Graphical data encoding

Details Graphical data encoding Graphical data encoding

H - Electricity

04

N

375/18, 354/72,

H04N 1/413 (2006.01) G06K 15/10 (2006.01)

Patent

CA 1151302

314,217. A B S T R A C T This invention relates to a method and to an apparatus for reducing the redundancy of bit sequences describing characters or graphic patterns. In a punctiform display of characters, or of graphic patterns, the degeneration at a given speed of output is improved by the application of fractional increments. In the coding of bit sequences of characters represent- ing the characters or the pattern(s) only those combinations are admitted which provide after each primary binary character, coordinated with a dot to be displayed, a predetermined number of secondary binary characters. With these combinations are coordinated redundancy-reducing code words which can be transmitted and/or stored instead of bit sequences.

314217

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