HANDHELD PERSONAL CARE DEVICE AND METHOD OF ESTIMATING A POSITION AND/OR AN ORIENTATION OF A HANDHELD PERSONAL DEVICE RELATIVE TO A SUBJECT

• Main Authors: BUIL VINCENTIUS PAULUS, PALERO JONATHAN ALAMBRA, JURNA MARTIN, BOURQUIN YANNYK PARULIAN JULIAN
• Format: Patent
• Language: Chinese; English
• Published: 25.10.2019
• Subjects: CUTTING; HAND CUTTING TOOLS; HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SEVERING; TRANSPORTING

There is provided a handheld personal care device, the device comprising one or more light emitting elements, each configured to emit light; one or more light receiving elements, each configured to receive light and output a respective measurement signal representing measurements of the received light; and a control unit that is configured to estimate a position and/or an orientation of the devicerelative to a subject; wherein the one or more light emitting elements and the one or more light receiving elements are arranged on the device such that, depending on the position and/or the orientation of the device relative to the subject, at least one of the one or more light receiving elements can receive light emitted by at least one of the one or more light emitting elements and reflected by a reflective surface in the environment of the subject; wherein the control unit is configured to estimate the position and/or the orientation of the device relative to the subject based on an analysis of the respective mea