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:
Jun. 07, 2016
Filed:
Feb. 24, 2014
Applicant:
Azoteq (Pty) Ltd, Paarl, ZA;
Inventors:
Frederick Johannes Bruwer, Paarl, ZA;
Johann Swanepoel, Paarl, ZA;
Dieter Sydney-Charles Mellet, Paarl, ZA;
Douw Gerbrandt Van Der Merwe, Paarl, ZA;
Assignee:
AZOTEQ (PTY) LTD, Paarl, ZA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); G01D 5/24 (2006.01); H03K 17/955 (2006.01); G01D 5/241 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2605 (2013.01); G01D 5/24 (2013.01); G01D 5/241 (2013.01); H03K 17/955 (2013.01); G01D 5/2412 (2013.01); G01D 5/2417 (2013.01); H03K 2217/960725 (2013.01);
Abstract
An integrated circuit compensates for parasitic capacitance in a capacitive measuring apparatus wherein a capacitance measurement is done by repeatedly transferring charge from a capacitor to be measured to a reference capacitor.