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:
Jun. 28, 2011
Filed:
Feb. 02, 2008
Applicants:
Peter Levin, Newtonville, MA (US);
David S. DE Lorenzo, Palo Alto, CA (US);
Per K. Enge, Mountain View, CA (US);
Sherman C. Lo, San Mateo, CA (US);
Inventors:
Peter Levin, Newtonville, MA (US);
David S. De Lorenzo, Palo Alto, CA (US);
Per K. Enge, Mountain View, CA (US);
Sherman C. Lo, San Mateo, CA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 19/21 (2010.01); G01S 19/20 (2010.01);
U.S. Cl.
CPC ...
Abstract
Authentication of a signal, signal, that is provided as having been received from a source at a first global location by comparing it to a signal that is received from the source at a second global location, signal, where signalcontains an unknown signal that is unique to the source, and determining, that signalcontains the same unknown signal that is contained in signal.