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:
Jul. 22, 1980
Filed:
Feb. 05, 1979
Joseph E Cunningham, Jr, Boulder, CO (US);
Anthony Grombone, Lafayette, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A circuit providing digital representation of an analog error voltage present as an output of a bridge circuit where the digital representation is independent of supply voltage variations to the bridge circuit. The circuit shows a capacitor designed to ramp from an initial voltage representative of the zero point of the analog error voltage range to a full-scale error voltage in the amount of time it takes for a digital counter to count from zero to full scale. The ramping voltage is compared to the error voltage in order to decode error count whenever the ramping voltage reaches a value just in excess of the error voltage.