Brush encoding device for system to promote optimum performance of handheld cosmetic device

1. A personal care appliance comprising:

a brushhead for use in skincare;

an appliance body having a motor assembly for oscillating the brushhead,

wherein the brushhead or a portion of the motor assembly that is configured to oscillate includes a marking; and

a brush encoder configured to

detect the marking, and

determine the oscillation of the brushhead, wherein the marking comprises one or more lines based on the oscillation of the brushhead such that the one or more lines are configured to have an aliasing effect with respect to the oscillation of the brushhead such that when the brushhead is oscillating at a specific frequency, the one or more lines appear to be still based on a sampling rate of the brush encoder.

2. The personal care appliance as in claim 1 , wherein the brush encoder detects at least one of an oscillation angle, an oscillation amplitude, an oscillation frequency, an oscillation phase, an oscillation velocity, and an oscillation acceleration.

3. The personal care appliance as in claim 1 , wherein the brush encoder detects a change in the oscillation.

4. The personal care appliance as in claim 1 , further comprising: circuitry configured to generate appliance performance information responsive to one or more inputs indicative of a change in oscillation amplitude.

5. The personal care appliance as in claim 1 , further comprising: circuitry configured to generate life-time use information responsive to one or more inputs indicative of a speed.

6. The personal care appliance as in claim 1 , further comprising: circuitry configured to generate appliance performance information responsive to one or more inputs indicative of a change in speed.

7. The personal care appliance as in claim 1 , further comprising: circuitry configured to negotiate an authorization protocol between a client device and the personal care appliance.

8. The personal care appliance as in claim 1 , further comprising: circuitry configured to negotiate an authorization protocol between a network entity and the personal care appliance.

9. The personal care appliance as in claim 1 , further comprising: circuitry configured to negotiate and authorize one or more internet protocol (IP) services among a plurality of network entities.

10. The personal care appliance as in claim 1 , wherein the brush encoder is an optical encoder.

11. The personal care appliance as in claim 1 , further comprising: at least one of an alert part, an indicator, and a display configured to provide an output to the user based on the determination of the oscillation.

12. The personal care appliance as in claim 1 , further comprising a touch screen display configured to receive an input from the user.

13. The personal care appliance as in claim 1 , wherein the marking is configured to indicate a type of brushhead.

14. The personal care appliance as in claim 1 , wherein the marking is configured to identify the brushhead uniquely.

15. The personal care appliance as in claim 1 , wherein the brush encoder is configured to track the brushhead usage.

16. The personal care appliance as in claim 1 , wherein the marking is a set of fiducial marks having 294 lines per inch (LPI).

17. A system for testing a personal care appliance comprising:

an inner brushhead for use in skincare including a marking that includes a set of fiducial marks;

an appliance body having a motor assembly for oscillating the inner brushhead;

an outer brushhead configured to attach to the appliance body,

a brush encoder configured to

detect the marking, and determine the oscillation of the brushhead, wherein the marking comprises one or more lines based on the oscillation of the brushhead such that the one or more lines are configured to have an aliasing effect with respect to the oscillation of the brushhead such that when the brushhead is oscillating at a specific frequency, the one or more lines appear to be still based on a sampling rate of the brush encoder; and

a central device in communication with the brush encoder.