Patent ID: 11941997
Assignee: PLAYBRUSH LIMITED
Field: Other consumer goods (Other fields)
Classification: CPC G  A | IPC A  G

Claim 16:
17. The device according to claim 1, wherein the n-dimensional space is two-dimensional space and the processor is configured to:
calculate at least one angular coordinate from the gravitational components by calculating an angular coordinate from a magnitude of two of the gravitational components;
project the gravitational components and the estimate of brushing dynamics into the two-dimensional space, wherein an angular coordinate of a two-dimensional vector in the two-dimensional space is the angular coordinate calculated from the magnitude of two of the gravitational components of the acceleration data, and a radial coordinate of the two-dimensional vector in the two-dimensional space is the estimate of brushing dynamics;
perform the clustering process on a plurality of two-dimensional vectors formed by projecting subsequent gravitational components and estimates of brushing dynamics into the two-dimensional space to produce clustering results, the clustering results comprising the plurality of clusters each of which represents one brushing area; and
determine the brushing area based on the assignment of subsequent gravitational components and the estimates of brushing dynamics projected into the two-dimensional space to the particular cluster.