Apparatus and method for the storage of graphic patterns

G - Physics – 09 – G

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375/12

G09G 3/00 (2006.01) G09G 1/02 (2006.01) G09G 5/22 (2006.01)

Patent

CA 1196431

ABSTRACT "APPARATUS AND METHOD FOR THE STORAGE OF GRAPHIC PATTERNS" An input unit E provides means (keyboard TA, scanner A) for inputting coarse graphical patterns (comprising a combination of graphical elements within a character array) and alphanumeric characters (a combination of pixels (smaller than graphical elements) within a character array). A converter UM1 assigns code words CW1, CW2 for the character arrays which can be recognised in character generators Z1, Z2 used to drive a VDU with screen BS. To enable fine graphic patterns to be viewed on a larger scale when input, the pattern is input as a coarse pattern and converted in a converted UM2 arranged to organise the graphic elements into pattern arrays to which respective code words CW3 are assigned and each of which is such that the graphic elements in it correspond in number and relative position within the array to the pixels in a character array. The converter UM2 converts the pattern arrays into character arrays by transforming the respective graphic elements into pixels which provide data words which are stored (S2) under addresses provided by the code words CW3. (Fig. 7)

391825

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