(19)
(11)
EP 0 273 046 A1
(12)
(43)
Date of publication:
06.07.1988
Bulletin 1988/27
(21)
Application number:
87903806.0
(22)
Date of filing:
29.05.1987
(51)
International Patent Classification (IPC):
H03J
1/
00
( . )
H04N
5/
50
( . )
H03J
5/
02
( . )
H04N
7/
16
( . )
(86)
International application number:
PCT/US1987/001252
(87)
International publication number:
WO 1987/007795
(
17.12.1987
Gazette 1987/28)
(84)
Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE
(30)
Priority:
03.06.1986
US 19860870223
(71)
Applicant:
INFORMATION RESOURCES, INC.
Chicago, IL 60606 (US)
(72)
Inventor:
WRIGHT, Wortley, Andrew, Jr.
Bethlehem, PA 18017 (US)
(74)
Representative:
Cross, Rupert Edward Blount, et al
BOULT, WADE & TENNANT 27 Furnival Street
London EC4A 1PQ
London EC4A 1PQ (GB)
(54)
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