(19)

(11)

EP 0 956 650 A1

(12)

(43) Date of publication: 17.11.1999 Bulletin 1999/46 (21) Application number: 96936374.0 (22) Date of filing: 10.10.1996

(51) International Patent Classification (IPC):  H03H 21/ 00( . ) H04L 25/ 03( . ) H04L 1/ 06( . ) H04B 1/ 12( . ) (86) International application number: PCT/US1996/016298 (87) International publication number: WO 1998/016021 (16.04.1998 Gazette 1998/15)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (71) Applicant: Statistical Signal Processing, Inc. Yountville, CA 94599 (US)	(72) Inventors: GARDNER, William, A. Yountville, CA 94599 (US) SCHELL, Stephen, V. Yountville, CA 94599-1291 (US) (74) Representative: Baillie, Iain Cameron, et al  Ladas & Parry, Dachauerstrasse 37 80335 München 80335 München (DE)