(19)
(11) EP 0 419 450 A1

(12)

(43) Date of publication:
03.04.1991 Bulletin 1991/14

(21) Application number: 86906137.0

(22) Date of filing: 22.09.1986
(51) International Patent Classification (IPC): 
G11B 20/ 10( . )
H04L 27/ 00( . )
H03K 7/ 00( . )
H04L 27/ 18( . )
(86) International application number:
PCT/US1986/001976
(87) International publication number:
WO 1988/002199 (24.03.1988 Gazette 1988/07)
(84) Designated Contracting States:
FR IT

(71) Applicants:
  • VOKAC, Peter R.
    Tucson, AZ 85074 (US)
  • GERDES, Richard C.
    Tucson, AZ 85718 (US)

(72) Inventors:
  • VOKAC, Peter R.
    Tucson, AZ 85074 (US)
  • GERDES, Richard C.
    Tucson, AZ 85718 (US)

(74) Representative: Wächtershäuser, Günter, Prof. Dr. 
Patentanwalt, Tal 29
D-80331 München
D-80331 München (DE)

   


(54) METHOD AND SYSTEM FOR MODULATING A CARRIER SIGNAL