(19)
(11)
EP 1 145 553 A1
(12)
(43)
Date of publication:
17.10.2001
Bulletin 2001/42
(21)
Application number:
00902420.9
(22)
Date of filing:
14.01.2000
(51)
International Patent Classification (IPC)
7
:
H04N
7/173
,
H04N
17/00
(86)
International application number:
PCT/US0001/021
(87)
International publication number:
WO 0044/174
(
27.07.2000
Gazette 2000/30)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
(30)
Priority:
22.01.1999
US 116731 P
(71)
Applicant:
General Instrument Corporation
Horsham,Pennsylvania 19044 (US)
(72)
Inventor:
ANDERSON, Steven, E.
La Jolla, CA 92037 (US)
(74)
Representative:
Hoeger, Stellrecht & Partner
Uhlandstrasse 14 c
70182 Stuttgart
70182 Stuttgart (DE)
(54)
DETECTION OF DUPLICATE PARTICIPANTS IN A TWO-WAY MODEM ENVIRONMENT