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:
Apr. 10, 2001
Filed:
Oct. 13, 1998
Applicant:
Inventor:
Eric R. Fossum, La Crescenta, CA (US);
Assignee:
Photobit Corporation, Pasadena, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/06 ;
U.S. Cl.
CPC ...
H03M 1/06 ;
Abstract
Differential non-linearity errors in an A/D converter are corrected by an analog system. The system produces different analog voltages which are used to correct the input voltage to the capacitor. The input voltage is changed by an amount which is effective to correct the CAV to be the same as it would have been if the DNL error had not occurred.