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. 29, 2011
Filed:
Jan. 04, 2010
Applicants:
Joseph A. Paradiso, Medford, MA (US);
Che King Leo, Cambridge, MA (US);
Nisha Checka, Cambridge, MA (US);
Inventors:
Joseph A. Paradiso, Medford, MA (US);
Che King Leo, Cambridge, MA (US);
Nisha Checka, Cambridge, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/043 (2006.01);
U.S. Cl.
CPC ...
Abstract
Surface impacts are located and characterized based on an acoustic signal produced by the impact despite the presence of signal dispersion. Acoustic signals from the surface may be compared to acoustic signals detected external to the surface in order to eliminate spurious impact sensing due to external sounds. Low-frequency acoustic signals may be sensed and identified as explicit hard 'bangs' which are of limited utility for pointing and tracking applications.