Coding pattern and apparatus and method for determining a value of at least one mark of a coding pattern
AssigneeAnoto AB
InventorsMats Petter Pettersson, Tomas Edso
Life of this patent
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Abstract
A product provided with a coding pattern which comprises a plurality of marks, each of which represents one of at least two different values, and which further comprises a plurality of nominal positions, each of said plurality of marks being associated with a nominal position and the value of each mark being determined by its location relative to its nominal position. The invention also comprises use of the product.
Claims63
A product provided with a coding pattern, which comprises a raster and a plurality of marks, each of which represents one value of at least two different values, wherein
- said raster comprises raster lines, which meet in raster points to define a plurality of nominal positions;
- each mark being associated with one nominal position of said plurality of nominal positions;
- each mark being displaced from a nominal position along one of the raster lines;
- said value of each mark being represented by a mark location relative to an associated nominal position.
A method for determining a value of at least one mark of a number of marks in a subset of a coding pattern, which comprises a plurality of marks, each of which represents one of at least two different values, wherein each one of said plurality of marks is displaced from a respective nominal position of a plurality of nominal positions and the value of the mark being represented by a mark location relative to the nominal position and wherein each nominal position is defined by a raster point in a raster, which has raster lines meeting in raster points and which is identifiable by means of the marks, said method comprising locating the marks in the subset;
- detecting the raster with the aid of the located marks;
- and determining the mark location of said at least one mark with the aid of the detected raster.
An apparatus for determining a value of at least one mark of a number of marks in a subset of a coding pattern, which comprises a plurality of marks, each of which represents one of at least two different values, wherein each one of said plurality of marks is displaced from a respective nominal position of a plurality of nominal positions and the value of the mark being represented by a mark location relative to the nominal position and wherein each nominal position is defined by a raster point in a raster, which has raster lines meeting in raster points and which is identifiable by means of the marks, said apparatus comprising a processor, which is adapted to locate the marks in the subset;
- detect the raster with the aid of the located marks;
- and determine the mark location of said at least one mark with the aid of the detected raster.
A product provided with a coding pattern, which comprises a plurality of marks, each of which represents one of at least two different values, wherein each one of said plurality of marks is displaced from a respective nominal position of a plurality of nominal positions and the value of the mark being represented by a mark location relative to the nominal position and wherein each nominal position is defined by a raster point in a raster, which has raster lines meeting in raster points and which is identifiable by means of the marks.
Dependencies are inferred from the claim text.