(19)
(11) EP 0 113 730 A1

(12)

(43) Date of publication:
25.07.1984 Bulletin 1984/30

(21) Application number: 83901681.0

(22) Date of filing: 15.04.1983
(51) International Patent Classification (IPC): 
H04L 9/ 00( . )
H04L 9/ 08( . )
G07F 7/ 10( . )
H04L 9/ 20( . )
(86) International application number:
PCT/US1983/000567
(87) International publication number:
WO 1984/000457 (02.02.1984 Gazette 1984/03)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 15.07.1982 US 19820398480

(71) Applicant: LIGHT SIGNATURES, INC.
Los Angeles California 90045 (US)

(72) Inventor:
  • GOLDMAN, Robert, Norman
    Kailua, HI 96734 (US)

(74) Representative: Hansmann, Axel, et al 
Patent- und Rechtsanwälte Hansmann, Vogeser, Dr. Boecker, Alber, Dr. Strych, Liedl Albert-Rosshaupter-Strasse 65
D-81369 München
D-81369 München (DE)

   


(54) PRIVATE COMMUNICATION SYSTEM