A method for generating user feedback information from a shave event associated with a user. A shaving razor is provided to user. The shaving razor includes a handle, a hair cutting implement connected to the handle, at least one motion sensor in the handle, a hair cutting implement displacement sensor positioned in the handle, a communication device positioned in the handle and a power source positioned in the handle. The power source powers the at least one motion sensor, the hair cutting implement displacement sensor and the communication device. Shave event data associated with the user during a shave is collected from the at least one motion sensor and the hair cutting implement displacement sensor. The shave event data is processed to generate user feedback information.

A surgical hair clipper includes a clipper body and a blade assembly connected to the clipper body. The blade assembly includes a moveable blade configured to reciprocate to remove hair from a skin area and a blade housing that houses the moveable blade. The blade housing has a guide surface that faces the skin area during a hair removal process. A touch sensor is exposed at the guide surface for contact with the skin area during use. A processor receives a signal from the touch sensor when the touch sensor contacts the skin area. The processor uses logic saved in a memory to instruct a feedback device to provide an indication of skin contact between the touch sensor and the skin area.

Provided is an electronic razor, including: a frame; one or more razor blades detachable from the frame; a razor blade motor to drive the one or more razor blades; one or more sensors; a processor; and a suctioning mechanism positioned below the one or more razor blades, including: a suction fan; a suction fan motor to drive the suction fan; and a hair collection compartment; wherein: the processor learns one or more electronic razor settings based on usage history of the electronic razor. Included is a method for determining one or more electronic razor settings of an electronic razor, including: learning, by a processor of the electronic razor, the one or more electronic razor settings based on a usage history of the electronic razor.

A skin treatment device such as electric shaver, comprising a housing forming an elongated handle for manually moving the device along a body surface, a working head attached to said handle for effecting a treatment to said body surface, at least one detector for detecting at least one treatment parameter of said device, and a feedback indicator for indicating feedback information based on the detected treatment parameter to a user during the personal care treatment. More particularly, such feedback indicator includes a light emitter configured to emit light signals onto a mirror in front of a user.

A drivetrain assembly (100, 200) for a personal care device (10), the drivetrain assembly including a resonator (110) connected to a transmission component (24) configured to transmit oscillations to the removable attachment; and a drive coil (120) configured to oscillate the resonator in a first direction; where the drive coil is configured to generate an installation or removal signal in response to installation or removal of the removable attachment, the installation or removal of the removable attachment generating movement of the resonator in a second direction; and where the drivetrain assembly is configured to communicate the generated signal to a controller.

Provided is an electronic razor, including: a frame; one or more razor blades detachable from the frame; a razor blade motor to drive the one or more razor blades; one or more sensors; a processor; and a suctioning mechanism positioned below the one or more razor blades, including: a suction fan; a suction fan motor to drive the suction fan; and a hair collection compartment.

There is provided a method for operating a personal care device. The method comprises obtaining, using an imaging device, image data relating to a portion of a body of a user; measuring, using the image data, a parameter relating to at least one hair growing from the portion of the body; and determining a position of the portion of the body on the body based on the measured parameter and a predetermined relation between the parameter and the position on the body. A personal care device, a personal care system and a machine-readable medium are also disclosed.

A method of operating an automated hair processing system (10) and the automated hair processing system (10), comprising a portable hand-held hair processing appliance, a hair processing unit arranged at the appliance, and a position monitoring arrangement (30), the arrangement comprising a plurality of position sensors (32) arranged to be attached to a subject (12) whose hair is to be processed, a transmitter (34) that is operatively coupled with at least two position sensors (32) of the plurality of position sensors (32), and a position controller (42) that is arranged to detect a relative orientation between the at least two position sensors (32) of the plurality of position sensors (32) attached to the subject whose hair, and that signals a misorientation state.

The general field of the disclosure herein relates to the design of one or more health related monitoring or maintenance devices. These devices may include but are not limited to devices that monitor and/or maintain the health of users or devices that monitor and/or maintain the health of assets. The devices include oral cleaning devices for maintaining and monitoring the oral health of users, clothing for monitoring the health and fitness of users and charging pads which may monitor the health or assets being charged. Sensors may be integrated in these devices including but not limited to IMUs, thermocouples or oral cleaning devices, IMUs in clothing like shoes or wrist bands, or timers or charging sensors in magnetic surfaces which may cause one or more objects and/or other magnetic surfaces to float when a desired function is achieved.

A device for cutting hair includes a housing, a cutting unit arranged at one end of said housing and having a cutting element. The device includes an electrode, and a voltage source connected to the electrode. The voltage source is configured to provide the electrode with an electrostatic charge so that the electrode is configured to attract charges naturally present in hair cut by the cutting unit without actively charging the cut hair and to consequently draw and/or hold the cut hair away from the cutting element. The hair cutting device also has a sensor, which is arranged to detect a condition relating to the use of the device. The voltage source is activated or deactivated depending on said detected condition.