Patent ID: 11858155
Assignee: AI INCORPORATED
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 18:
19. The electronic razor of claim 1, further comprising at least:
a pair of a first IR transmitter and a first IR receiver, the first IR transmitter positioned adjacent to a first side of a top portion of the hair collection compartment and the first IR receiver positioned adjacent to a second side of the top portion of the hair collection compartment, the second side being directly opposite the first side; and
a pair of a second IR transmitter and a second IR receiver, the second IR transmitter positioned adjacent to a first side of a middle portion of the hair collection compartment and the second IR receiver positioned adjacent to a second side of the middle portion of the hair collection compartment;
wherein:
the processor detects that the hair collection compartment is full when the first receiver does not receive an IR signal from the first transmitter for a predetermined amount of time; and
the processor detects that the hair collection compartment is half full when the second receiver does not receive an IR signal from the second transmitter for a predetermined amount of time.