Boots – shoes – and leggings
Patent
1976-09-30
1978-01-31
Chapnick, Melvin B.
Boots, shoes, and leggings
G06F 312
Patent
active
040719090
ABSTRACT:
Interface circuitry for effectuating the control of a printing unit that employs a cursor moving in a scanning raster to effect permanent recordation on a laminar print media, such as paper. The interface circuitry includes a buffer storage unit for receiving high speed digitized signals designating characters to be printed. Corresponding video signals are accessed within the interface circuitry and are provided to the printer. The circuit elements and timing devices define a two dimensional matrix of area locations of uniform geometry. Video signals controlling the print characteristics in a row of area locations are accessed out of memory in the interface circuitry and are serially relayed to the cursor to produce a pattern of light and dark areas in a row within the field within which the character is to be printed. Provision of video signals in this manner is repeated until the video signals have been provided for all character positions through which that row passes. As the cursor in the printer steps to the next row, the circuitry of the interface unit likewise adjusts to access out patterns corresponding to sections of characters lying within the next row. The circuitry thus operates to build up the character representations layer by layer until an entire page is printed. Timing devices provide margins around the edges of the paper. Other portions of the circuitry upon appropriate command from the digital processor, operate to print caption information on the sheets of paper, which caption information is stored in the interface circuitry.
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patent: 3634828 (1972-01-01), Myers et al.
patent: 3719781 (1973-03-01), Fulton et al.
patent: 3803629 (1974-04-01), Walsh et al.
patent: 3898627 (1975-08-01), Hooker et al.
patent: 3990559 (1976-11-01), Martin et al.
patent: 3991868 (1976-11-01), Robinson et al.
patent: 3996585 (1976-12-01), Hogan et al.
patent: 4000486 (1976-12-01), Schomburg
Chapnick Melvin B.
Ralabate James J.
Taylor Ronald L.
Weiss Franklyn C.
Xerox Corporation
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