Character display apparatus for displaying multiple-font charact

Details Character display apparatus for displaying multiple-font charact Character display apparatus for displaying multiple-font charact

1991-05-20

1994-09-06

Zimmerman, Mark K.

Computer graphics processing and selective visual display system

Display driving control circuitry

Controlling the condition of display elements

345193, G06F 1500

Patent

active

053455487

ABSTRACT:
A character display apparatus with an attribute management unit for storing an attribute of a used font, a raster image storage unit for storing a raster image of the used font, and an image position management unit for storing a storage position of each raster image in the raster image storage unit in correspondence with each attribute of the attribute management unit. The character display apparatus also includes a judgment unit for judging whether a raster image of a character to be displayed is stored in the raster image storage unit or not, by referring to the attribute management unit and the image position management unit. The character display apparatus is further provided with a display unit for displaying an image of the character by use of the raster image in the raster image storage unit, in case that the raster image is stored therein.

REFERENCES:
patent: 4345245 (1982-08-01), Vella et al.
patent: 4918429 (1990-04-01), Clarke
patent: 5001653 (1991-03-01), Buchanan
patent: 5208908 (1993-05-01), Harrison et al.
"Multi-Font Handling For Large Character Set On Workstations"-Makoto Kobayashi and Yoshiaki Mima, 1987 IEEE, pp. 2-8.
Yumi Yamauchi and Noboru Kubo-"Hypermedia System with Typesetter (3)-Font Generation-", Information Process Academy No. 36, General Meeting, 1988, pp. 2305-1306.

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