Patent Number: 6,297,758

Title: Electrooptical scanning analog-to-digital converter

Abstract: An electrooptical scanning analog-to-digital converter for converting an analog voltage signal from a source to its corresponding digital equivalent in accordance with the invention includes a laser providing a beam having an initial position and multiple deflected positions. The voltage signal forms a deflection input to the laser. A first voltage of the voltage signal provides for the initial position of the beam and multiple other voltages of the voltage signal provide for the plurality of deflected positions of the beam. The invention also includes a phototarget array that has a first phototarget mapped to the first voltage of the voltage signal and multiple incremental phototargets each mapped to one of the multiple other voltages of the voltage signal. The first phototarget and the multiple incremental phototargets are arranged along an axis, which may be in one implementation substantially perpendicular to the initial position of the beam. When the beam is deflected from the initial position that illuminates the first phototarget, to one of the multiple deflected positions by one of the multiple voltages of the voltage signal, at least one of the multiple incremental phototargets is illuminated to provide one of multiple illuminated phototarget array values for conversion of the voltage signal to its corresponding digital equivalent.

Inventors: Sternowski; Robert H. (Cedar Rapids, IA)

Assignee: Rockwell Collins

International Classification: H03M 1/32 (20060101); H03M 1/22 (20060101); H03M 001/20 ()

Expiration Date: 10/02/2018