(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