receiving a radar signal, a means for decreasing the frequency of the radar signal received, at least one means for delaying the reduced frequency radar signal, means for increasing the frequency of the delayed signal, and means of modulating the delayed signal. The modulated and delayed signal is transmitted to an antenna, from which it may be radiated to a radar detector.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: November 17, 1992
    Assignee: Duane G. Fredericks
    Inventors: Duane G. Fredericks, Herbert W. Rosebrock
  • Patent number: 4989007
    Abstract: The invention disclosed relates to gun-launched target projectiles wherein a radar-augmentor is included to increase the radar cross-section of the projectile to simulate on radar, an actual airborne threat such as aircraft and missiles. The radar augmentor comprises a base member, a uniform dielectric lens attached to said base member and a resilient support means between said base member and said lens. The dielectric lens is configured to provide a frontal radar return echo which simulates the actual airborne threat on radar.
    Type: Grant
    Filed: January 28, 1987
    Date of Patent: January 29, 1991
    Assignee: Her Majesty in Right of Canada, as represented by the Minister of National Defence
    Inventors: Clayton G. Coffey, William A. Jones, William H. Friend