Patents by Inventor Ilan Efrat

Ilan Efrat 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: 10488471
    Abstract: System for mapping a magnetic-field including a magnetic-field-transmitter, a freestanding magnetic-field-detector operative to freely move within a volume of interest and acquire measurements of the flux of the magnetic-field at a plurality of poses, a pose-information-acquisition-module for measuring information related to the pose of the magnetic-field-detector and a processor, coupled with the magnetic-field-detector and with said pose-information-acquisition-module and determines pose-related-information respective of each of at least a portion of the magnetic-flux-measurements, according to said information related to the pose of said magnetic-field-detector, the processor further estimating the entire set of parameters of a magnetic-field-model-template according to the magnetic-flux-measurements and the respective pose-related-information the magnetic flux measurements, the processor incorporates the entire set of parameters into said magnetic field model template, thereby determining said magnetic fi
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: November 26, 2019
    Assignee: ELBIT SYSTEMS LTD
    Inventors: Ilan Efrat, Evgeni Gurovich, Guy Mencel, Yoav Ophir, Mark Gandelsman
  • Patent number: 10096254
    Abstract: A method of visually guiding a pilot flying an aircraft using one or more conformal symbols whose position is dynamically updated throughout the guidance is provided herein. The method includes the following stages: determining a desired flight route of an aircraft, based on a user-selected maneuver; presenting to a pilot, on a display, at least one 3D visual symbol that is: (i) earth-space stabilized, and (ii) positioned along a future location along the desired route; computing an updated desired route based on repeatedly updated aircraft flight data that include at least one of: location, speed, and spatial angle, of the aircraft; and repeating the presenting of the at least one 3D visual symbol with its updated location along the updated desired route.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: October 9, 2018
    Assignee: Elbit Systems Ltd.
    Inventors: Ron Nauman, Ilan Efrat, Roee Hartuv, Eyal Halifa, Ofer Klein, Hagay Makov, Eran Galed
  • Patent number: 10095815
    Abstract: A system for mapping a magnetic-field in a volume-of-interest comprising a magnetic-field transmitter, generating a magnetic-field in the volume-of-interest, a freestanding magnetic-field detector operative to freely move within the volume-of-interest, a pose-information-acquisition-module and a processor. The detector acquires measurements of flux of the magnetic-field at a plurality of poses. The pose-information-acquisition-module measures information related to the pose of the detector. The processor determines pose-related-information respective of at least a portion of the measurements according to the information related to the pose of the detector. The processor estimates the entire set of parameters of a magnetic-field model template according to the magnetic-field flux measurement and the respective poses-related-information thereof. The processor incorporates the entire set of parameters into the magnetic-field model template, thereby determining the magnetic-field model.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: October 9, 2018
    Assignee: Elbit Systems Ltd.
    Inventors: Ilan Efrat, Evgeni Gurovich, Guy Mencel, Yoav Ophir, Mark Gandelsman
  • Publication number: 20170115364
    Abstract: System for mapping a magnetic-field including a magnetic-field-transmitter, a freestanding magnetic-field-detector operative to freely move within a volume of interest and acquire measurements of the flux of the magnetic-field at a plurality of poses, a pose-information-acquisition-module for measuring information related to the pose of the magnetic-field-detector and a processor, coupled with the magnetic-field-detector and with said pose-information-acquisition-module and determines pose-related-information respective of each of at least a portion of the magnetic-flux-measurements, according to said information related to the pose of said magnetic-field-detector, the processor further estimating the entire set of parameters of a magnetic-field-model-template according to the magnetic-flux-measurements and the respective pose-related-information the magnetic flux measurements, the processor incorporates the entire set of parameters into said magnetic field model template, thereby determining said magnetic fi
    Type: Application
    Filed: January 4, 2017
    Publication date: April 27, 2017
    Applicant: Elbit Systems Ltd.
    Inventors: Ilan Efrat, Evgeni Gurovich, Guy Mencel, Yoav Ophir, Mark Gandelsman
  • Publication number: 20160349057
    Abstract: A method of pedestrian navigation based on an external positioning system and a Dead Reckoning (DR) system, us provided.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Inventors: Ari ABRAMSON LIANI, Ilan EFRAT, Ilya LEZERSON
  • Publication number: 20150204673
    Abstract: A method of pedestrian navigation, based on an external positioning system and a Dead Reckoning (DR) system, is provided herein. The method may employ the following steps: obtaining external positioning readings from an external positioning source and DR position readings from a pedestrian-carried platform; estimating an external positioning error, based at least partially on the external positioning and the DR position readings; and applying an estimation function to the external position readings, the DR position readings, and the external positioning errors, to yield a corrected estimated position.
    Type: Application
    Filed: April 1, 2015
    Publication date: July 23, 2015
    Inventors: Ari ABRAMSON LIANI, Ilan Efrat, Ilya Leizerson
  • Patent number: 8885177
    Abstract: A medical Wide-Field-Of-View optical-tracking-system for determining the position and orientation of a target-object in a reference coordinate system. The system includes at least three light-emitters, at least one optical-detector and a processor. The processor is coupled with each optical-detector. One optical-detector is a Wide-Field-Of-View optical detector, which acquires an image of the light-emitters within the field-of-view thereof. Each Wide-Field-Of-View optical-detector includes an optical-sensor and two optical-receptors. The processor determines the position and orientation of the target-object in the reference coordinate system according to representations of the light-emitters. Each light-emitter is within the field-of-view of an optical-detector. Each optical-detector and each light-emitter is attached to one of the target-object and a reference-location.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: November 11, 2014
    Assignee: Elbit Systems Ltd.
    Inventors: Rani Ben-Yishai, Adi Charny, Dror Yahav, Shahaf Zommer, Ilan Efrat
  • Publication number: 20140222409
    Abstract: A system for mapping a magnetic-field in a volume-of-interest comprising a magnetic-field transmitter, generating a magnetic-field in the volume-of-interest, a freestanding magnetic-field detector operative to freely move within the volume-of-interest, a pose-information-acquisition-module and a processor. The detector acquires measurements of flux of the magnetic-field at a plurality of poses. The pose-information-acquisition-module measures information related to the pose of the detector. The processor determines pose-related-information respective of at least a portion of the measurements according to the information related to the pose of the detector. The processor estimates the entire set of parameters of a magnetic-field model template according to the magnetic-field flux measurement and the respective poses-related-information thereof. The processor incorporates the entire set of parameters into the magnetic-field model template, thereby determining the magnetic-field model.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 7, 2014
    Applicant: ELBIT SYSTEMS LTD.
    Inventors: Ilan EFRAT, Evgeni GUROVICH, Guy MENCEL
  • Patent number: 8761445
    Abstract: Multi view multi spectral detection and tracking system comprising at lease one imager, at least one of the at least one imager being a multi spectral imager, the at least one imager acquiring at least two detection sequences, and at least two tracking sequences, each sequence including at least one image, each acquired image being associated with respective image attributes, an object detector, coupled with the at least one imager, detecting objects of interest in the scene, according to the detection sequence of images and the respective image attributes, an object tracker coupled with the object detector, the object tracker tracking the objects of interest in the scene and determining dynamic spatial characteristics and dynamic spectral characteristics for each object of interest according to the tracking sequences of images and the respective image attributes and an object classifier, coupled with the object tracker, classifying the objects of interest according to the dynamic spatial characteristics and
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: June 24, 2014
    Assignee: Elbit Systems Ltd.
    Inventors: Hanan Shamir, Liat Berger, Eliyahu Tell, Ilan Efrat
  • Patent number: 8700376
    Abstract: A system for mapping a magnetic field in a volume of interest, the system includes a magnetic field transmitter, generating a magnetic field in the volume of interest, at least one freestanding magnetic field detector, operative to freely move within the volume of interest, the at least one freestanding magnetic field detector acquiring measurements of the flux of the magnetic field at a plurality of poses, and a processor, coupled with the magnetic field detector, the processor re estimating parameters characterizing the magnetic field model according to deviations between the measurements of the flux of the magnetic field and according to predictions of the flux, the predictions being determined according to a stored magnetic field model, thereby, the processor estimating a new magnetic field model.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: April 15, 2014
    Assignee: Elbit Systems Ltd.
    Inventors: Yoav Ophir, Uzi Eichler, Ilan Efrat, Guy Mencel, Mark Gandelsman, Alon Izmirli
  • Publication number: 20140078517
    Abstract: A medical Wide-Field-Of-View optical-tracking-system for determining the position and orientation of a target-object in a reference coordinate system. The system includes at least three light-emitters, at least one optical-detector and a processor. The processor is coupled with each optical-detector. One optical-detector is a Wide-Field-Of-View optical detector, which acquires an image of the light-emitters within the field-of-view thereof. Each Wide-Field-Of-View optical-detector includes an optical-sensor and two optical-receptors. The processor determines the position and orientation of the target-object in the reference coordinate system according to representations of the light-emitters. Each light-emitter is within the field-of-view of an optical-detector. Each optical-detector and each light-emitter is attached to one of the target-object and a reference-location.
    Type: Application
    Filed: November 21, 2013
    Publication date: March 20, 2014
    Applicant: Elbit Systems Ltd.
    Inventors: Rani Ben-Yishai, Adi Charny, Dror Yahav, Shahaf Zommer, Ilan Efrat
  • Patent number: 8593647
    Abstract: An optical tracking system for determining the pose of a moving object in a reference coordinate system includes light emitters, optical detectors, and a pose processor. The processor is coupled with an optical detector and also with a light emitter. The processor determines the object's pose according to detected light. An optical detector and a light emitter are situated at a fixed position in the reference coordinate system. Other ones of the optical detectors and light emitters are attached to the object. One optical detector is a WFOV detector comprising an optical sensor and optical receptors. The receptors are spaced apart and optically coupled with the optical sensor. The sensor senses light received from a light emitter. Each receptor projects a different angular section of a scene on the sensor. The pose processor associates the representation on the sensor, with a respective receptor which projected the light on the sensor.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: November 26, 2013
    Assignee: Elbit Systems Ltd.
    Inventors: Adi Charny, Dror Yahav, Shahaf Zommer, Ilan Efrat, Rani Ben-Yishai
  • Publication number: 20130238237
    Abstract: A method of pedestrian navigation, based on an external positioning system and a Dead Reckoning (DR) system is provided herein. The method may employ the following steps: obtaining external positioning readings from an external positioning source and DR position readings from a pedestrian-carried platform; estimating an external positioning error, based at least partially on the external positioning and the DR position readings; and applying an estimation function to the external position readings, the DR position readings, and the external positioning errors, to yield a corrected estimated position.
    Type: Application
    Filed: October 9, 2011
    Publication date: September 12, 2013
    Inventors: Ari Abramson Liani, Ilan Efrat, Ilya Leizerson
  • Publication number: 20130188173
    Abstract: An optical tracking system for determining the pose of a moving object in a reference coordinate system includes light emitters, optical detectors, and a pose processor. The processor is coupled with an optical detector and also with a light emitter. The processor determines the object's pose according to detected light. An optical detector and a light emitter are situated at a fixed position in the reference coordinate system. Other ones of the optical detectors and light emitters are attached to the object. One optical detector is a (WFOV) detector comprising an optical sensor and optical receptors. The receptors are spaced apart and optically coupled with the optical sensor. The sensor senses light received from a light emitter. Each receptors projects a different angular section of scene on the sensor. The pose processor associates the representation on the sensor, with a respective receptors which projected the light on the sensor.
    Type: Application
    Filed: January 22, 2013
    Publication date: July 25, 2013
    Inventors: Adi Charny, Dror Yahav, Shahaf Zommer, ILAN Efrat, Rani Ben-Yishai
  • Publication number: 20130138275
    Abstract: A method of visually guiding a pilot flying an aircraft using one or more conformal symbols whose position is dynamically updated throughout the guidance is provided herein. The method includes the following stages: determining a desired flight route of an aircraft, based on a user-selected maneuver; presenting to a pilot, on a display, at least one 3D visual symbol that is: (i) earth-space stabilized, and (ii) positioned along a future location along the desired route; computing an updated desired route based on repeatedly updated aircraft flight data that include at least one of: location, speed, and spatial angle, of the aircraft; and repeating the presenting of the at least one 3D visual symbol with its updated location along the updated desired route.
    Type: Application
    Filed: March 3, 2011
    Publication date: May 30, 2013
    Applicant: ELBIT SYSTEMS LTD.
    Inventors: Ron Nauman, Ilan Efrat, Roee Hartuv, Eyal Halifa, Ofer Klein, Hagay Makov, Eran Galed
  • Patent number: 8384912
    Abstract: In an optical tracking system for determining the pose of a moving object in a reference coordinate system, the system including at least one light emitter, at least one optical detector for detecting the light emitted by the at least one light emitter and a pose processor, coupled with the at least one optical detector, and with the at least one light emitter, for determining the pose of the moving object according to the light detected by the at least one optical detector.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: February 26, 2013
    Assignee: Elbit Systems Ltd.
    Inventors: Adi Charny, Dror Yahav, Shahaf Zommer, Ilan Efrat, Rani Ben-Yishai
  • Publication number: 20130034266
    Abstract: Multi view multi spectral detection and tracking system comprising at lease one imager, at least one of the at least one imager being a multi spectral imager, the at least one imager acquiring at least two detection sequences, and at least two tracking sequences, each sequence including at least one image, each acquired image being associated with respective image attributes, an object detector, coupled with the at least one imager, detecting objects of interest in the scene, according to the detection sequence of images and the respective image attributes, an object tracker coupled with the object detector, the object tracker tracking the objects of interest in the scene and determining dynamic spatial characteristics and dynamic spectral characteristics for each object of interest according to the tracking sequences of images and the respective image attributes and an object classifier, coupled with the object tracker, classifying the objects of interest according to the dynamic spatial characteristics and
    Type: Application
    Filed: March 10, 2011
    Publication date: February 7, 2013
    Applicant: Elbit Systems Ltd.
    Inventors: Hanan Shamir, Liat Berger, Eliyahu Tell, Ilan Efrat
  • Patent number: 8212876
    Abstract: A night vision coloring system may color a scene by extracting the spectral signature of each area in a scene and matching the extracted signature with a predetermined database signature and associated color. The system may comprise a temporal or spatial filtering element that may typically allow the capturing of an image reflection through a plurality of spectral bands, thereby extracting the spectral signature of each area in the image. The color associated with the matched database signature may be used to color each area comprising the image.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: July 3, 2012
    Assignee: Elbit Systems Ltd.
    Inventors: Hanan Shamir, Yosi Yaeli, Ilan Efrat
  • Publication number: 20110273722
    Abstract: In an optical tracking system for determining the pose of a moving object in a reference coordinate system, the system including at least one light emitter, at least one optical detector for detecting the light emitted by the at least one light emitter and a pose processor, coupled with the at least one optical detector, and with the at least one light emitter, for determining the pose of the moving object according to the light detected by the at least one optical detector, one of the at least one optical detector and at least one light emitter being situated at a fixed position in the reference coordinate system, and the other of the at least one optical detector and at least one light emitter being attached to the moving object, the at least one optical detector being a Wide Field Of View (WFOV) optical detector, the WFOV optical detector comprising an optical sensor, for sensing light received from at least one of the at least one light emitter and at least two optical receptors, optically coupled with th
    Type: Application
    Filed: September 18, 2008
    Publication date: November 10, 2011
    Applicant: ELBIT SYSTEMS LTD
    Inventors: Adi Charny, Dror Yahav, Shahaf Zommer, Ilan Efrat, Rani Ben-Yishai
  • Publication number: 20110238399
    Abstract: A system for mapping a magnetic field in a volume of interest, the system includes a magnetic field transmitter, generating a magnetic field in the volume of interest, at least one freestanding magnetic field detector, operative to freely move within the volume of interest, the at least one freestanding magnetic field detector acquiring measurements of the flux of the magnetic field at a plurality of poses, and a processor, coupled with the magnetic field detector, the processor re estimating parameters characterizing the magnetic field model according to deviations between the measurements of the flux of the magnetic field and according to predictions of the flux, the predictions being determined according to a stored magnetic field model, thereby, the processor estimating a new magnetic field model.
    Type: Application
    Filed: November 5, 2009
    Publication date: September 29, 2011
    Applicant: ELBIT SYSTEMS LTD.
    Inventors: Yoav Ophir, Uzi Eichler, Ilan Efrat, Guy Mencel, Mark Gandelsman, Alon Izmirli