# How Vehicles Send Data Without Revealing Who Is Driving > A system that separates a driver's personal identity from vehicle performance data by sending them to a server in separate, disconnected communication sessions. - **Patent:** US RE48406 - **Original title:** USRE48406E1 - Vehicle data collection system, vehicle data collection method, vehicle-mounted device, program, and recording medium - **Owner:** Mitsubishi Heavy Industries Machinery Systems Co Ltd - **Granted:** 2021 - **Status:** Active - **Times cited:** 0 - **Field:** telecommunications, automotive, software ## What it does This system protects driver privacy by splitting vehicle data into two distinct streams. The first stream contains personal identification information (like a driver ID), while the second stream contains vehicle performance data (like speed or engine status) paired with an anonymous identifier. The system forces these streams into separate network sessions, ensuring the server handles them independently. By disconnecting the session after sending performance data and only sending personal data when necessary, the system prevents the server from easily linking a specific driver to every single moment of vehicle activity. ## What it does NOT cover - Does not cover systems that encrypt data within a single session without separating the transmission. - Does not cover methods that use a single, persistent connection to send all data types simultaneously. - Does not cover data collection that does not involve an individual identification component. ## The clever bit The invention uses the act of disconnecting and reconnecting network sessions as a privacy barrier, making it harder for a server to correlate anonymous performance logs with personal identity logs in a single database query. ## Real-world examples 1. Fleet management systems for commercial trucks 2. Usage-based insurance telematics 3. Connected vehicle diagnostic platforms ## Why it matters As vehicles become rolling computers, they generate massive amounts of data about where we go and how we drive. This patent addresses the privacy tension between needing performance data for fleet management and protecting the individual driver's identity from being tracked in real-time. ## Frequently asked questions ### What does How Vehicles Send Data Without Revealing Who Is Driving cover? A system that separates a driver's personal identity from vehicle performance data by sending them to a server in separate, disconnected communication sessions. ### Who owns patent US RE48406? Mitsubishi Heavy Industries Machinery Systems Co Ltd owns this patent, granted in 2021. ### When does this patent expire? This patent is expected to expire on January 26, 2041, when the invention enters the public domain. ### What problem does this patent solve? As vehicles become rolling computers, they generate massive amounts of data about where we go and how we drive. This patent addresses the privacy tension between needing performance data for fleet management and protecting the individual driver's identity from being tracked in real-time. ### What does this patent NOT cover? Does not cover systems that encrypt data within a single session without separating the transmission. **Full plain-English explainer:** https://patentbrief.org/patent/us/RE48406/cftr-corrector-compounds **Original patent:** https://patents.google.com/patent/USRE48406 --- _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 Nielsen Tracks What You Listen to in Your Car](https://patentbrief.org/patent/us/RE45786/gmail) — A system for recording audio in a car and transferring that data to a portable device, like a key fob, which then uploads the information to a central server. - [How Uber Manages Data Connections for Self-Driving Car Fleets](https://patentbrief.org/patent/us/10050760/uber-eats) — A system that splits network traffic for autonomous vehicles by sending heavy data over cheap channels while reserving a highly reliable channel specifically for delivery confirmations. - [How to Send Data Streams Independently Without Connection Overload](https://patentbrief.org/patent/us/7904576/reliable-datagram-via-independent-source-destination-resources) — A method for sending multiple streams of data between devices using independent, reliable paths that keep data in the correct order without needing a constant connection. - [How to Keep Apps Running Without a Constant Internet Connection](https://patentbrief.org/patent/us/7543038/arrangement-and-method-for-impermanent-connectivity) — IBM's method for letting apps think they are connected to a server even when the internet is offline by using a proxy that stores requests and fakes responses. - [How a System Tracks and Transfers Rechargeable Batteries Between Users](https://patentbrief.org/patent/us/20240186800/battery-management-system-battery-management-method-and-program) — This patent describes a system that verifies a rechargeable battery's actual capacity and then updates which user is associated with that specific battery, especially useful for shared or transferable batteries.