(19)
(11) EP 0 256 084 A1

(12)

(43) Date of publication:
24.02.1988 Bulletin 1988/08

(21) Application number: 87901160.0

(22) Date of filing: 04.02.1987
(51) International Patent Classification (IPC): 
H04H 20/ 77( . )
 H04N 7/ 16( . )
(86) International application number:
PCT/SE1987/000052
(87) International publication number:
WO 1987/004882 (13.08.1987 Gazette 1987/18)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 05.02.1986 SE 19860000521

(71) Applicants:
  • LJUNGDAHL, Arne
    S-126 66 Hägersten (SE)
  • FAGERLIN, Peter
    S-141 33 Huddinge (SE)

(72) Inventors:
  • LJUNGDAHL, Arne
    S-126 66 Hägersten (SE)
  • FAGERLIN, Peter
    S-141 33 Huddinge (SE)

   


(54) METHOD AND APPARATUS FOR SELECTIVELY BLOCKING PROGRAM CHANNELS