Communications: electrical – Digital comparator systems
Patent
1975-12-22
1976-12-28
Shaw, Gareth D.
Communications: electrical
Digital comparator systems
340324AD, 178 30, G06F 314
Patent
active
040004864
ABSTRACT:
A character generator for full page, raster scan printing is controlled to sequentially generate parts of different characters in a single scan. Further the character generation control independently stores for each row of text to be generated, the order position of a character or symbol being generated and the remaining number of raster scans required to complete generation of the symbol. Use of this control permits the sequential generation of parts of symbols even though the symbols have different relative widths and the full page raster scans are in a direction normal to the lines of text on the page. Use of the control also permits text assembly in a page memory to be generated in printed lines of text that extend either parallel or normal to the direction of light spot scanning by selecting predetermined alternative page memory access sequences. By the use of "white space" indicating control codes in combination with the character generation control of this invention it is possible to materially reduce the size of memory required to store a page of text.
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Hauptman Gunter A.
International Business Machines - Corporation
Knearl Homer L.
Rhoads Jan E.
Shaw Gareth D.
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