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:
Mar. 07, 2017
Filed:
Aug. 08, 2012
Seth M. Prentice, Auburn, ME (US);
Julie Lynn Stultz, Scarborough, ME (US);
Yongliang LI, Beijing, CN;
Graham L S Connolly, Raymond, ME (US);
Shawn Barden, Gorham, ME (US);
Seth M. Prentice, Auburn, ME (US);
Julie Lynn Stultz, Scarborough, ME (US);
Yongliang Li, Beijing, CN;
Graham L S Connolly, Raymond, ME (US);
Shawn Barden, Gorham, ME (US);
FAIRCHILD SEMICONDUCTOR CORPORATION, San Jose, CA (US);
Abstract
This document discusses, among other things, a detection system configured to identify a type of a pole of a four-pole audio jack using first and second comparators. The detection system can include a bias circuit configured to bias a detection input coupled to the pole, and first and second comparators configured to compare the detection input to respective first and second thresholds to provide an indication of the type of the pole.