(19)
(11)
EP 0 427 713 A1
(12)
(43)
Date of publication:
22.05.1991
Bulletin 1991/21
(21)
Application number:
88903552.0
(22)
Date of filing:
29.02.1988
(51)
International Patent Classification (IPC):
H04B
3/
23
( . )
(86)
International application number:
PCT/US1988/000820
(87)
International publication number:
WO 1988/007792
(
06.10.1988
Gazette 1988/22)
(84)
Designated Contracting States:
DE FR GB SE
(30)
Priority:
27.03.1987
US 19870032131
(71)
Applicant:
UNIVERSAL DATA SYSTEMS, INC.
Huntsville, AL 35805-1953 (US)
(72)
Inventor:
MCMAHAN, Dennis, B.
Huntsville, AL 35802 (US)
(74)
Representative:
Dunlop, Hugh Christopher
Motorola, European Intellectual Property, Midpoint, Alencon Link
Basingstoke, Hampshire RG21 7PL
Basingstoke, Hampshire RG21 7PL (GB)
(54)
MODEM WITH IMPROVED REMOTE ECHO LOCATION AND CANCELLATION