US 2,005,172,311 · Filed 2004-06-18
How Nokia's Motion-Tracking Patent Built the Fitness Tracker Blueprint
Imagine a small device you clip to your body that senses when you move and figures out what activity you're doing and how hard you're working. This patent describes exactly that — a wearable gadget with motion sensors that can measure your intensity during exercise or any physical movement.
The plain-English version
What it protects
The patent covers a wearable terminal that attaches to your body via a strap, belt, or clip and uses acceleration sensors to detect your movements. What's protected here is the combination of those sensors feeding movement data into a controller that runs an activity detection application, which then calculates intensity values based on how fast and forcefully you're moving. Any device that uses this exact approach to monitor activity intensity would step on this patent's claims.
Why it matters
This patent captures the core mechanics behind modern fitness trackers and smartwatches — the idea of using motion sensors to automatically recognize what you're doing and measure how hard you're pushing. Filed in 2004 by Nokia, it represents an early effort to lock down the fundamental technology that would eventually power devices like Fitbit, Apple Watch, and Garmin wearables. The patent establishes who owns the basic concept of acceleration-based activity detection.
Real-world use
Every time you put on a fitness tracker and it automatically recognizes that you're running or walking and displays your intensity or heart rate effort, you're using technology this patent describes.
Original USPTO abstract
A terminal is provided for monitoring at least one activity of a user. The terminal includes a connecting means, at least one acceleration sensor and a controller. The connecting means, which can include a strap, belt, clip, lanyard or the like, is adapted for attaching the terminal onto a body of the user. The acceleration sensor(s) are capable of measuring and providing acceleration measurement signals representative of movement of the user in performing an activity. And the controller is capable of operating an activity detection application, which is capable of receiving at least a portion of the measurement signals. The activity detection application is also capable of determining at least one value related to the user performing the selected activity based upon the acceleration measurement signals, the at least one value being an intensity value representing an intensity with which the user performs the activity.
Patent details
- Publication number
- US 2,005,172,311
- Filing date
- 2004-06-18
- Grant date
- Application — not yet granted
- Assignee
- Nokia Corporation
- Inventor(s)
- HJELT KARI, FRIMAN JONNI, JARVI JYRKI, NAUKKARINEN SANTTU, OLLIKAINEN JARKKO
- CPC class
- H04H60/33
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