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:
Jul. 18, 2006
Filed:
Feb. 23, 2004
David J. Benard, Newbury Park, CA (US);
Robert C. Addison, Thousand Oaks, CA (US);
Dong-feng Gu, Thousand Oaks, CA (US);
David J. Benard, Newbury Park, CA (US);
Robert C. Addison, Thousand Oaks, CA (US);
Dong-Feng Gu, Thousand Oaks, CA (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
A plurality of acoustic wave transducers are coupled to a substrate at predetermined spaced apart locations. At least one of the transducers is operative to emit an acoustic wave that propagates along the substrate, with the other transducers operating as receivers of acoustic waves. The receivers are coupled to a control system that is operative to determine a location at which the substrate is perturbed based on time associated with travel of an acoustic wave from a transmitter, to the location of the perturbation, and from the perturbation to each of the respective receivers.