| (19) |
 |
|
(11) |
EP 0 479 587 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
27.05.1992 Bulletin 1992/22 |
| (43) |
Date of publication A2: |
|
08.04.1992 Bulletin 1992/15 |
| (22) |
Date of filing: 03.10.1991 |
|
|
| (84) |
Designated Contracting States: |
|
AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
| (30) |
Priority: |
03.10.1990 IE 354290
|
| (71) |
Applicant: nHance Development Corporation |
|
Dublin 2 (IE) |
|
| (72) |
Inventor: |
|
- Hennessey, Denis
County Wicklow (IE)
|
| (74) |
Representative: Hackett, Sean James |
|
MARKS & CLERK,
57-60 Lincoln's Inn Fields
London WC2A 3LS
London WC2A 3LS (GB) |
|
| |
|
| (54) |
A method of displaying characters |
(57) A method (10-13) is disclosed for displaying characters using a computer system (1).
A colour table (4) is pre-stored with 16 colours, eight of which are grey scale colours
between and including black and white. Thus, if text or any other pre-set type of
character is to be displayed the processor (2) works with the eigth grey scaled colours
for anti-aliasing. for other characters, the other eight colours may optionally be
used. Thus, efficient anti-aliasing is achieved without use of more processing power
than conventionally required for processors using using a "VGA" colour table. Indeed,
less is required because when dispaying text a three-bit code is sufficient instead
of 4-bit.