(19)
(11)
EP 0 345 334 A1
(12)
(43)
Date of publication:
13.12.1989
Bulletin 1989/50
(21)
Application number:
89901009.0
(22)
Date of filing:
14.12.1988
(51)
International Patent Classification (IPC):
G06F
15/
16
( . )
G06F
9/
52
( . )
G06F
13/
36
( . )
G06F
9/
46
( . )
G06F
13/
18
( . )
G06F
15/
177
( . )
(86)
International application number:
PCT/US1988/004418
(87)
International publication number:
WO 1989/006011
(
29.06.1989
Gazette 1989/14)
(84)
Designated Contracting States:
DE FR GB
(30)
Priority:
18.12.1987
US 19870134771
(71)
Applicant:
DIGITAL EQUIPMENT CORPORATION
Maynard, Massachusetts 01754 (US)
(72)
Inventor:
NIELSEN, Michael, J., K.
Palo Alto, CA 94306 (US)
(74)
Representative:
Goodman, Christopher, et al
Eric Potter & Clarkson St. Mary's Court St. Mary's Gate
Nottingham NG1 1LE
Nottingham NG1 1LE (GB)
(54)
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