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. 02, 2012
Filed:
Jan. 27, 2010
Paul Lapstun, Balmain, AU;
Jonathon Leigh Napper, Balmain, AU;
Paul Lapstun, Balmain, AU;
Jonathon Leigh Napper, Balmain, AU;
Silverbrook Research Pty Ltd, Balmain, New South Wales, AU;
Abstract
A substrate having a coding pattern disposed therein or thereon. The coding pattern comprises: a tiling of contiguous grid cells, each grid cell being demarcated by t target elements and having t-fold rotational symmetry, each grid cell containing nt control symbols, each control symbol being encoded by a set of macrodots; and a tiling of contiguous tags, each tag consisting of an array of c grid cells, each tag containing a plurality of data symbols, each data symbol being encoded by a set of macrodots. Any contiguous tag-shaped array of c grid cells contains cnt control symbols, which encode rregistration symbols and rsecond symbols. The rregistration symbols, taken in a defined sequence relative to a physical layout of the tag-shaped array, form a registration codeword of length r. The rsecond symbols form one or more second codewords.