Patents Assigned to D2 LLC
  • Patent number: 12067887
    Abstract: A method and system for developing a flight plan for taking images from an area of interest is disclosed. A series of trajectories is determined. Each trajectory is determined based on a logarithmic spiral curve derived from a range of predetermined basis angles and selecting a constant tangent angle between a radial line from the location of an image sensor to a target location, and a tangent line to the logarithmic spiral curve at the location of the image sensor. A set of trajectories from the series of trajectories is selected. The selected trajectories are scaled to cover the area of interest. The selected trajectories are transformed to coordinates corresponding to the area of interest. The set of scaled and transformed trajectories are stored as the flight plan for taking images of the area of interest.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: August 20, 2024
    Assignee: D2, LLC
    Inventors: James W. Dow, W. Scott Dow
  • Patent number: 11855332
    Abstract: The TIC environmental event sensor is a nickel-sized, ultra-thin circuit assembly, containing an extremely compact array of both environmental sensors and physical sensors, along with local and wireless access to all the sensor data, including BTLE & LoRa, as well as an electronic ink display for limited field access to sensor events in real time. The TIC is designed to capture changes in the sensor data in real time, and then log it for future examination. The most recent change will remain on the device's display. The changes can then be transmitted to a smart phone or tablet via BTLE, networked as an asset via LoRa, or locally scrolled at the device. The TIC is Ideal for tracking any variations in the surrounding conditions of an asset's travel, storage or use.
    Type: Grant
    Filed: March 14, 2022
    Date of Patent: December 26, 2023
    Assignee: TSG R&D2, LLC
    Inventor: Darrel Eugene Self
  • Patent number: 6851247
    Abstract: Composite utility pole core systems wherein at least one core member fits within, but is not bonded to, the composite pole. The core systems provide increased bending strength in a hollow composite pole by preventing collapse of the cross section of the pole, the normal precursor to failure in bending of a tubular structure. The core members may be separately manufactured, and used individually or in plurality, being spaced equally along the length of the pole, or spaced unevenly, using closer spacing in the lower regions of the utility pole where bending stress are likely to be the largest.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: February 8, 2005
    Assignee: D2 LLC
    Inventors: Daryl V. Turner, Dennis M. Danzik