Accession Number : ADD001345

Title :   Analog to Digital Converter Having Digital Offset Correction.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Vermillion,Ronald G

Report Date : 16 Jul 1974

Pagination or Media Count : 4

Abstract : The patent describes an analog to digital converter which digitizes incoming analog signals and also corrects the digitized value for zero baseline offset. The converter is a ripple counter using an inverted resistor ladder network. The output of the ladder is compared with the incoming analog signal for equality. When equality is sensed the counter is stopped. Offset correction is performed by digitizing a zero level analog signal, determining the error, and storing the error in a register. The stored value of the error is added or substracted arithmetically to subsequent conversions.

Descriptors :   *Analog to digital converters, *Patents, Corrections, Networks, Memory devices

Subject Categories : Computer Hardware
      Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE