Patents Assigned to Raft Technology Ltd.
  • Detection of a skywave symbol
    Patent number: 12621064
    Abstract: A method for detection of a skywave symbol, the method may include receiving, by a skywave propagation receiver, received signals that are within a skywave frequency range that comprises legal subcarriers and illegal subcarriers; and detecting a reception of the skywave symbol based on at least one energy parameter related to at least two out of (a) received signals at the illegal subcarriers, (b) received signals at the legal subcarriers, (c) received signals at any of the subcarriers.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: May 5, 2026
    Assignee: RAFT TECHNOLOGY LTD.
    Inventors: Nir Halay, Tamir Ostfeld, Elad Segalis
  • Sorting-based detection of a skywave symbol
    Patent number: 12375160
    Abstract: A method for detecting a skywave symbol, the method may include (i) receiving, by a skywave receiver, signals of different subcarriers that are within a skywave frequency range that comprises legal subcarriers and illegal subcarriers; (ii) performing sorting iterations to provide a sorted list of signals intensities; and (iii) providing a detection result indicative of a reception of the skywave symbol based on at least some members of the sorted list.
    Type: Grant
    Filed: October 31, 2022
    Date of Patent: July 29, 2025
    Assignee: Raft Technology Ltd.
    Inventors: Jonathan Kushnir, Alon Goren, Ehud Fishler, Elad Segalis, Tamir Ostfeld
  • SORTING-BASED DETECTION OF A SKYWAVE SYMBOL
    Publication number: 20240146388
    Abstract: A method for detecting a skywave symbol, the method may include (i) receiving, by a skywave receiver, signals of different subcarriers that are within a skywave frequency range that comprises legal subcarriers and illegal subcarriers; (ii) performing sorting iterations to provide a sorted list of signals intensities; and (iii) providing a detection result indicative of a reception of the skywave symbol based on at least some members of the sorted list.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 2, 2024
    Applicant: Raft Technology Ltd.
    Inventors: Jonathan Kushnir, Alon Goren, Ehud Fishler, Elad Segalis, Tamir Ostfeld
  • Reconstruction of a skywave symbol
    Patent number: 10785077
    Abstract: A method for symbol reconstruction, the method comprises: receiving, by a skywave propagation receiver, a partial skywave symbol that comprises a first number (N1) of of legal subcarriers out of a set of a second number (N2) of legal subcarriers that represent a given skywave symbol; wherein the given skywave symbol belongs to a group of skywave symbols; wherein each pair of skywave symbols of the group share up to a third number (N3) of legal subcarriers; and selecting the given skywave symbol from the group when N1 exceeds N3.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 22, 2020
    Assignee: Raft Technology Ltd.
    Inventors: Nir Halay, Tamir Ostfeld, Elad Segalis