Patent · US Active

Window reference trimming for accessory detection

US9654089B2 · kind B2 · utility

0Cited by

2References

20Claims

0Family size

Assignee

FAIRCHILD SEMICONDUCTOR CORPORATION · US

Inventors

Gregory A. Maher · Cape Elizabeth, US
Kenneth O'Brien · Gorham, US

Key dates

Filing date	Nov 21, 2013
Grant date	May 16, 2017
Priority date	—
Expiry date	Nov 24, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH03K5/08
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

This document discusses, among other things, a detection circuit configured to receive an output of a window comparator over a range of input values and to measure a difference between first and second thresholds of the window comparator, and a trim circuit configured to adjust at least one of the first or second thresholds using the measured difference between the first and second thresholds.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.