An oral care system that includes an oral care implement and a tracking attachment. The oral care implement may include a handle and a head. The tracking attachment is detachably coupled to the oral care implement. The tracking attachment may include a first component comprising a first housing having an inner surface that defines a first cavity and a second component comprising a second housing having an inner surface that defines a second cavity. When the tracking attachment is coupled to the oral care implement, a first portion of the handle is positioned within the first cavity and a second portion of the handle is positioned within the second cavity.

A method (300) for determining an orientation of a user's head with an oral care device (10), the method including the steps of: (i) providing (310) an oral care device comprising a device head (16), a sensor (28), and a controller (30); (ii) determining (320) when the device head is located within a calibration area (110) within the user's oral cavity (200); and (iii) estimating (330), by the controller based on an orientation of the device head within the calibration area, an orientation of the user's head.

The power toothbrush includes a handle portion which includes a power drive assembly and a brushhead assembly (32) which includes a brushhead arm (36) and a brush element (38) at a distal end thereof. A V-spring assembly (14) converts the action of the power drive assembly to drive the brushhead assembly in a back-and-forth action. A mounting member (55) at the rear end of the V-spring assembly provides a base for a magnet (56). The V-spring assembly and the brushhead assembly comprises a unit which moves about a pivot point at the forward end of the V-spring assembly, so that the back end of the V-spring assembly is displaced in accordance with pressure applied to the brush member. A Hall effect sensor (58) is mounted within the changing magnetic field produced by the magnet as the rear end of the V-spring assembly is displaced due to pressure on the brushhead. A processor (65) is responsive to the output from the Hall sensor and stored information to produce a signal indicative of the pressure on the brushhead and to provide an indication of when the pressure exceeds a threshold value.

A haircare appliance has an air inlet, an air outlet, and an airflow generator for generating an airflow from the air inlet to the air outlet. The haircare appliance has a fixed body defining the air outlet, and a rotatable member rotatable relative to the fixed body. The air outlet has a first aperture located on a first side of the fixed body, and a second aperture located on a second side of the fixed body opposite to the first side of the fixed body. The rotatable member is rotatable from a first configuration in which the rotatable member permits airflow through the first aperture and blocks airflow through the second aperture, to a second configuration in which the rotatable member permits airflow through the second aperture and blocks airflow through the first aperture. The rotatable member is located internally of the fixed member.

Methods and devices for detecting scrubbing motion during use of a personal hygiene device are provided wherein false scrubbing feedback is eliminated. A method (500) may include receiving (502) motion information data of the personal hygiene device from an inertial measurement unit located within the personal hygiene device, monitoring (504) scrubbing motion data of the personal hygiene device along a first axis, monitoring (506) rotation motion data of the personal hygiene device for excessive rotation around a second axis and a third axis of the personal hygiene device, rejecting (508) a scrubbing detection when excessive rotation is detected, and providing (510) a user operating the personal hygiene device with scrubbing feedback in response to a determination that the motion information data are within predefined parameters of a targeted motion of the personal hygiene device, wherein false scrubbing feedback is eliminated from the scrubbing feedback.

A hair information collection device for providing information relating to hair of a user includes a device body having at least first and second regions configured such that the hair of the user is movable between the first and second regions while in contact with the first and second regions, at least one microphone arranged in or on the device body for detecting a noise during movement of the hair between the first and second regions, a speed sensor circuit arranged in or on the device body and comprising at least one sensor for determining a value representing the speed of the device body, and an electronic circuit device arranged in or on the device body, wherein the electronic circuit device is configured to provide the user with information regarding the hair based on the received detected noise and the speed of the device body.

A system is provided that includes a hair dryer; a hairbrush; and a client device. The hairbrush is configured to sense a characteristic of at least one of the user's hair and the hair dryer, and to transmit information back to the hair dryer based on the sensed characteristic, and the client device is configured to communicate with the hair dryer and provide feedback to the user regarding a user's usage of at least one of the hair dryer and hairbrush based at least in part on sensed characteristic captured by the hairbrush.

A method (400) for determining a user's compliance with a guided cleaning session during use of an oral cleaning device (10) includes the steps of: (i) providing (410) an oral cleaning device including a sensor (28), a guidance generator (46), and a controller (30); (ii) providing (420), by the guidance generator, a guided cleaning session to the user; (iii) generating (430), at a first location during the guided cleaning session, sensor data from the sensor indicating a position or motion of the oral cleaning device; (iv) comparing (440) the generated sensor data to expected sensor data for the first location; and (v) generating (450), based on the comparison, an estimate of the user's compliance with the guided cleaning session.

Tooth brushing monitoring system is disclosed that includes a toothbrush with sensors and a base station. The sensors record data regarding the quality, quantity and location of brushing and the system can analyze the data to provide feedback on the quality of brushing. This feedback provides motivation for users to increase their brushing habits, leading to a decrease in plaque, tooth decay and gingivitis

A method (400) for modifying a user's oral care program. The method includes the steps of: (i) providing (410) a network (200) comprising a first personal care device (10a) in communication with a second personal care device (10b); (ii) cleaning (420) at least a portion of the oral cavity using the first personal care device; (iii) obtaining (440), while cleaning with the first personal care device, sensor data for the at least a portion of the oral cavity; (iv) communicating (450) the obtained sensor data to the second personal care device; and (v) modifying (460), based on the communicated sensor data, a function of the second personal care device.