High resolution encoding circuit and process for analog to digit

Details High resolution encoding circuit and process for analog to digit High resolution encoding circuit and process for analog to digit

1995-02-28

1997-04-01

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341155, 341160, H03M 114

Patent

active

056170920

ABSTRACT:
An analog-to-digital converter in which an analog input signal is folded by a plurality of folding circuits whose moduli, and hence half folding periods, are mutually prime with respect to one another. Each folding circuit has an associated comparator ladder having one less comparator than the modulus of the folding circuit. The collective output of the ladders, i.e. the states of the comparators in the ladders, uniquely corresponds to input signal magnitude over a dynamic range equal to the product of the folding circuits' moduli, permitting a greater dynamic range for the converter for the number of comparators used.

REFERENCES:
patent: 4584563 (1986-04-01), Bernardson
patent: 5376937 (1994-12-01), Colleran et al.
patent: 5392045 (1995-02-01), Yee
High Resolution Encoding Process for an Integrated Optical A/D Converter . 1994 Phillip E Pace, David Styer.
P.E. Pace et al., High-Resolution Encoding Process for an Integrated Optical Analog-To-Digital Converter, Optical Engineering, vol. 33, No. 8 (Aug., 1994).

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