(19)
(11)
EP 0 948 769 A1
(12)
(43)
Date of publication:
13.10.1999
Bulletin 1999/41
(21)
Application number:
97953454.0
(22)
Date of filing:
24.12.1997
(51)
International Patent Classification (IPC):
G06F
9/
455
( . )
G06F
9/
48
( . )
G06F
9/
46
( . )
G06F
13/
10
( . )
(86)
International application number:
PCT/US1997/023907
(87)
International publication number:
WO 1998/029807
(
09.07.1998
Gazette 1998/27)
(84)
Designated Contracting States:
DE FR GB IE NL
(30)
Priority:
30.12.1996
US 19960774648
(71)
Applicant:
Cirrus Logic, Inc
Fremont, CA 94538-6419 (US)
(72)
Inventor:
TARQUINI, Richard
Apex, NC 27502 (US)
(74)
Representative:
Kahler, Kurt, Dipl.-Ing.
Patentanwälte Kahler, Käck, Fiener et col., Vorderer Anger 268
86899 Landsberg/Lech
86899 Landsberg/Lech (DE)
(54)
REAL TIME SERVICES IN BACKWARDLY COMPATIBLE OPERATING SYSTEMS