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Smooth Raster Character Expansion

IP.com Disclosure Number: IPCOM000060827D
Original Publication Date: 1986-May-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Kuo, CJ [+details]

Abstract

A technique is described whereby character cells, as used in the creation of characters displayed on cathode ray tube (CRT) rasters, printers or any type of device which utilizes rasters to display characters, are expanded so as to create a family of fonts from one base font. This concept eliminates the need to store many different fonts of afamily, since only one size is needed. Other fonts are derived from the one font size. In prior art, raster character cells have been expanded by implementing individual picture elements (pels) into a square array, causing a staircase effect, in that the diagonal lines appear as a staircase. In order to have available families of fonts of different sizes, each size font was stored and referenced, as needed.