公开(公告)号：US20180250108A1

公开(公告)日：2018-09-06

申请号：US15753082

申请日：2016-08-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： STEPHANUS JACOB GERARDUS TAMMINGA ,  SVEN WOLDBERG ,  DIONISIO MASSINGO NUNES

IPC: A61C17/22 ,  A46B15/00 ,  A61C19/04

Abstract: A method (300) for localizing an oral cleaning device within a user's mouth. The method includes the steps of: (i) providing (310) an oral cleaning device (10) with a motion identifier (28); (ii) estimating (335), based on sensor information received from the motion identifier, a probability of a first location of the oral cleaning device within the user's mouth; (iii) receiving (340) information from the motion identifier regarding a completed transition to a second state within the user's mouth; (iv) comparing (350) the completed transition to a defined set of possible transitions between each of a plurality of possible states within the user's mouth to determine a transition probability; and (v) determining (350), using a probabilistic graphical model comprising the first location probability and the transition probability, a probability of the location of the second state.

公开(公告)号：US20180279763A1

公开(公告)日：2018-10-04

申请号：US15557531

申请日：2016-10-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： STEPHANUS JACOB GERARDUS TAMMINGA ,  DIONISIO MASSINGO NUNES

IPC: A46B15/00 ,  A61C17/22 ,  A61C1/00

CPC classification number: A46B15/0006 ,  A46B15/0004 ,  A46B15/0008 ,  A61C1/0015 ,  A61C17/221

Abstract: A method (300) for localizing an oral cleaning device within a user's mouth. The method includes the steps of: (i) determining (830), based on sensor information received from a motion identifier (28), a first location of the oral cleaning device within the user's mouth; (ii) measuring (850), using sensor information received from the motion identifier, an amount of time elapsing between a start and a stop of a movement of the oral cleaning device within the user's mouth at the first location; (iii) calculating (850), using Fitt's law and the measured elapsed amount of time, the number of teeth the oral cleaning device was displaced during the elapsed amount of time; and (iv) determining (850), based on the first location and the number of teeth the oral cleaning device was displaced during the elapsed amount of time, which of the user's teeth were included in the displacement.