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. 12, 2013
Filed:
Sep. 21, 2010
Applicants:
Norman Jaffe, Vancouver, CA;
Jose Crisologo, Vancouver, CA;
Inventors:
Norman Jaffe, Vancouver, CA;
Jose Crisologo, Vancouver, CA;
Assignee:
Webtech Wireless Inc., Burnaby, British Columbia, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01M 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of sensing vehicle engine ignition status is disclosed wherein samples of only the electrical system voltage levels are used. Sampling voltages that drop sufficiently (in magnitude and quantity over a period of time) will signify an 'engine off' state.