Analog to digital converter without zero drift

Details Analog to digital converter without zero drift Analog to digital converter without zero drift

1983-03-01

1986-08-26

Sloyan, T. J.

Communications: electrical

Audible indication

Percussion-type sound producer

324 99D, 340347AD, 340347CC, 340347M, H03K 1302

Patent

active

046085530

ABSTRACT:
The conversion is effected by adding equal and opposite reference voltages to the analog signal to provide two first output voltage levels. The voltage difference between these levels is converted into a first given number of pulses. The polarity of the analog signal is then reversed during the second half of the cycle so as to be subtracted from the reference voltages for providing two second output voltage levels. The voltage difference between these levels is converted into a second given number of pulses. A function of the first and second number of pulses provides a numerical count directly proportional to the analog signal with all zero drift eliminated. A second conversion can be made to provide a digital read-out which is free from both zero drift and span drift.

REFERENCES:
patent: 3534257 (1970-10-01), Charap et al.
patent: 3750142 (1973-07-01), Barnes et al.
patent: 3940759 (1976-02-01), Zitelli et al.
patent: 4390864 (1983-06-01), Ormond

Affiliated with

Also associated with

Rating

Analog to digital converter without zero drift does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog to digital converter without zero drift, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog to digital converter without zero drift will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2314383