Apple patent is for adjusting step count to compensate for arm swing

Apple wants the fitness tracking abilities on your Apple Watch to be even more precise. The company has been granted a patent (9,459,118) for “adjusting step count to compensate for arm swing.”

According to the patent, a mobile device can receive a motion signal from a motion sensor on the mobile device. The device can determine a step count based on the motion signal. The Apple Watch can transform the motion signal from a time domain signal into a frequency domain signal. 

The smartwatch can determine a dominant peak and harmonic peaks of the motion signal within a pedestrian frequency band. It can determine that the dominant peak corresponds to an arm swing of a user and adjust the step count to compensate for the arm swing.

Of course, Apple files for — and is granted — lots of patents by the U.S. Patent & Trademark Office. Many are for inventions that never see the light of day. However, you never can tell which ones will materialize in a real product.