Patent · US Expired

Method for displaying bitmap derived text at a display having limited pixel-to-pixel spacing resolution

US5910805A · kind A · utility

103Cited by
13References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 11, 1996
Grant dateJun 8, 1999
Priority date
Expiry dateJan 11, 2016

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06T11/001
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An image font file is created containing compressed bitmap representations of the characters of one or more fonts utilized for a given text. These compressed bitmap representations are derived as character image templates corresponding with a font of an enlarged size. Upon being conveyed to client software, the individual characters of the image font file are accessed, and while remaining in a compressed format are selectively shifted in accordance with typesetting specification error values, then scaled and filtered to produce a display character in anti-aliased, sub-pixel position format.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.