(19)
(11) EP 0 093 713 A1

(12)

(43) Date of publication:
16.11.1983 Bulletin 1983/46

(21) Application number: 82901280.0

(22) Date of filing: 01.04.1982
(51) International Patent Classification (IPC): 
G11B 5/ 09( . )
G11B 5/ 596( . )
G11B 21/ 08( . )
G11B 27/ 30( . )
G11B 5/ 58( . )
G11B 20/ 12( . )
G11B 21/ 10( . )
(86) International application number:
PCT/US1982/000386
(87) International publication number:
WO 1983/001859 (26.05.1983 Gazette 1983/13)
(84) Designated Contracting States:
CH DE FR GB LI SE

(30) Priority: 16.11.1981 US 19810321886

(71) Applicant: DMA SYSTEMS CORPORATION
Santa Barbara, CA 93101 (US)

(72) Inventor:
  • POLLOCK, William A.
    Santa Barbara, CA 93109 (US)

(74) Representative: Zenz, Joachim Klaus, Dipl.-Ing., et al 
Zenz, Helber, Hosbach & Partner Patentanwälte Am Ruhrstein 1
D-45133 Essen
D-45133 Essen (DE)

   


(54) TRACK IDENTIFICATION CODE RECORDING METHOD