(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