(19)

(11)

EP 0 676 106 A1

(12)

(43) Date of publication: 11.10.1995 Bulletin 1995/41 (21) Application number: 94904496.0 (22) Date of filing: 17.12.1993

(51) International Patent Classification (IPC):  H04J 3/ 08( . ) H04J 3/ 14( . ) H04J 3/ 06( . ) H04Q 11/ 04( . ) (86) International application number: PCT/US1993/012362 (87) International publication number: WO 1994/015419 (07.07.1994 Gazette 1994/15)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 22.12.1992 US 19920994883 23.11.1993 US 19930157899 23.11.1993 US 19930157900 (60) Divisional application: 98123441.2 / 0912005 (71) Applicant: APPLIED DIGITAL ACCESS, INC. San Diego, CA 92121 (US)	(72) Inventors: ENGDAHL, Thomas, L. Escondido, CA 92025 (US) TYBURSKI, Edward, S. San Diego, CA 92130 (US) HARTMANN, Paul, R. Escondido, CA 92025 (US) (74) Representative: VOSSIUS & PARTNER  Siebertstrasse 4 D-81675 München D-81675 München (DE)