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:
Oct. 20, 2009
Filed:
Mar. 16, 2006
Randall Allen Drago, Gaithersburg, MD (US);
Ming-hao Sun, Gaithersburg, MD (US);
Chun-huei Bair, Silver Spring, MD (US);
Kevin J. Powell, Annapolis, MD (US);
Omid Roshan-afshar, Herndon, VA (US);
Theodore Hockey, Mount Airy, MD (US);
Jonathan Pfeifer, North Potomac, MD (US);
Randall Allen Drago, Gaithersburg, MD (US);
Ming-Hao Sun, Gaithersburg, MD (US);
Chun-Huei Bair, Silver Spring, MD (US);
Kevin J. Powell, Annapolis, MD (US);
Omid Roshan-Afshar, Herndon, VA (US);
Theodore Hockey, Mount Airy, MD (US);
Jonathan Pfeifer, North Potomac, MD (US);
Symbol Technologies, Inc., Holtsville, NY (US);
Abstract
Methods, systems, and apparatuses for monitoring and refreshing data stored in radio frequency identification (RFID) tags are described. A voltage margin for data stored in memory of a tag is checked. If the voltage margin has decreased to an undesirable level, the data stored in the tag is refreshed.