How Sonos Speakers Use Personalized Wake Words to Recognize Different Users
A system that lets multiple people control a shared speaker by using unique voice-trigger words to link their specific music accounts and preferences.
Original patent title: “Voice controlled media playback system based on user profile”
A system that lets multiple people control a shared speaker by using unique voice-trigger words to link their specific music accounts and preferences. Granted to Sonos Inc in 2018 with 23 claims and 15 forward citations.
Key facts
Coverage
What does this patent actually cover?
This patent describes a way for a smart speaker to distinguish between different people in a home by assigning each person a unique 'wakeup word.' When a user speaks their specific word, the system identifies their linked user profile and music service account. It then executes commands—like playing a playlist or adjusting volume—using that specific person's settings and account history. For example, if you say 'Alexa, play jazz' and your partner says 'Hey Sonos, play rock,' the system knows exactly which music account to pull from based on the unique trigger word used.
The gap
What does this patent NOT cover?
- Does not cover voice recognition based on biometric voice printing or vocal characteristics.
- Does not cover systems that rely on a single, universal wake word for all users.
- Does not cover controlling media devices that are not connected to a remote music service account.
These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.
What made this novel
The system uses the wake word itself as a routing mechanism to switch between different cloud-based music service accounts, effectively turning a single hardware device into a multi-user portal without needing complex login screens.
Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.
Where you've seen this
Real-world examples
Sonos smart speakers with integrated voice control
Multi-user smart home audio environments
Why it matters
The bigger picture
This technology addresses the 'shared device' problem in smart homes. By using wake words as a proxy for user identity, it allows households to maintain separate music libraries and preferences on a single piece of hardware, preventing one user's listening habits from polluting another's recommendations.
Filed
April 18, 2016
Granted
May 8, 2018
Market context
Who's building on this
Companies in this space
Sonos continues to refine its multi-user voice integration, while major platform holders like Amazon and Google have developed their own versions of voice-based profile switching. These companies are actively competing to make shared smart speakers feel as personal as a smartphone.
Market impact
This patent helped standardize the expectation that smart home devices should be 'aware' of who is speaking. It pushed the industry away from generic, one-size-fits-all device behavior toward personalized experiences that respect individual user data and account boundaries.
Claim 1 — Plain English
What this patent covers
This patent describes a way for a smart speaker to distinguish between different people in a home by assigning each person a unique 'wakeup word.' When a user speaks their specific word, the system identifies their linked user profile and music service account. It then executes commands—like playing a playlist or adjusting volume—using that specific person's settings and account history. For example, if you say 'Alexa, play jazz' and your partner says 'Hey Sonos, play rock,' the system knows exactly which music account to pull from based on the unique trigger word used.
The clever bit
The system uses the wake word itself as a routing mechanism to switch between different cloud-based music service accounts, effectively turning a single hardware device into a multi-user portal without needing complex login screens.
What it does not cover
- Does not cover voice recognition based on biometric voice printing or vocal characteristics.
- Does not cover systems that rely on a single, universal wake word for all users.
- Does not cover controlling media devices that are not connected to a remote music service account.
Patent timeline
Application submitted to the patent office
Application published, typically 18 months after filing
Patent officially issued
PatentBrief Score
Impact Score
Moderate
Citation count
24/40
Moderately cited
Claim breadth
15/20
Broad claimsclaimsThe numbered statements at the end of a patent that legally define what the inventor owns.Read more →
Recency
10/20
Granted 5–10 years ago
Assignee scale
0/20
Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
Heuristic Value Estimate
What this patent might be worth
$117K – $374K
Midpoint $234K · 9.8 yr remaining · industry ×1.5
Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.
The original legal language
Original claims
23 claims as filed with the patent office.
Concepts involved
Citations
Patent lineage
Cite this patent
Jarvis, S., Butts, C., & Kadri, R. (2018). How Sonos Speakers Use Personalized Wake Words to Recognize Different Users (U.S. Patent No. 9,965,247). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/9965247/icloud-drive
Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.
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Common Questions
Frequently Asked Questions
What does How Sonos Speakers Use Personalized Wake Words to Recognize Different Users cover?
A system that lets multiple people control a shared speaker by using unique voice-trigger words to link their specific music accounts and preferences.
Who owns patent US 9965247?
Sonos Inc owns this patent, granted in 2018.
When does this patent expire?
This patent is expected to expire on May 8, 2038, when the invention enters the public domain.
What is patent US 9965247 cited by?
This patent has been cited by 15 later patents that build on its ideas.
What problem does this patent solve?
This technology addresses the 'shared device' problem in smart homes. By using wake words as a proxy for user identity, it allows households to maintain separate music libraries and preferences on a single piece of hardware, preventing one user's listening habits from polluting another's recommendations.
What does this patent NOT cover?
Does not cover voice recognition based on biometric voice printing or vocal characteristics.
Patent monitoring