Browse Prior Art Database

Dot Matrix Character Font Expansion Algorithms

IP.com Disclosure Number: IPCOM000121710D
Original Publication Date: 1991-Sep-01
Included in the Prior Art Database: 2005-Apr-03
Document File: 3 page(s) / 57K

Publishing Venue

IBM

Related People

Barclay, TW: AUTHOR [+2]

Abstract

The following four algorithms describe a method of generating different character fonts from a single character lookup table. The fonts described are double-wide characters, double-high characters, double- high, double-wide characters and italic characters.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Dot Matrix Character Font Expansion Algorithms

      The following four algorithms describe a method of
generating different character fonts from a single character lookup
table.  The fonts described are double-wide characters, double-high
characters, double- high, double-wide characters and italic
characters.

      The following is the representation of the character matrix as
stored in the lookup table:

      The above notation is used in the following descriptions to
indicate the original position of the pel before the font generation
algorithm is applied.
Algorithm #1 - Double-Wide (DW) Character Font Generation
Algorithm #2 - Double High Character Font Generation
Algorithm #3 - Double Wide / Double High Character Font Generation
  Combine Algorithm #1 and #2:
Algorithm #4 - Italic Character Font Generation