Patents Assigned to RF2Digital Inc.
  • Patent number: 12647136
    Abstract: A broadcast signal noise removal apparatus for a vehicle, which decodes a bitstream that is received by an electric vehicle through communication with an external transmission device, then re-encodes the bitstream when an error is detected, then decodes a channel status using a weight, determines whether noise has occurred according to whether the error has been detected, and outputs a bitstream after removing wideband noise of the electric vehicle.
    Type: Grant
    Filed: November 5, 2024
    Date of Patent: June 2, 2026
    Assignee: RF2DIGITAL INC.
    Inventors: Seong Jun Kim, Sung Hyun Yoon
  • Publication number: 20260045961
    Abstract: Disclosed is a preprocessing system for eliminating interference within an adjacent range of analog signals of Hybrid Digital Radio (HDR) and Conventional Digital Radio (CDR). The present embodiment provides a preprocessing system for eliminating interference within an adjacent range of analog signals of HDR and CDR, which is capable of restoring a signal using the symmetry of the analog signals during a process of receiving the analog signals of HDR and CDR, additionally determining whether a signal has noise by utilizing a frequency modulation (FM) phase property of the signal, and eliminating interference within the adjacent range of the analog signals through a single path without beamforming (two or more paths).
    Type: Application
    Filed: November 5, 2024
    Publication date: February 12, 2026
    Applicant: RF2DIGITAL INC.
    Inventors: Seong Jun KIM, Sung Hyun YOON
  • Publication number: 20260025154
    Abstract: Disclosed is a broadcast signal noise removal apparatus for a vehicle. The present embodiment provides a broadcast signal noise removal apparatus for a vehicle, which decodes a bitstream that is received by an electric vehicle through communication with an external transmission device, then re-encodes the bitstream when an error is detected, then decodes a channel status using a weight, determines whether noise has occurred according to whether the error has been detected, and outputs a bitstream after removing wideband noise of the electric vehicle.
    Type: Application
    Filed: November 5, 2024
    Publication date: January 22, 2026
    Applicant: RF2DIGITAL INC.
    Inventors: Seong Jun KIM, Sung Hyun YOON
  • Patent number: 11824573
    Abstract: A beamforming maximum ratio combining (MRC) pre-processing system for adjacency removal of HDR includes a first filter module implemented in a digital radio receiver and allowing only a low side band signal having a frequency lower than a center frequency of a radio signal in a selected channel to pass therethrough and a processor module performing beamforming on the selected channel based on a difference in gain value between the signal that has passed through the filter module and an original signal that has not passed through the filter module.
    Type: Grant
    Filed: May 8, 2023
    Date of Patent: November 21, 2023
    Assignee: RF2Digital Inc.
    Inventors: Seong Jun Kim, Sung Hyun Yoon, Chul Yong Uhm, Tae Hoon Kim, Hyun Chul Shin, Jong Il Park