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. 07, 2011
Filed:
Apr. 30, 2001
Ravi K. Sharma, Hillsboro, OR (US);
Marc D. Miller, Corte Madera, CA (US);
Kenneth L. Levy, Stevenson, WA (US);
Ravi K. Sharma, Hillsboro, OR (US);
Marc D. Miller, Corte Madera, CA (US);
Kenneth L. Levy, Stevenson, WA (US);
Digimarc Corporation, Beaverton, OR (US);
Abstract
The present invention relates generally to access control. One claim recites a method of determining whether to allow access to a location, including: receiving optical data from an optical sensor, the optical data being associated with an object presented to the optical sensor, wherein the object comprises optically-detectable, machine-readable indicia encoded in a predetermined symbology thereon, the indicia including at least an orientation component; determining an orientation of the orientation component; obtaining from a data store a predetermined orientation; and comparing the predetermined orientation with the determined orientation to decide whether to allow access to the location. Of course, other claims are provided as well.