Display controlling apparatus and control method thereof

Details Display controlling apparatus and control method thereof Display controlling apparatus and control method thereof

1996-02-14

1999-08-17

Hjerpe, Richard A.

Computer graphics processing and selective visual display system

Display driving control circuitry

Physically integral with display elements

345192, 345950, G09G 500

Patent

active

059400684

ABSTRACT:
The character numbers of the characters of line sprites and the color palette numbers are specified in the regions C.sub.1,0, C.sub.1,1 C.sub.1,2, . . . C.sub.1,31. The data for specifying display position of the lines and shrinkage are stored in the regions L.sub.1, L.sub.2 . . . to L.sub.380. also, the number of active characters to be displayed on the display screen is specified in the region L.sub.1, L.sub.2, . . . to L.sub.380. Since only one display position is specified to each of the line sprites, capacity of the memory can be decreased, and control of the display can be done easily. Also, since the number of active characters can be specified in line sprite units, operation for changing the display and other operations can be executed easily with sufficient flexibility.

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patent: 5552804 (1996-09-01), Leach
patent: 5634850 (1997-06-01), Kitahara et al.

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