(19)

(11)

EP 0 144 319 A1

(12)

(43) Date of publication: 19.06.1985 Bulletin 1985/25 (21) Application number: 83902338.0 (22) Date of filing: 07.06.1983

(51) International Patent Classification (IPC):  H04N 1/ 04( . ) H04N 1/ 028( . ) H04N 1/ 00( . ) H04N 1/ 12( . ) (86) International application number: PCT/US1983/000887 (87) International publication number: WO 1984/005005 (20.12.1984 Gazette 1984/30)

(84) Designated Contracting States: DE FR GB NL (71) Applicant: TERMINAL DATA CORPORATION Woodland Hills CA 91364 (US)

(72) Inventors: ROTHBART, Michael Westlake Village, CA 91362 (US) THERIEN, Robert, D. Newbury Park, CA 91320 (US) OLIVER, Thomas, W. 28947 Thousand Oaks Blvd. Agoura, CA 91301 (US) ROLLER, Thomas, W. Thousand Oaks, CA 91360 (US) WILLIAMS, Robert, D. Agoura, CA 91301 (US) (74) Representative: Paget, Hugh Charles Edward, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)