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:
Nov. 16, 2004
Filed:
May. 30, 2002
Applicant:
Inventor:
Peter Matthewson, Chelmsford, GB;
Assignee:
Flying Null Limited, Cambridge, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/16 ;
U.S. Cl.
CPC ...
G06K 7/16 ;
Abstract
In a method of interpreting coded information carriers, a plurality of magnetic elements supported by, or incorporated in, a substrate, are interrogated. The relative positions and/or physical dimensions of the magnetic elements represent the information encoded by the information carrier. The relative positions and/or physical dimensions are determined from the relative velocity between an interrogating signal and each of the magnetic elements.