Patents by Inventor Ashish Dhital

Ashish Dhital 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).

  • Correcting position of a mobile device using a mobile reference
    Patent number: 12175557
    Abstract: An augmented-reality device is aligned with an environment using a correction source. A position of a reflector (or other device that is part of a surveying system) coupled with a surveying rod is measured in relation to a correction. A position of a visual design, which is coupled with the surveying rod, is measured in relation to an augmented-reality device, based on an image of the visual design acquired by the augmented-reality device. A coordinate system of the augmented-reality device is aligned with the environment based on the position of the reflector in relation to the correction source, the position of the visual design in relation to the augmented-reality device, and an offset between the reflector and visual design.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: December 24, 2024
    Assignee: Trimble Inc.
    Inventors: Young Jin Lee, Scott Graybill, Matthew Fonken, Ashish Dhital, Jordan Lawver, Kent Kahle
  • Total station re-sectioning using two-dimensional targets
    Patent number: 12152881
    Abstract: Two-dimensional targets, such as AprilTags, are used as control points. AprilTags can be used as cost effective alternatives to traditional prism targets without losing accuracy. AprilTags can be placed precisely around a construction site as “permanent” survey control points, like positioning reflector targets. A robotic total station, equipped with a camera sensor, can image the two-dimensional targets to efficiently resection itself.
    Type: Grant
    Filed: November 4, 2022
    Date of Patent: November 26, 2024
    Assignee: Trimble Inc.
    Inventors: Matthew Fonken, Ashish Dhital, Scott Graybill, Vinod Khare
  • TOTAL STATION RE-SECTIONING USING TWO-DIMENSIONAL TARGETS
    Publication number: 20240151529
    Abstract: Two-dimensional targets, such as AprilTags, are used as control points. AprilTags can be used as cost effective alternatives to traditional prism targets without losing accuracy. AprilTags can be placed precisely around a construction site as “permanent” survey control points, like positioning reflector targets. A robotic total station, equipped with a camera sensor, can image the two-dimensional targets to efficiently resection itself.
    Type: Application
    Filed: November 4, 2022
    Publication date: May 9, 2024
    Applicant: Trimble Inc.
    Inventors: Matthew Fonken, Ashish Dhital, Scott Graybill, Vinod Khare
  • CORRECTING POSITION OF A MOBILE DEVICE USING A MOBILE REFERENCE
    Publication number: 20230351541
    Abstract: An augmented-reality device is aligned with an environment using a correction source. A position of a reflector (or other device that is part of a surveying system) coupled with a surveying rod is measured in relation to a correction. A position of a visual design, which is coupled with the surveying rod, is measured in relation to an augmented-reality device, based on an image of the visual design acquired by the augmented-reality device. A coordinate system of the augmented-reality device is aligned with the environment based on the position of the reflector in relation to the correction source, the position of the visual design in relation to the augmented-reality device, and an offset between the reflector and visual design.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 2, 2023
    Applicant: Trimble Inc.
    Inventors: Young Jin Lee, Scott Graybill, Matthew Fonken, Ashish Dhital, Jordan Lawver, Kent Kahle