Koninklijke Philips Corporation N.v.

Filipe Maia Masculo

Martin John Edwards

Vincent Jeanne

Gerben Kooijman

Wilhelmus Johannes Everardus Evers

Steven Charles Deane

Dionisio Massingo Numes

A method () for determining a position and an orientation of a portion of a handheld personal care device relative to a user's body (), comprising: providing () a handheld personal care device comprising at least one energy source () and at least one detector (), both the at least one energy source and the at least one detector located within the handheld personal care device, the at least one energy source arranged at a first position and having a first orientation within the handheld personal care device; emitting () energy in a three dimensional space surrounding the handheld personal care device; detecting () a portion of the energy emitted; generating () sensor data; extracting () one or more features from the generated sensor data; and estimating () a position and an orientation of a portion of the handheld personal care device relative to the user's body based on the extracted one or more features.

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EINDHOVEN, Netherlands

Filipe Maia Masculo