The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1987
Filed:
Mar. 04, 1986
Applicant:
Inventor:
Bryan L Sparrowhawk, Everett, WA (US);
Assignee:
John Fluke Mfg. Co., Inc., Everett, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
3403 / ; 324 / ; 324 / ; 3403 / ; 3403 / ; 3403 / ;
Abstract
To eliminate crosstalk between successive measurements of an integrating analog-to-digital converter having MOS linear amplifiers (16) that as a result of ion distribution shift in its input devices gate oxide (24) tends to retain a conversion residue (R), at least one 'dummy' conversion cycle (38) is executed prior to each input signal measurement. The 'dummy' conversion cycle (38) reduces the residue (R) by moving input gate ions into stable positions corresponding to the magnitude of the input signal to be next measured.