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:
Jan. 08, 2013
Filed:
Jul. 23, 2010
Mark J. Kranz, Hallsville, TX (US);
Mark J. Kranz, Hallsville, TX (US);
Stemco LP, Longview, TX (US);
Abstract
A system determines the revolutions of an object using multiple accelerometers. A difference vector between at least 2 multi-axis accelerometers spaced some distance apart is used to calculate the two-dimensional or three-dimensional centripetal acceleration vector. The centripetal acceleration vector is then used as a rough estimate for the sampling rate for a digital tracking bandpass filter. This bandpass filter extracts angular orientation data leading to a sampling rate and to a revolution totalizer. The number of revolutions of the object, along with a known diameter of an attached object, such as a vehicle wheel, may be used to calculate distance traveled by the object.