{
  "patent_number": "US 12332345",
  "country": "US",
  "title": "How Vehicle Radar Systems Correct Phase Errors for Better Object Detection",
  "original_title": "Radar device for vehicle and controlling method thereof",
  "summary": "A radar system for cars that switches between two modes with different pulse speeds to fix phase errors, helping the vehicle more accurately track the direction and speed of objects.",
  "what_it_does": "This radar device uses two distinct operating modes, each with a different pulse repetition interval (the time between radar pulses). By comparing the signals received in these two modes, the system can identify and correct phase errors that occur when a target is moving quickly. Specifically, the signal processor checks if a preset condition is met—such as when the phase difference exceeds a certain threshold or when Doppler frequency limits are crossed—and then applies a phase correction to the second mode's data. This ensures the radar maintains accurate target direction information even in complex driving environments.",
  "what_it_does_not_cover": [
    "Does not cover radar systems that rely on a single, fixed pulse repetition interval.",
    "Does not cover systems that do not perform phase correction between two distinct operational modes.",
    "Does not cover non-radar sensing technologies like LiDAR or ultrasonic sensors.",
    "Does not cover software-only signal processing that is not integrated with a dual-mode transmission antenna setup."
  ],
  "filed": "2022-02-18",
  "granted": "2025-06-17",
  "expires": null,
  "status": "active",
  "holder": "HL Klemove Corp",
  "holder_url": "https://patentbrief.org/company/hl-klemove-corp",
  "inventors": [
    {
      "name": "Han Byul LEE",
      "url": "https://patentbrief.org/inventor/han-byul-lee"
    },
    {
      "name": "Jingu LEE",
      "url": "https://patentbrief.org/inventor/jingu-lee"
    },
    {
      "name": "Jung Hwan Choi",
      "url": "https://patentbrief.org/inventor/jung-hwan-choi"
    },
    {
      "name": "Jae Hyun Han",
      "url": "https://patentbrief.org/inventor/jae-hyun-han"
    }
  ],
  "times_cited": 0,
  "tags": [
    "automotive",
    "telecommunications",
    "semiconductors"
  ],
  "abstract": "The embodiments of the present disclosure relate to a radar device including an antenna unit including a transmission antenna for transmitting a transmission signal and a receiving antenna for receiving a reception signal reflected from a target, a signal processor configured to determine target direction information by using a phase difference between the reception signals received from the respective receiving antennas, and a controller configured to control to perform a first mode and a second mode for transmitting and receiving signals at different pulse repetition intervals, respectively.",
  "url": "https://patentbrief.org/patent/us/12332345/raptor-3",
  "markdown_url": "https://patentbrief.org/patent/us/12332345/raptor-3/md",
  "google_patents_url": "https://patents.google.com/patent/US12332345",
  "relatedPatents": []
}