G - Physics – 06 – K
Patent
G - Physics
06
K
314/7, 354/236.1
G06K 15/00 (2006.01) G06K 15/02 (2006.01) G06K 15/12 (2006.01)
Patent
CA 1187621
Abstract of the Disclosure Electronic printer apparatus in which the inten- sity of the beam of a cathode-ray tube is controlled dur- ing successive beam sweeps to display and project onto a rotating electrostatically-charged surface an image of successive slices through a row of characters to be printed, the latent line images thus formed being then converted to a toner image for subsequent transfer to a page of paper. Digital information bits organized in bytes and representing slices through each character are stored in respective areas of a permanent memory storage device. The appropriate slices of the characters are accessed in response to character-representing input sig- nals, and are read out serially to control the beam in- tensity during each sweep and thus display, along the sweep, the desired slice through the row of characters. The stored bits for each character slice are organized into various integral numbers of x-bit and y-bit bytes, preferably 8-bit and 6-bit bytes, the number of bytes of each type for each character slice depending on the bit width of the corresponding character cell; there are no extra or left-over bits beyond these included in the two types of bytes. The so-stored bytes of differing bit content are accessed byte-by-byte, enabling simpli- fication and reduced cost of the apparatus.
431602
Borden Ladner Gervais Llp
Decision Data Computer Corporation
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