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. 10, 2001
Filed:
May. 31, 2000
Naohisa Hatani, Kuze-gun, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
An analog voltage comparator for suppressing an input voltage offset is described. The voltage comparator includes: a first and a second input comparator, both operating in opposite phases, and third comparator coupled to the two input comparators. The circuit further includes a first switch connected a first capacitor coupled to a negative input of the first comparator and to the positive input of the second comparator for alternatively supplying either an input voltage Vi or a reference voltage Vref to the negative and positive input, respectively. It further includes a second capacitor between the positive input of the first comparator and the negative input of the second comparator; a second switch between the negative input and an output of the first comparator; and a third switch between the negative input and an output of the second comparator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile