Machine readable data
First Claim
1. Data channel of the background containing symbolic data marks, which include aggregate, constant number of dark elements in the whole record, which is characterized by:
- recording medium, such as paper or other recording print carrier, data symbolic marks printed on record medium arranged into a grid on positions with periodically repeating properties in both horizontal and vertical directions, textual or graphical print printed in overlay with data symbolic marks, elements of modulation of the record by graphic pattern.
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Accused Products
Abstract
The invention is concerned with data channel of the background containing symbolic data marks, which include aggregate, constant number of dark elements in the whole record where the core is the recording medium such as paper or other carrier of the symbolic data marks printed on this media arranged into a grid on positions with periodically repeating properties in both horizontal and vertical directions, textual or graphical print, printed in overlay with data symbolic marks, elements of modulation of the record by graphic pattern. The invention relates to the system of creation and method of preparation of the data channel of the background.
49 Citations
15 Claims
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1. Data channel of the background containing symbolic data marks, which include aggregate, constant number of dark elements in the whole record, which is characterized by:
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recording medium, such as paper or other recording print carrier, data symbolic marks printed on record medium arranged into a grid on positions with periodically repeating properties in both horizontal and vertical directions, textual or graphical print printed in overlay with data symbolic marks, elements of modulation of the record by graphic pattern.
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2. System for data recording on paper, or other carrier, and reading machine readable marks, which is characterized by:
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means for transforming and formatting source data to a sequence of digital data embedded in individual symbolic data marks;
means for coding such data sequence onto a format consisting of a description of a symbolic data mark in the language of the used printing method;
means dedicated for printing a record on paper or other printing substrate, means for reading data symbolic marks from paper or other carrier into a computer;
means for transforming the read data of the data sequence format which are represented by individual symbolic data marks;
means for transforming into the format of data which served as a source for recording symbolic data marks or to other chosen format;
means for modulation of marks by a source graphic pattern.
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3. Method of recording, determination of the location and number of dark elements for coding dual represented statuses in a symbolic data mark for data recording and reading on paper or other carrier of such mark, wherein these dark elements represent on an area available for one symbolic mark two statuses with constant number of dark elements, which change only position, is characterized by:
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determination of the axes of symmetry of a two-dimensional area dedicated for a symmetric data mark and determination of a coordinate system in regard to these symmetry axes, determination of the aggregate area of the mark, i.e. the number of dark elements used for coding two statuses for data representation on area allocated for the symbolic data mark, determination of the maximal allowed distance of dark points from a line of equal distance from both the axes of symmetry and minimal allowed distance from each of the symmetry axes, calculation of the aggregate of the absolute values of both co-ordinates for each possible location of a dark element, determination of areas of maximal distance from both the axes in compliance with the aggregate and allowed maximal and minimal distances from axes, recording one half of the maximal allowed number of elements in one of the areas determined in previous step within the limits of the area allocated for the symbolic data mark as one half of a symbol representing one of the two statuses which could be represented by the symbolic data mark, recording the second half of the maximal allowed number of elements in the next of the determined areas on the opposite side of both the symmetry axes, within the limits of the area allocated for the symbolic data mark as the second half of the symbol representing one of the two statuses which could be represented by the symbolic data mark, choosing the locations of dark elements located symmetrically to the second symmetry axis with respect to the recorded elements as locations of elements representing the second status of two statuses representing the symmetric data mark, determination of the areas of maximal distance from each of the symmetry axes individually, recording the maximal allowed number of elements in one of the determined areas within the limits of the area allocated for the symbolic data mark as a symbol representing one of the two statuses which could be represented by the symbolic data mark, choosing the locations of dark elements located symmetrically to such an axis of symmetry that does not intersect the chosen locations of dark elements with respect to the recorded elements as the locations of the elements representing the second status of the two statuses represented by the symbolic data mark. - View Dependent Claims (4, 5, 6, 8, 11, 12, 13, 14, 15)
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7. Method of recording symbolic data marks by means of dark and light elements placed on paper or a similar carrier of print information, which is characterised by the fact that it involves:
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defining a grid of two systems of axes, a horizontal one and a vertical one, perpendicular to each other with equal or different relative distance in horizontal and vertical directions, on a paper area dedicated for recording symbolic data marks, determining a maximal allowed number of dark elements for a symbolic data mark, placing one system of symbolic data marks onto the area of lines connecting two intersections of each horizontal axis with vertical axes in a way, that a one logical status represented by the symbolic data mark has the majority or all of its dark elements placed on one half of the mentioned connecting line or close to it and the second logical status represented by the symbolic data mark has the majority or all its dark elements placed on the second half of the mentioned connection line or close to it, placing the second system of symbolic data marks in the area of lines connecting two intersections of each vertical axis with horizontal axes so that a one logical status represented by the symbolic data mark has the majority or all of its dark elements placed on one a half of the mentioned connecting line or close to it and the second logical status represented by the symbolic data mark has the majority or all its dark elements placed on the second half of the mentioned connection line or close to it, placing dark elements to positions maximal outlying to the centre of a line connecting intersections of the two systems of axes, placing the dark elements of the mark in such a way, that they are in minimal allowed distance v from the mentioned intersections of the horizontal and vertical axes, placing the dark elements of the mark in such a way, that they are in maximal distance d from a line connecting intersections of the horizontal and vertical axes. - View Dependent Claims (9, 10)
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Specification