# How a Local Server Decides to Save or Degrade Digital Content > A system that checks if incoming digital files are authentic, fake, or unknown, and then either saves them, rejects them, or lowers their quality accordingly. - **Patent:** US 9934408 - **Original title:** Secure personal content server - **Owner:** Wistaria Trading Ltd - **Granted:** 2018 - **Status:** Active - **Times cited:** 5 - **Field:** consumer_electronics, telecommunications, software ## What it does This patent describes a Local Content Server (LCS) that acts as a gatekeeper for digital media. When the server receives encrypted or scrambled content, a 'domain processor' inspects it for specific markers of authenticity. If the content is verified as authentic, it is stored in its original form. If the content is flagged as lacking authenticity, the server refuses to store it. If the content is ambiguous—meaning it has no clear authenticity markers—the server automatically degrades the quality of the file before saving it, ensuring that unauthorized or unverified media is less useful. ## What it does NOT cover - Does not cover systems that lack a mechanism for degrading content quality when authenticity is unknown. - Does not cover general-purpose network routers that do not perform content-specific authenticity checks. - Does not cover the specific encryption algorithms used to scramble the data. - Does not cover content that is received in an unencrypted or unscrambled format. ## The clever bit The innovation is the 'degrade' step for ambiguous content. Instead of a binary choice between allowing or blocking, it creates a middle ground that discourages the use of unverified media by reducing its fidelity. ## Real-world examples 1. Digital set-top boxes for cable or satellite television 2. Secure media storage gateways in home entertainment networks 3. Content distribution nodes for subscription-based media services ## Why it matters This technology addresses the challenge of managing digital rights in distributed environments where content might come from unverified sources. It provides a technical framework for automated content moderation and security at the edge of a network, which is critical for protecting intellectual property in media distribution systems. ## Frequently asked questions ### What does How a Local Server Decides to Save or Degrade Digital Content cover? A system that checks if incoming digital files are authentic, fake, or unknown, and then either saves them, rejects them, or lowers their quality accordingly. ### Who owns patent US 9934408? Wistaria Trading Ltd owns this patent, granted in 2018. ### When does this patent expire? This patent is expected to expire on April 3, 2038, when the invention enters the public domain. ### What is patent US 9934408 cited by? This patent has been cited by 5 later patents that build on its ideas. ### What problem does this patent solve? This technology addresses the challenge of managing digital rights in distributed environments where content might come from unverified sources. It provides a technical framework for automated content moderation and security at the edge of a network, which is critical for protecting intellectual property in media distribution systems. ### What does this patent NOT cover? Does not cover systems that lack a mechanism for degrading content quality when authenticity is unknown. **Full plain-English explainer:** https://patentbrief.org/patent/us/9934408/windows-information-protection **Original patent:** https://patents.google.com/patent/US9934408 --- _Source: PatentBrief — https://patentbrief.org. Patent facts are from public records; the plain-English explanation is PatentBrief's._ ## Related patents Semantically similar inventions in the PatentBrief corpus: - [How Cable Networks Manage Virtual Ownership of Digital Movies](https://patentbrief.org/patent/us/9021535/netflix-user-profiles) — A system for cable providers to let users 'own' digital movies on a server instead of buying physical discs, allowing the provider to update that content remotely. - [How Home Gateways Manage Video Streaming Traffic to Prevent Buffering](https://patentbrief.org/patent/us/9479807/netflix-interactive-content-bandersnatch) — A system where home internet gateways report device buffer status to a central server to intelligently manage bandwidth for multiple video streams. - [How to Buy Digital Media Once and Get Multiple Formats](https://patentbrief.org/patent/us/7877330/kindle-e-reader) — A system that lets you pay for a digital file once and download it in different formats from various providers without paying again. - [How Servers Combine Global and Local Content for Personalized Web Displays](https://patentbrief.org/patent/us/6122658/custom-localized-information-in-a-networked-server-for-display-to-an-end-user) — A 1997 Microsoft patent describing how a server can mix general content with specific local details to create a personalized experience for users based on their location or demographics. - [How Distributed Servers Find Data Using Location Pointers](https://patentbrief.org/patent/us/7233978/method-and-apparatus-for-managing-location-information-in-a-network-separate-from-the-data-to-which-the-location-information-pertains) — A system that uses a network of specialized servers to track where specific data is located, allowing computers to find information by asking a server for its address rather than searching every machine.