Correction of systematic error in an oversampled analog-to-digit

Details Correction of systematic error in an oversampled analog-to-digit Correction of systematic error in an oversampled analog-to-digit

1989-07-10

1990-08-21

Shoop, Jr., William M.

Coded data generation or conversion

Sample and hold

341118, 341143, 341155, 375 28, H03M 304

Patent

active

049510525

ABSTRACT:
A method for performing oversampled analog-to-digital conversion of an input signal to generate a conversion result signal essentially free of systematic errors in accordance with the invention includes the steps of: performing oversampled analog-to-digital conversion of the input signal to generate a preliminary conversion result signal accompanied by systematic error, performing oversampled analog-to-digital conversion of a zero-valued signal to generate a correction signal essentially consisting of a corresponding systematic error, and differentially combining the correction signal and the preliminary conversion result signal to generate the conversion result essentially free of systematic errors. In a structural embodiment of the invention the systematic error in an oversampled analog-to-digital converter is suppressed by subtracting from the conversion response the response of a similar oversampled analog-to-digital converter to the reference voltage as its analog input signal.

REFERENCES:
patent: 4542354 (1985-09-01), Robinton et al.
patent: 4588981 (1986-05-01), Senn
patent: 4647905 (1987-03-01), Hantke et al.
patent: 4684925 (1987-08-01), Maruta
patent: 4694277 (1987-09-01), Takahashi
patent: 4704600 (1987-11-01), Uchimura et al.
patent: 4775851 (1988-10-01), Borth
patent: 4843390 (1989-06-01), van Bavel et al.
patent: 4851841 (1989-07-01), Sooch
patent: 4862169 (1989-08-01), van Bavel et al.
patent: 4876542 (1989-10-01), van Bavel et al.
patent: 4876543 (1989-10-01), van Bavel
patent: 4876544 (1989-10-01), Kuraishi

Affiliated with

Also associated with

Rating

Correction of systematic error in an oversampled analog-to-digit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Correction of systematic error in an oversampled analog-to-digit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correction of systematic error in an oversampled analog-to-digit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1681529