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:
Dec. 10, 2002
Filed:
Jul. 31, 2000
Applicant:
Inventors:
Lawrence J. Marko, Savage, MN (US);
Brian P. Rosengren, Eden Prairie, MN (US);
Neal A. Schumacher, Golden Valley, MN (US);
Assignee:
Banner Engineering Corporation, Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/726 ; G01R 2/708 ; G06K 7/10 ; G08B 1/308 ;
U.S. Cl.
CPC ...
G01R 2/726 ; G01R 2/708 ; G06K 7/10 ; G08B 1/308 ;
Abstract
A system and method are disclosed for detecting the occurrence of an external event. The system eliminates the need for users to adjust amplifier offsets as well as detection thresholds by continually analyzing the signal and optimizing the offset and threshold values accordingly. Additionally, the system detects the external events in a noisy environment when the duration of the events vary by several orders of magnitude by employing cascaded difference filters.