Patent ID: 11885675
Assignee: nan
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An analog to digital conversion device comprising:
a light source having an analog electrical signal input and an optical output at an output optical power level variable as a function of a level of said electrical input;
a waveguide connected to the optical output at an input and emitting over a detection surface of said waveguide a decaying level of optical power in proportion to said output optical power level;
an array of 2n photosensitive circuit elements on a single semiconductor substrate coupled with said surface of said waveguide, each one of the photosensitive circuit elements having a digital output depending on light intensity and positioned to receive a different level of optical power depending on its position in said array; and
an encoder responsive to said digital output from each one of the 2n photosensitive circuit elements and having a digital value output of n-bits.