公开(公告)号：US11941997B2

公开(公告)日：2024-03-26

申请号：US16633646

申请日：2018-08-10

Applicant: PLAYBRUSH LIMITED

Inventor： Tolulope Ogunsina ,  Wiktor Grajkowski ,  Matthaus Ittner ,  Paul Varga ,  Patrick Diem

IPC: A46B9/04 ,  A46B15/00 ,  G09B19/00

CPC classification number: G09B19/0084 ,  A46B9/04 ,  A46B15/0002 ,  A46B15/0006 ,  A46B15/0008 ,  A46B15/004 ,  A46B15/0046 ,  G09B19/0076 ,  A46B2200/1066

Abstract: A device for providing an indication of brushing activity of a toothbrush comprises an accelerometer configured to produce acceleration data from motion of the toothbrush, and components for filtering the acceleration data to produce gravitational components and filtering the acceleration data to produce linear acceleration components. The device further comprises a component for projecting the gravitational components and the linear acceleration components into an n-dimensional space, where and for performing a clustering process on the projections of gravitational components and linear acceleration components into n-dimensional space to produce clustering results. The clustering results comprise a plurality of clusters each of which represents a brushing area. A brushing area can be determined based on an assignment of subsequent gravitational components and linear acceleration components of acceleration data to a particular cluster, and feedback provided to a user based on the determination of brushing area, thereby providing indication of brushing activity.

公开(公告)号：US12035800B2

公开(公告)日：2024-07-16

申请号：US17058220

申请日：2019-05-24

Applicant: PLAYBRUSH LIMITED

Inventor： Tolulope Ogunsina ,  Paul Varga ,  Matthaus Ittner ,  Patrick Diem ,  Wiktor Grajkowski

IPC: A46B15/00 ,  G09B19/00

CPC classification number: A46B15/0006 ,  A46B15/0008 ,  G09B19/0084

Abstract: An electric toothbrushing device is disclosed, the device comprising vibration means for producing vibration of a toothbrush head and a controller for controlling the vibration means. The device also comprises a motion sensor for sensing motion of the toothbrushing device to produce motion data, and a signal analysis unit for analysing the motion data to produce a feedback signal. The controller is arranged to adjust the vibration produced by the vibration means in dependence on the feedback signal. Such a configuration can be used to improve the feedback provided to the user and/or help to correct deficiencies in the user's brushing technique.

公开(公告)号：US10825355B2

公开(公告)日：2020-11-03

申请号：US15753370

申请日：2016-03-29

Applicant: PLAYBRUSH LIMITED

Inventor： Paul Varga ,  Matthaus Ittner ,  Tolulope Ogunsina ,  Wiktor Grajkowski ,  Patrick Diem

IPC: G09B19/00 ,  A46B15/00 ,  A46B17/02 ,  A46B5/02 ,  A63F13/211 ,  A63F13/24 ,  A63F13/428 ,  A63F13/85 ,  A63F13/92 ,  G09B5/02

Abstract: A system for determining the orientation of a toothbrush (4), the system comprising an orientation sensor (27) configured for attachment to a toothbrush (4) and one or more processors (29) configured to receive orientation information from the orientation sensor (27). The one or more processors (29) are further configured to determine whether the sensor (27) is in a first orientation (41) or a second orientation (33). The first orientation (41) corresponds to use of the toothbrush (4) on a surface of teeth on the left (42) of a user's mouth. The second orientation (33) corresponds to use of the toothbrush (4) on a surface of teeth on the right (40) of a user's mouth.