# How Phones Use Your Voice History to Fix Your Typing > Apple's patent for a system that improves text autocorrection by using a database of words the user has previously spoken into their device. - **Patent:** US 9075783 - **Original title:** Electronic device with text error correction based on voice recognition data - **Owner:** Apple Inc - **Granted:** 2015 - **Status:** Active - **Times cited:** 5 - **Field:** consumer_electronics, software, ai_ml ## What it does This patent describes a way to make autocorrect smarter by linking it to your voice history. When you speak into your phone, the device records those words in a database. Later, when you are typing a text or email, the autocorrection engine checks that database to see if you are likely to be typing a word you have said before. If you make a typo, the system uses your personal vocabulary to guess the correct word, rather than just relying on a generic dictionary. It performs this correction automatically as you type, often triggered by a space character. ## What it does NOT cover - Does not cover autocorrection systems that rely solely on static, pre-installed dictionaries. - Does not cover voice-to-text transcription where the entire message is dictated rather than typed. - Does not cover predictive text systems that only use typing history without incorporating voice input data. - Does not cover hardware-specific keyboard designs or physical key mechanisms. ## The clever bit The innovation is the cross-modal link between voice and text; it treats your microphone as a data source for your keyboard's predictive model, essentially teaching the phone how you talk so it can better understand how you write. ## Real-world examples 1. iOS QuickType keyboard suggestions 2. Personalized language models in modern smartphones 3. Dictation-assisted text prediction ## Why it matters This patent addresses the frustration of generic autocorrect failing to recognize names, slang, or specialized vocabulary that a user frequently speaks. By personalizing the dictionary based on actual speech, it makes mobile communication more efficient. It reflects the industry shift toward context-aware computing where devices learn from user behavior to reduce input errors. ## Frequently asked questions ### What does How Phones Use Your Voice History to Fix Your Typing cover? Apple's patent for a system that improves text autocorrection by using a database of words the user has previously spoken into their device. ### Who owns patent US 9075783? Apple Inc owns this patent, granted in 2015. ### When does this patent expire? This patent is expected to expire on July 7, 2035, when the invention enters the public domain. ### What is patent US 9075783 cited by? This patent has been cited by 5 later patents that build on its ideas. ### What problem does this patent solve? This patent addresses the frustration of generic autocorrect failing to recognize names, slang, or specialized vocabulary that a user frequently speaks. By personalizing the dictionary based on actual speech, it makes mobile communication more efficient. It reflects the industry shift toward context-aware computing where devices learn from user behavior to reduce input errors. ### What does this patent NOT cover? Does not cover autocorrection systems that rely solely on static, pre-installed dictionaries. **Full plain-English explainer:** https://patentbrief.org/patent/us/9075783/alexa-voice-service **Original patent:** https://patents.google.com/patent/US9075783 --- _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 Smartphones Suggest and Correct Words While You Type](https://patentbrief.org/patent/us/8074172/ios-springboard-home-screen) — Apple's patent on a system that displays word suggestions above a touchscreen keyboard, allowing users to accept or reject them with simple taps or keystrokes. - [How Smartphones Suggest Apps Based on Where You Are](https://patentbrief.org/patent/us/10002199/uber-driver-incentives) — Apple's patent for a system that automatically highlights or suggests mobile apps based on your current location or a location you are planning to visit. - [How a Digital Assistant Launches Apps Using Your Voice](https://patentbrief.org/patent/us/9548050/continuity-handoff) — This patent describes how a digital assistant like Siri uses your spoken words and understanding of your conversation to figure out what you want and launch the right app. - [How to Split a Smartphone Keyboard with a Gesture](https://patentbrief.org/patent/us/8587547/device-method-and-graphical-user-interface-for-manipulating-soft-keyboards) — Apple's 2013 patent describes how to split a phone's keyboard in half and move it up the screen with a swipe, making it easier to type with thumbs. - [How Computers Automatically Detect and Act on Data Like Phone Numbers](https://patentbrief.org/patent/us/5946647/system-and-method-for-performing-an-action-on-a-structure-in-computer-generated-data) — Apple's 1999 patent describing how software can automatically recognize patterns like phone numbers or dates in text and offer relevant actions like calling or scheduling.