(19)

(11)

EP 0 775 420 A2

(12)

(43) Date of publication: 28.05.1997 Bulletin 1997/22 (21) Application number: 95929393.0 (22) Date of filing: 04.08.1995

(51) International Patent Classification (IPC):  H04H 1/ 00( . ) H04H 7/ 00( . ) H04N 5/ 272( . ) H04N 5/ 262( . ) H04N 5/ 14( . ) H04H 60/ 59( . ) (86) International application number: PCT/US1995/009946 (87) International publication number: WO 1996/005689 (22.02.1996 Gazette 1996/09)

(84) Designated Contracting States: AT CH DE ES FR GB GR IT LI NL SE (30) Priority: 04.08.1994 IL 19940110573 (71) Applicant: ORAD, INC. Forest Hills, NY 11375 (US)	(72) Inventors: TAMIR, Michael 69122 Tel Aviv (IL) SHARIR, Avi 67727 Ramat Hasharon (IL) (74) Representative: Goodman, Christopher  Eric Potter & Clarkson 1 St. Mary's Court St Mary's Gate Nottingham NG1 1LE Nottingham NG1 1LE (GB)