Patent ID: 11888013
Assignee: GIGAJOT TECHNOLOGY, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H | IPC H

Claim 0:
1. A sensing device, comprising:
a light sensor to detect light reflected from a surface, the light sensor comprising:
a photodiode including a photowell capable of storing two or more electrons generated in response to detection of the light; and
readout circuitry to generate an output signal that transitions between voltage levels in response to storage of each of the electrons within the photodiode; and

measurement circuitry to generate a value representative of a distance between the sensing device and the surface based on the output signal, the measurement circuitry comprising:
a counter that outputs an incremental sequence of count values; and
a plurality of latching circuits that receive respective input signals generated based on the output signal from the readout circuitry and store respective count values of the incremental sequence from the counter when the respective input signals exceed respective threshold levels.