Patents by Inventor Juha-Pekka J. Laine

Juha-Pekka J. Laine 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: 11280615
    Abstract: A wide field-of-view celestial sighting system and method are provided. The method includes orienting an imaging optic to collect light from at least one light source, such as at least one celestial body, the imaging optic being secured to a platform. The method further includes selectively collecting light from the at least one celestial body through a selective light collector secured to the platform and positioned in an imaging surface, such as an imaging plane, of the imaging optic. The method further includes combining forward scattered light from the at least one celestial body to provide a combined forward scattered light, and detecting a light intensity of the combined forward scattered light. Systems for performing the method are provided.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: March 22, 2022
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Stephen P. Smith
  • Patent number: 11237003
    Abstract: An image-based navigation system is arranged to obtain a terrain image of a target terrain from one or more image sensors at a low altitude imaging location. The terrain image includes at least one celestial image feature and at least one terrain feature. Map database information stored in at least one hardware memory device is accessed and compared to the at least one celestial image feature and the at least one terrain feature in the terrain image to determine absolute location coordinates of the imaging location.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: February 1, 2022
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Gregory P. Blasche, Benjamin F. Lane, Daniel M. Meiser, Eric T. Hoke, Matthew T. Jamula, Robin M. A. Dawson, Stephen P. Smith
  • Patent number: 11150357
    Abstract: A distributed navigation system architecture includes a plurality of navigation platforms, each having a universal navigation processor configured to communicate with other universal navigation processors, one or more relative navigation systems configured to provide source information to the navigation platforms, an anchor navigation node disposed on one or more of the plurality of navigation platforms in order to form one or more anchor navigation platforms, the anchor navigation node, including an inertial navigation system, a clock, and one or more absolute navigation systems, configured to determine navigation information based on the inertial navigation system, the clock, the one or more absolute navigation systems and optionally the source information, the one or more anchor navigation platforms providing the navigation information to the other navigation platforms, and a navigation processor system in communication with each of the universal navigation processors in order to provide operating informat
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: October 19, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Benjamin F. Lane, William W. Whitacre, Robin Mark Adrian Dawson, Joseph M. Kinast, Cort Nolan Johnson, Gregory P. Blasche, Michael A. Aucoin, Jeffrey D. Jungemann, Peter A. Lewis, Stephen P. Smith
  • Patent number: 11131549
    Abstract: A navigation system includes a monocentric lens and one or more curved image sensor arrays disposed parallel and spaced apart from the lens to capture respective portions, not all, of the field of view of the lens.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: September 28, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Robin Mark Adrian Dawson, Juha-Pekka J. Laine, Murali V. Chaparala, Charles Arant, Matthew T. Jamula
  • Patent number: 11125562
    Abstract: A navigation system includes a monocentric lens and one or more curved image sensor arrays disposed parallel and spaced apart from the lens to capture respective portions, not all, of the field of view of the lens.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 21, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Robin Mark Adrian Dawson, Juha-Pekka J. Laine, Murali V. Chaparala, Charles Arant, Matthew T. Jamula
  • Patent number: 11092427
    Abstract: A system and method for metrology and profilometry using a light field generator are disclosed. For this purpose, a system such as an optical analysis system scans a sample using light, and detects light reflected off a sample in various ways. The system operates different operational modes including a backscatter intensity, a triangulation, and an interferometric mode. For this purpose, the optical analysis system includes one or more optical angle modulation systems, such as surface acoustic wave (SAW) modulators, that emit light, a sample holder, and a scanning system that scans the one or more SAW modulators relative to the sample holder. The system performs tomographic reconstructions of information generated by the scans to create 3D maps/volume datasets of the sample.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 17, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Steven J. Byrnes, Jeffrey A. Korn, Gregg E. Favalora, Juha-Pekka J. Laine, Michael G. Moebius
  • Patent number: 11043132
    Abstract: A navigation system for determining quality and integrity of source information includes one or more data sources that provide the source information, a situation module that provides situation data, an information module that determines an estimate of the quality and an estimate of the integrity of the source information based on the source information and the situation data, an integrity monitor module that determines the integrity and the quality of the source information based on the estimate of the quality and the estimate of the integrity of the source information from the information module, and that validates the source information based on the integrity of the source information and/or the quality of the source information, and a navigation state estimator that determines the navigation information of the one or more objects based on the validated source information and corresponding quality of the source information received from the integrity monitor module.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: June 22, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Michael A. Aucoin, Juha-Pekka J. Laine
  • Publication number: 20210119334
    Abstract: An optical and radio frequency (RF) antenna includes a substrate and a spiral pattern formed on and/or in the substrate from a metallic material. The spiral pattern has a central region and peripheral region surrounding the central region. The central region is configured to transmit and receive an optical signal at optical and/or infrared wavelengths and the peripheral region is configured to transmit and receive an RF signal at RF wavelengths. The central region and the peripheral region are configured such that an optical gain pattern of the central region and an RF gain pattern of the peripheral region are co-boresighted.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 22, 2021
    Inventors: Juha-Pekka J. Laine, Amy E. Duwel, Jacob P. Treadway, Robert Larsen, Steven J. Spector, Benjamin F. Lane, Stephen P. Smith
  • Patent number: 10982959
    Abstract: An ensemble of motion sensors is tested under known conditions to automatically ascertain instrument biases, which are modeled as autoregressive-moving-average (ARMA) processes in order to construct a Kalman filter. The calibration includes motion profiles, temperature profiles and vibration profiles that are operationally significant, i.e., designed by means of covariance analysis or other means to maximize, or at least improve, the observability of the calibration model's structure and coefficients relevant to the prospective application of each sensor.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: April 20, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Simone B. Bortolami, Blaise Morton, Juha-Pekka J. Laine
  • Publication number: 20210108922
    Abstract: A navigation system includes a star camera having a field of view. The star camera includes a sun shields that selectively block portions of the star camera's field of view, to prevent unwanted light, such as light from the sun or moon, reaching image sensors of the star cameras. Some sun shields include x-y stages or r-? stages to selectively position a light blocker to block the unwanted light. Some sun shields use positionable partially overlapping orthogonally polarized filters to block the unwanted light. Some sun shields use counter-wound spiral windows that are selectively rotated to block the unwanted light. Some sun shields a curved surface that defines a plurality of apertures fitted with individual mechanical or electronic shutters.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 15, 2021
    Inventors: Robin Mark Adrian Dawson, Juha-Pekka J. Laine, Benjamin F. Lane, Murali V. Chaparala, Charles F. Arant, Matthew T. Jamula
  • Patent number: 10977953
    Abstract: A probabilistic landmark navigation system is arranged to obtain from one or more image sensors one or more terrain images of a target terrain to be traversed by a vehicle. The terrain images are characterized by multiple individually non-distinctive terrain features without distinctively identifiable landmark features. The non-distinctive terrain features in the one or more terrain images are compared to map database information to make a non-temporal probabilistic determination of absolute location coordinates to associate with the non-distinctive terrain features. Then a navigation path is determined for the vehicle across the target terrain based on the absolute location coordinates.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: April 13, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Simone B. Bortolami, Joseph M. Kinast, Charles F. Arant, Stephen P. Smith
  • Patent number: 10935381
    Abstract: Methods and apparatus automatically determine a location, such as of an aircraft or spacecraft, by matching images of terrain below the craft, as captured by a camera, radar, etc. in the craft, with known or predicted terrain landmark data stored in an electronic data store. A star tracker measures attitude of the camera. An additional navigation aiding sensor provides additional navigational data. Optionally, a rangefinder measures altitude of the camera above the terrain. A navigation filter uses the attitude, the additional navigational data, and optionally the altitude, to resolve attitude, and optionally altitude, ambiguities and thereby avoid location solution errors common in prior art terrain matching navigation systems.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: March 2, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Gregory P. Blasche, Matthew T. Jamula, Paul A. Bohn, Robin Mark Adrian Dawson, Benjamin F. Lane, Eric T. Hoke, Daniel M. Meiser, Joseph M. Kinast, Stephen P. Smith
  • Publication number: 20210033943
    Abstract: An electro-holographic light field generator device is disclosed. The light field generator device has an optical substrate with a waveguide face and an exit face. One or more surface acoustic wave (SAW) optical modulator devices are included within each light field generator device. The SAW devices each include a light input, a waveguide, and a SAW transducer, all configured for guided mode confinement of input light within the waveguide. A leaky mode deflection of a portion of the waveguided light, or diffractive light, impinges upon the exit face. Multiple output optics at the exit face are configured for developing from each of the output optics a radiated exit light from the diffracted light for at least one of the waveguides. An RF controller is configured to control the SAW devices to develop the radiated exit light as a three-dimensional output light field with horizontal parallax and compatible with observer vertical motion.
    Type: Application
    Filed: October 5, 2020
    Publication date: February 4, 2021
    Inventors: Ian W. Frank, Steven J. Byrnes, Juha-Pekka J. Laine, Gregg E. Favalora, Joseph J. Register, Dennis M. Callahan, Michael G. Moebius
  • Patent number: 10901190
    Abstract: A digital camera optically couples a monocentric lens to image sensor arrays, without optical fibers, yet shields the image sensor arrays from stray light. In some digital cameras, baffles are disposed between an outer surface of a monocentric lens and each image sensor array to shield the image sensor arrays from stray light. In other such digital cameras, an opaque mask defines a set of apertures, one aperture per image sensor array, to limit the amount of stray light. Some digital cameras include both masks and baffles.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: January 26, 2021
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Erik L. Waldron, Gregory P. Blasche, Paul Bohn, Robin Mark Adrian Dawson, Walter Foley, Samuel Harrison, Matthew T. Jamula, Juha-Pekka J. Laine, Benjamin F. Lane, Sean McClain, Francis J. Rogomentich, Stephen P. Smith, John James Boyle
  • Patent number: 10795235
    Abstract: An electro-holographic light field generator device is disclosed. The light field generator device has an optical substrate with a waveguide face and an exit face. One or more surface acoustic wave (SAW) optical modulator devices are included within each light field generator device. The SAW devices each include a light input, a waveguide, and a SAW transducer, all configured for guided mode confinement of input light within the waveguide. A leaky mode deflection of a portion of the waveguided light, or diffractive light, impinges upon the exit face. Multiple output optics at the exit face are configured for developing from each of the output optics a radiated exit light from the diffracted light for at least one of the waveguides. An RF controller is configured to control the SAW devices to develop the radiated exit light as a three-dimensional output light field with horizontal parallax and compatible with observer vertical motion.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: October 6, 2020
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Ian W. Frank, Steven J. Byrnes, Juha-Pekka J. Laine, Gregg E. Favalora, Joseph J. Register, Dennis M. Callahan, Michael G. Moebius
  • Publication number: 20200300634
    Abstract: An image-based navigation system is arranged to obtain a terrain image of a target terrain from one or more image sensors at a low altitude imaging location. The terrain image includes at least one celestial image feature and at least one terrain feature. Map database information stored in at least one hardware memory device is accessed and compared to the at least one celestial image feature and the at least one terrain feature in the terrain image to determine absolute location coordinates of the imaging location.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 24, 2020
    Inventors: Juha-Pekka J. Laine, Gregory P. Blasche, Benjamin F. Lane, Daniel M. Meiser, Eric T. Hoke, Matthew T. Jamula, Robin M. A. Dawson, Stephen P. Smith
  • Patent number: 10724871
    Abstract: A visual navigation system includes a compass configured to orient a user in a heading direction, an image sensor configured to capture a series of successive navigation images in the heading direction, one or more of the navigation images having at least two reference markers, data storage memory configured to store the series of successive navigation images, a navigation processor configured to identify at least one principal marker and at least one ancillary marker from the at least two reference markers, the principal marker positioned within a principal angle and the ancillary marker positioned within an ancillary angle, which is greater than the principal angle, and to determine heading direction information based on a position of the at least one principal marker and/or the at least one ancillary marker in the successive navigation images, and a user interface configured to provide the heading direction information to the user.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: July 28, 2020
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Simone B. Bortolami, Jeffrey Korn, Gregory P. Blasche, Matthew T. Jamula, Paul A. Bohn, Robin Mark Adrian Dawson, Benjamin F. Lane, Eric T. Hoke, Daniel M. Meiser, Joseph M. Kinast, Timothy J. McCarthy, Stephen P. Smith
  • Patent number: 10712180
    Abstract: A fiber optical sensor and methods for sensing a physical quantity such as rotation using the same. The sensor has an optical fiber supporting propagation of light that is configured as an interferometer. One or more segments of the optical fiber, where the segments may be non-contiguous, are poled in such a manner that a phase shift in light propagating through the fiber is created in response to application of a voltage to an electrode thereby inducing an electric field across a poled segment of the fiber. A phase modulator comprising multiple poled segments is additionally described. Applying phase-shifting effects differentially across poled segments of optical fibers of an array of optical fibers may also allow for steering an optical beam.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: July 14, 2020
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Richard E. Stoner, Adam J. Saltzman, Timothy J. McCarthy, Stephen P. Smith
  • Patent number: 10641859
    Abstract: A star tracker includes a lens slice, a pixelated image sensor, an ephemeral database and a processor configured to estimate attitude, orientation and/or location of the star tracker based on an image of one or more celestial objects projected by the lens slice onto the pixelated image sensor. The lens slice is smaller and lighter than an optically comparable conventional lens, thereby making the star tracker less voluminous and less massive than conventional star trackers. A lens slice is elongated along one axis. Optical performance along the elongation axis is comparable to that of a conventional circular lens of equal diameter. Although optical performance along a width axis, perpendicular to the elongation axis, of a lens slice can be significantly worse than that of a conventional lens, use of two orthogonal lens slices provides adequate optical performance in both axes, and still saves volume and mass over a conventional lens.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: May 5, 2020
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Juha-Pekka J. Laine, Robin Mark Adrian Dawson, Daniel M. Meiser, Benjamin F. Lane, Eric T. Hoke, Matthew T. Jamula, Stephen P. Smith, Matthew A. Sinclair
  • Publication number: 20200096315
    Abstract: A system and method for metrology and profilometry using a light field generator are disclosed. For this purpose, a system such as an optical analysis system scans a sample using light, and detects light reflected off a sample in various ways. The system operates different operational modes including a backscatter intensity, a triangulation, and an interferometric mode. For this purpose, the optical analysis system includes one or more optical angle modulation systems, such as surface acoustic wave (SAW) modulators, that emit light, a sample holder, and a scanning system that scans the one or more SAW modulators relative to the sample holder. The system performs tomographic reconstructions of information generated by the scans to create 3D maps/volume datasets of the sample.
    Type: Application
    Filed: September 25, 2018
    Publication date: March 26, 2020
    Inventors: Steven J. Byrnes, Jeffrey A. Korn, Gregg E. Favalora, Juha-Pekka J. Laine, Michael G. Moebius