Patent ID: 11917356
Assignee: ROBERT BOSCH GMBH
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for identifying head-shaking gestures and nodding gestures by using an accelerometer arrangement of a device that is worn on the head, the accelerometer arrangement providing acceleration signals for three linearly independent directions in space, the method comprising the following steps:
calculating a norm of total acceleration using the acceleration signals provided by the accelerometer arrangement; and
identifying a head-shaking gesture and a nodding gesture using the calculated norm of total acceleration;
wherein identification of the head-shaking gesture is performed as a function of a comparison between the calculated norm of total acceleration and a predetermined threshold value, and identification of the nodding gesture being performed as a function of identifying an oscillation of the calculated norm of total acceleration about a predetermined acceleration value.