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The dot pattern is a two-dimensional barcode; the most common is the proprietary Anoto dot pattern. In the Anoto dot pattern, the paper is divided into a grid with a spacing of about 0.3 mm, a dot is printed near each intersection offset slightly in one of four directions, a camera in the pen typically records a 6 x 6 groups of dots.
Graph paper, coordinate paper, grid paper, or squared paper is writing paper that is printed with fine lines making up a regular grid. It is available either as loose leaf paper or bound in notebooks or Graph Books. It is commonly found in mathematics and engineering education settings, exercise books, and in laboratory notebooks.
The printing speed of serial dot matrix printers with moving heads varies from 30 [36] to 1550 characters per second (cps). [37] In a considerably different configuration, so called line dot matrix printers [38] or line matrix printers use a fixed print head almost as wide as the paper path utilizing a horizontal line of thousands of pins for ...
Initially, paper was ruled by hand, sometimes using templates. [1] Scribes could rule their paper using a "hard point," a sharp implement which left embossed lines on the paper without any ink or color, [2] or could use "metal point," an implement which left colored marks on the paper, much like a graphite pencil, though various other metals were used.
Some printers are capable of producing smaller dots and will intermesh the small dots within the corners larger ones for antialiasing. Some printers have a fixed resolution across the printhead but with much smaller micro-stepping for the mechanical paper feed, resulting in non-uniform dot-overlapping printing resolutions like 600×1200 dpi.
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Quiet zone at least 3X size of the dots. The DotCode bits array is represented as: (Two mask bits: M2, M1)(Data bits)(Corner bits, can be data or padding bits: C1 – C6) The data codewords in 0 – 112 range are encoded in 5-of-9 binary dot patterns [2]: 5.2 which are encoded from 9 dots where 5 black dots and 4 white spaces. The rest of ...
When counting dots near the boundary of the shape as 1/2, there are 69 interior dots and 20 boundary dots for an estimated area of 79, close to the actual area of 25 π ≈ 78.54. A dot planimeter is a device used in planimetrics for estimating the area of a shape, consisting of a transparent sheet containing a square grid of dots. To estimate ...
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