METHOD OF RESETTING A DIGITAL COUNTER FOR A PERSONAL CARE APPLIANCE

    公开(公告)号:US20220329246A1

    公开(公告)日:2022-10-13

    申请号:US17224751

    申请日:2021-04-07

    IPC分类号: H03K21/38 B26B21/40

    摘要: A method of resetting a digital counter for a personal care appliance by sending an electrical output signal from an optical sensor to a control circuit. The electrical output signal is compared to a predetermined value with the control circuit or a change in the electrical output signal from the optical sensor is detected over time. A signal is sent to a consumer user interface by the control circuit based on the electrical output signal and the predetermined value or based on the change in the electrical output signal from the optical sensor. The digital counter is reset based on an input signal from the consumer user interface.

    Personal care appliance
    4.
    发明授权

    公开(公告)号:US11794365B2

    公开(公告)日:2023-10-24

    申请号:US17492070

    申请日:2021-10-01

    摘要: A consumer appliance with a body. A cartridge removably mounted to the body. The cartridge having a surface with a first colored region and a second colored region. A control circuit positioned within the body. A first emitter that projects a first light at the first colored region and a second light at the second colored region. A first light sensor mounted the body that sends a first signal to the control circuit based on a color of light reflected from the first colored region. A second light sensor mounted to the body that sends a second signal to the control circuit based on a color of the light reflected from the second colored region.