# How Home Gateways Manage Video Streaming Traffic to Prevent Buffering > A system where home internet gateways report device buffer status to a central server to intelligently manage bandwidth for multiple video streams. - **Patent:** US 9479807 - **Original title:** Gateway-based video client-proxy sub-system for managed delivery of A/V content using fragmented method in a stateful system - **Owner:** Arris Enterprises LLC - **Granted:** 2016 - **Status:** Active - **Times cited:** 24 - **Field:** telecommunications, consumer_electronics, software ## What it does This patent describes a method for a home gateway (like your cable modem or router) to act as a middleman for video streaming. Instead of every device fighting for bandwidth blindly, the gateway monitors the buffer status of each device—essentially how much video data is already stored locally—and sends this information to a central server. The server uses these 'beacons' of data to decide how much bandwidth to give each device. By knowing which devices are about to run out of video data, the system can prioritize traffic to prevent interruptions in playback. ## What it does NOT cover - Does not cover systems that manage bandwidth without using buffer status information from the client device. - Does not cover peer-to-peer video delivery where the gateway is not the primary traffic controller. - Does not cover methods that do not use a stateful server scheduler to aggregate data from multiple gateways. ## The clever bit The system treats the home gateway as an intelligent reporter rather than a dumb pipe, allowing a central network scheduler to make bandwidth allocation decisions based on the actual playback state of the end-user devices. ## Real-world examples 1. Modern cable modem termination systems (CMTS) 2. Fiber-to-the-home (FTTH) optical line terminals 3. IPTV home gateway hardware ## Why it matters As households added more devices streaming high-definition video simultaneously, network congestion became a major problem. This patent provides a technical framework for cable and internet providers to ensure that one device's high-bandwidth request doesn't cause another device's stream to buffer, which is critical for maintaining quality of service in modern IPTV environments. ## Frequently asked questions ### What does How Home Gateways Manage Video Streaming Traffic to Prevent Buffering cover? A system where home internet gateways report device buffer status to a central server to intelligently manage bandwidth for multiple video streams. ### Who owns patent US 9479807? Arris Enterprises LLC owns this patent, granted in 2016. ### When does this patent expire? This patent is expected to expire on October 25, 2036, when the invention enters the public domain. ### What is patent US 9479807 cited by? This patent has been cited by 24 later patents that build on its ideas. ### What problem does this patent solve? As households added more devices streaming high-definition video simultaneously, network congestion became a major problem. This patent provides a technical framework for cable and internet providers to ensure that one device's high-bandwidth request doesn't cause another device's stream to buffer, which is critical for maintaining quality of service in modern IPTV environments. ### What does this patent NOT cover? Does not cover systems that manage bandwidth without using buffer status information from the client device. **Full plain-English explainer:** https://patentbrief.org/patent/us/9479807/netflix-interactive-content-bandersnatch **Original patent:** https://patents.google.com/patent/US9479807 --- _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 to Seamlessly Switch Video Streams for Many Viewers](https://patentbrief.org/patent/us/6732183/video-and-audio-streaming-for-multiple-users) — This patent describes a computer system that allows an administrator or viewer to smoothly switch between different video or audio sources for many people watching at the same time, without interrupting their viewing experience. - [How Networks Keep Video Streams Smooth During Busy Times](https://patentbrief.org/patent/us/9538220/netflix-a-b-testing-framework) — A method for internet providers to automatically balance network resources so that multiple users streaming video simultaneously experience the best possible overall quality. - [How a Local Server Decides to Save or Degrade Digital Content](https://patentbrief.org/patent/us/9934408/windows-information-protection) — 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. - [How Network Providers Subcontract Data Processing Tasks](https://patentbrief.org/patent/us/8606929/aws-lambda) — A method for internet service providers to bundle specific data processing tasks from many users and send them to a third party for efficient handling. - [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.