(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