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EP 0 906 681 A1

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(43) Date of publication: 07.04.1999 Bulletin 1999/14 (21) Application number: 97928752.0 (22) Date of filing: 30.05.1997

(51) International Patent Classification (IPC):  H03H 17/ 02( . ) H03M 7/ 30( . ) H04B 14/ 04( . ) H04L 27/ 00( . ) H03H 11/ 04( . ) H04B 1/ 66( . ) H04L 5/ 14( . ) (86) International application number: PCT/US1997/009374 (87) International publication number: WO 1997/049216 (24.12.1997 Gazette 1998/03)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB IE IT LI NL SE Designated Extension States: RO (30) Priority: 19.06.1996 US 19960668594 (71) Applicant: Digital Compression Technology, L.P. New York, NY 10152 (US)	(72) Inventors: GRUENBERG, Elliot, L. West New York, NJ 07093 (US) MARSTEN, Richard, B. Kensington, MD 20895 (US) QIAN, Xiaomei Hatboro, PA 19040 (US) VAMAN, Dhadesugoor, R. Frederick, MD 21702 (US) (74) Representative: Beresford, Keith Denis Lewis, et al  BERESFORD & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ London WC1R 5DJ (GB)