Patent ID: 7218327

Claim:
A font memory for a display comprising: a read-only memory, wherein a storage region is divided into a program storing region and a font data storing region which is divided into a mono-font data storing region and a color font data storing region, for mapping and storing data (1) in the mono-font data storing region by corresponding first character codes to mono-font data, and (2) for mapping and storing data in three segment storage regions in the color font data storing region by corresponding second character codes which define characteristics of color font data of a set of three primary colors of red, green and blue, to color font data, wherein the three segment storage regions in the color font data storing region include a mono-font storage diversion changeable storage region that can store the color font data for one of the three primary colors, and that can be diverted to store therein additional mono-font data, by corresponding the second character codes to the mono-font data.