CODING PATTERN COMPRISING DIRECTION CODES
First Claim
1. A substrate having a coding pattern disposed on a surface thereof, said coding pattern comprising:
- a plurality of target elements defining a target grid, said target grid comprising a plurality of cells, wherein neighboring cells share target elements;
a plurality of data elements contained in each cell; and
a plurality of tags, each tag being defined by at least one cell, each tag comprising respective tag data encoded by data elements,wherein each cell comprises a plurality of registration symbols encoded by a respective set of said data elements, each registration symbol identifying a respective direction component of an orientation such that said plurality of registration symbols in said cell together identify said orientation, wherein said orientation is an orientation of a layout of said tag data with respect to said target grid.
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Accused Products
Abstract
A substrate having a coding pattern disposed on a surface thereof. The coding pattern comprises a plurality of target elements defining a target grid. The target grid comprises a plurality of cells, wherein neighboring cells share target elements. A plurality of data elements are contained in each cell. Tags are defined by a plurality of contiguous cells and each tag comprises respective local tag data encoded by a respective set of the data elements. Each cell comprises one or more translation symbols encoded by a respective set of the data elements. The translation symbols identify a translation of the cell relative to a tag containing the cell.
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Citations
20 Claims
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1. A substrate having a coding pattern disposed on a surface thereof, said coding pattern comprising:
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a plurality of target elements defining a target grid, said target grid comprising a plurality of cells, wherein neighboring cells share target elements; a plurality of data elements contained in each cell; and a plurality of tags, each tag being defined by at least one cell, each tag comprising respective tag data encoded by data elements, wherein each cell comprises a plurality of registration symbols encoded by a respective set of said data elements, each registration symbol identifying a respective direction component of an orientation such that said plurality of registration symbols in said cell together identify said orientation, wherein said orientation is an orientation of a layout of said tag data with respect to said target grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification