Patents by Inventor Javad Ashjaee

Javad Ashjaee 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).

  • Publication number: 20180045834
    Abstract: A handheld GNSS device having a GNSS antenna, memory, and a display receives a first GNSS signal at the GNSS antenna and determines a first position of a point of interest based on the GNSS signal. The first position is stored in memory. A second GNSS signal is received at the GNSS antenna and a second position of the point of interest is determined based on the second GNSS signal. The second position is stored in memory. A third GNSS signal is received at the GNSS antenna and a third position of the point of interest is determined based on the third GNSS signal. The third position is stored in memory. A determination is made whether the first, second, and third positions meet a clustering criteria. In accordance with a determination that the first, second, and third positions meet the clustering criteria, a first cluster position is stored. The first cluster position is based on the first, second, and third positions.
    Type: Application
    Filed: August 9, 2017
    Publication date: February 15, 2018
    Inventor: Javad ASHJAEE
  • Publication number: 20170343678
    Abstract: Embodiments of the present disclosure relate to a magnetic locator for a GNSS device. The magnetic locator includes a magnetic field sensor configured to detect a magnetic field adjacent the magnetic locator; a controller coupled to the magnetic field sensor and configured to receive from the magnetic field sensor measurement data based on the magnetic field and calculate sensor data based on the received measurement data; a communication interface coupled to the controller and adaptable to transmit sensor data received from the controller to the GNSS device; a connector adaptable to connect the magnetic locator to a GNSS antenna of the GNSS device; and a housing.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 30, 2017
    Inventor: Javad ASHJAEE
  • Publication number: 20170293032
    Abstract: A method of determining a position of a GNSS device includes receiving GNSS signals at the GNSS device from a plurality of GNSS satellites. The GNSS device generates GNSS raw data based on the GNSS signals. The GNSS raw data is stored on the GNSS device. The GNSS device receives first correction data and second correction data. The first correction data and the second correction data are generated from data from at least one reference station. Third correction data is determined based on the first correction data, the second correction data, and the GNSS raw data. Position data for the GNSS device is determined based on the third correction data and the GNSS raw data.
    Type: Application
    Filed: April 7, 2017
    Publication date: October 12, 2017
    Inventor: Javad ASHJAEE
  • Patent number: 9748926
    Abstract: Low-noise amplifier (LNA) filters and processes for filtering global navigation satellite system (GNSS) signals are disclosed. The LNA filters can be used to down-convert a received GNSS signal to a lower frequency, filter the GNSS signal at the lower frequency, and up-convert the GNSS signal to the original frequency of the GNSS signal. The down-converted frequency can be selected based on a temperature of the GNSS signal to compensate for shifts in the frequency response of the filter due to temperature changes.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: August 29, 2017
    Assignee: JAVAD GNSS, INC.
    Inventors: Javad Ashjaee, Dmitry Dubrovsky
  • Publication number: 20170219715
    Abstract: A GNSS device includes an antenna configured to receive a first plurality of GNSS signals from a first plurality of GNSS satellites and a second plurality of GNSS signals from a second plurality of GNSS satellites. The GNSS device also includes a communications interface configured to receive correction signals from a GNSS base unit. A processor of the GNSS device is coupled to the antenna and communications interface for processing data from the first plurality of GNSS signals and the second plurality of GNSS signals. Memory of the GNSS deice includes executable instructions for several steps. A first algorithm is executed to determine first position data for the GNSS device based on the first plurality of GNSS signals and a correction signal received at the GNSS device from the GNSS base unit. The first position data is stored memory of the GNSS device. A second algorithm is executed to determine second position data for the GNSS device based on the second plurality of GNSS signals.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 3, 2017
    Inventor: Javad ASHJAEE
  • Patent number: 9720093
    Abstract: Systems and methods for surveying using a GNSS device are provided. In one example method, a GNSS device may be used to determine the location of points along a path and to add those points to a set of points representing the path. When adding each point, the device may determine if the point represents a new point or a previously measured point. If the point is a new point, the device may add the point to the set of points. If the point is a previously measured point, the device may display one or more previously measured points to allow the user to select which previously measured point corresponds to the point currently being measured. The user may select a previously measured point and a point may be added to the set of points using the location of the selected previously measured point.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: August 1, 2017
    Assignee: JAVAD GNSS, INC.
    Inventor: Javad Ashjaee
  • Patent number: 9671497
    Abstract: Systems and methods for synchronizing a global navigation satellite system (GNSS) receiver with a GNSS signal are provided. In one example, a GNSS receiver may include one or more sets of 20 GNSS channels that are each configured to integrate a received GNSS signal over a 20 millisecond accumulation window to output a navigation message bit. The accumulation windows of the 20 GNSS channels may be delayed relative to other windows of the 20 GNSS channels by 1 millisecond. The GNSS receiver may identify one of the 20 GNSS channels having the correct synchronization with the GNSS signal based on the navigation message bits output by the 20 GNSS channels. The identified GNSS channel having the correct synchronization with the GNSS signal may be used to determine a location of the GNSS receiver.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: June 6, 2017
    Assignee: JAVAD GNSS, INC.
    Inventors: Javad Ashjaee, Sergey Yudanov
  • Patent number: 9565875
    Abstract: A cigar cooler is disclosed that includes a housing having an upper surface with a pair of open channels each sized to receive a cigar. The housing includes an open central region for receiving a cooling medium such as ice or a frozen gel. During use, the cigar is placed in an open channel between inhalations to reduce the temperature of the cigar.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: February 14, 2017
    Inventor: Javad Ashjaee
  • Publication number: 20160178754
    Abstract: Determining positions for a set of points using a GNSS rover unit includes receiving a correction signal from a GNSS base unit. The GNSS base unit is located at a fixed point. The correction signal is used to determine a position of a point of the set of points. The position is stored in memory of the GNSS rover unit as position data. These steps are repeated for each point in the set of points. Raw GNSS data of the GNSS base unit is transmitted to the server system. A corrected position of the GNSS base unit is received from the server system. The position data is translated based on the corrected position of the GNSS base unit to produce adjusted position data.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Inventor: Javad ASHJAEE
  • Publication number: 20160178369
    Abstract: Documenting the two-dimensional tilt of a GNSS device includes focusing an image sensor on a location of a level having an appearance that indicates the two-dimensional tilt of the GNSS device. A first image of a scene is captured with the image sensor. The first image includes the level. A portion of the first image is displayed and includes the level on a display of the GNSS device. Position information for the GNSS device is also displayed on the display.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Inventor: Javad ASHJAEE
  • Publication number: 20160178368
    Abstract: A method for using a GNSS device to determine a position of an unknown point includes determining positions of a first point, a second point, and a third point using the GNSS device. A first image is captured of the first point using an image sensor, the image includes the unknown point and at least one of the second point or the third point. A second image is captured from the second point; the second image includes the unknown point and at least one of the second point or the third point. A third image is captured from the third point; the third image includes the unknown point and at least one of the second point or the first point. A position of the unknown point is calculated based on the first, second, and third images and the first, second, and third positions.
    Type: Application
    Filed: December 18, 2015
    Publication date: June 23, 2016
    Inventor: Javad ASHJAEE
  • Publication number: 20160041268
    Abstract: A graphics-aided geodesic device is provided. The device includes an antenna for receiving position data from a plurality of satellites and a receiver coupled to the antenna. The device further includes orientation circuitry for obtaining orientation data. The orientation data represents an orientation of the apparatus with respect to a plane parallel with a horizon. The device further includes positioning circuitry for determining the position of the point of interest based at least on the position data and the orientation data. A function of the graphics-aided geodesic device may be activated in response to a distance sensor detecting that an object is within a threshold distance from the device.
    Type: Application
    Filed: July 30, 2015
    Publication date: February 11, 2016
    Inventor: Javad ASHJAEE
  • Publication number: 20160040914
    Abstract: A cigar cooler is disclosed that includes a housing having an upper surface with a pair of open channels each sized to receive a cigar. The housing includes an open central region for receiving a cooling medium such as ice or a frozen gel. During use, the cigar is placed in an open channel between inhalations to reduce the temperature of the cigar.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 11, 2016
    Inventor: Javad ASHJAEE
  • Patent number: 9250328
    Abstract: A graphics-aided geodesic device is provided. The device may include a display, camera, distance meter, GNSS (Global Navigation Satellite System, including GPS, GLONASS, and Galileo) receiver and antenna, and horizon sensors. Data from the camera and horizon sensors may be displayed to assist the user in positioning the device over a point of interest. In one example, the distance meter may be used to determine the position of the point of interest. In another example, images of the point of interest taken from multiple locations may be used to determine the position of the point of interest.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 2, 2016
    Assignee: Javad GNSS, Inc.
    Inventors: Javad Ashjaee, Mikhail Gribkov, Lev Rapoport
  • Publication number: 20160018530
    Abstract: Systems and methods for performing land surveying using real-time kinematic (RTK) engine verification are provided. In one example, a first set of positions of a GNSS receiver may be determined using each of a plurality of RTK engines. If a number of the plurality of RTK engines that produce a fixed solution is greater than or equal to a threshold value, a position of the GNSS receiver may be determined based on at least a portion of the first set of positions. The determined position may then be stored. This process may be repeated any number of times to produce a desired number of stored positions. In response to the number of stored positions being equal to a minimum value, a final position of the GNSS device may be determined based on the stored positions.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 21, 2016
    Inventor: Javad ASHJAEE
  • Publication number: 20150323676
    Abstract: Systems and methods for synchronizing a global navigation satellite system (GNSS) receiver with a GNSS signal are provided. In one example, a GNSS receiver may include one or more sets of 20 GNSS channels that are each configured to integrate a received GNSS signal over a 20 millisecond accumulation window to output a navigation message bit. The accumulation windows of the 20 GNSS channels may be delayed relative to other windows of the 20 GNSS channels by 1 millisecond. The GNSS receiver may identify one of the 20 GNSS channels having the correct synchronization with the GNSS signal based on the navigation message bits output by the 20 GNSS channels. The identified GNSS channel having the correct synchronization with the GNSS signal may be used to determine a location of the GNSS receiver.
    Type: Application
    Filed: May 9, 2014
    Publication date: November 12, 2015
    Applicant: JAVAD GNSS, INC.
    Inventors: Javad ASHJAEE, Sergey YUDANOV
  • Patent number: 9168946
    Abstract: A computer-implemented method for generating at least one segment of an offset path for a vehicle based on at least one segment of a base path is provided. The at least one segment of the base path is represented by a stored set of data points. The computer-implemented method includes comparing the at least one segment of the base path to a curvature constraint to determine if the at least one segment of the base path violates the curvature constraint. The curvature constraint is based on a characteristic of the vehicle and a desired offset distance from the at least one segment of the base path. The characteristic reflects the vehicle's ability to traverse at least one segment of a path. The method further includes modifying the at least one segment of the base path to satisfy the curvature constraint, if the at least one segment of the base path violates the curvature constraint.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: October 27, 2015
    Assignee: JAVAD GNSS, INC.
    Inventors: Javad Ashjaee, Alexander V. Pesterev, Lev B. Rapoport
  • Publication number: 20150234055
    Abstract: Systems and methods for performing aerial photography and/or photogrammetry are provided. In one example, a path to be followed by an aerial vehicle may be generated based on a path traversed by a ground vehicle. The path to be followed by the aerial vehicle may be a path that is vertically and laterally offset from the path traversed by the ground vehicle. The path traversed by the ground vehicle may be transmitted by the ground vehicle to the aerial vehicle. Alternatively, the aerial vehicle may determine the path traversed by the ground vehicle by identifying the ground vehicle within images generated by the aerial vehicle. While the aerial vehicle traverses the path to be followed, the aerial vehicle may generate and store images of the ground or other points of interest. A photogrammetry process may be performed on an object of interest using the images generated by the aerial vehicle.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 20, 2015
    Applicant: JAVAD GNSS, Inc.
    Inventors: Javad ASHJAEE, Mikhail DRAKIN
  • Patent number: 9103912
    Abstract: Dynamic inter-channel bias calibration of a navigational receiver is provided. A reference signal is propagated through front-end circuitry of the receiver. A delay caused by the propagation of the reference signal through the front-end circuitry is measured. The inter-channel bias of the navigational receiver is reduced using the measured delay associated with the front-end circuitry of the receiver.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: August 11, 2015
    Assignee: Javad GNSS, Inc.
    Inventors: Sergey Yudanov, Vyacheslav Varyukhin, Nikolay Shurygin, Javad Ashjaee
  • Patent number: D756842
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: May 24, 2016
    Assignee: Javad GNSS, Inc.
    Inventor: Javad Ashjaee