{
  "patent_number": "US 12739131",
  "country": "US",
  "title": "How Video Files Use Digital Signatures for Security",
  "original_title": "Video files with embedded digital signatures for data security and authentication, related systems and methods",
  "summary": "This patent describes a system where a display device checks for a valid digital signature within video files to ensure they are authentic and secure before allowing them to play.",
  "what_it_does": "The patent describes a display assembly that includes a processing device connected to both a media player and an electronic display. When the media player sends a video file to be shown on the display, the processing device acts as a gatekeeper. It specifically checks the incoming video file for a valid digital signature. Only if this digital signature is found and verified as valid will the processing device permit the video file to be played on the electronic display. For example, if a smart TV (the processing device) receives a movie file from a connected streaming box (the media player), it will first verify the movie's digital signature. If the signature is legitimate, the movie plays; otherwise, the TV blocks it.",
  "what_it_does_not_cover": [
    "Does not cover security systems that protect non-video files, such as audio-only tracks, images, or text documents.",
    "Does not cover security measures for video files that do not rely on embedded digital signatures for authentication.",
    "Does not cover systems where the digital signature verification occurs solely on the media player before the file is sent to the display assembly.",
    "Does not cover scenarios where a video file is allowed to play even if its digital signature is invalid or missing, perhaps with a warning.",
    "Does not cover physical security features for display devices or media players."
  ],
  "filed": "2025-01-17",
  "granted": "2026-09-15",
  "expires": null,
  "status": "active",
  "holder": null,
  "holder_url": null,
  "inventors": [],
  "times_cited": 0,
  "tags": [
    "consumer_electronics",
    "software",
    "telecommunications",
    "cybersecurity"
  ],
  "abstract": "Display assemblies with data security and authentication features, along with related systems and methods are provided. The display assembly includes a processing device in electronic communication with a media player and an electronic display. The processing device checks for a valid digital signature in files received from the media player for playing at the electronic display. Only if the valid digital signature is found will the processing device allow the received video file to be played at the electronic display.",
  "url": "https://patentbrief.org/patent/us/12739131/video-files-with-embedded-digital-signatures-for-data-security-and",
  "markdown_url": "https://patentbrief.org/patent/us/12739131/video-files-with-embedded-digital-signatures-for-data-security-and/md",
  "google_patents_url": "https://patents.google.com/patent/US12739131",
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}