Title:
BIT MAP SYSTEM DISPLAY DEVICE
Document Type and Number:
Japanese Patent JPH05173538
Kind Code:
A
Abstract:
PURPOSE: To improve display processing speed, to prevent the flickering of a screen and to realize excellent image quality.
CONSTITUTION: Many modification patterns are stored in a ruled line pattern ROM 14, and a pattern datum selected from the modification patterns by a pattern No. register 17 is outputted to a synthesis circuit 16. A pattern datum corresponding to a character code is outputted to the circuit 16, which synthesizes both data to write in a frame RAM 15. When the specified amount of data is written in the RAM 15, the synthesized datum is outputted to a display part so as to display a synthesized image.
Inventors:
YOKOGAWA HIROYUKI
Application Number:
JP11925092A
Publication Date:
July 13, 1993
Filing Date:
May 12, 1992
Export Citation:
Assignee:
CASIO COMPUTER CO LTD
International Classes:
G06F3/153; G09G5/24; G09G5/36; (IPC1-7): G06F3/153; G09G5/24; G09G5/36
Domestic Patent References:
| JPS62249190A | 1987-10-30 |
Attorney, Agent or Firm:
Noriyasu Sakamoto