(19)
(11) EP 0 178 305 A1

(12)

(43) Date of publication:
23.04.1986 Bulletin 1986/17

(21) Application number: 85901038.0

(22) Date of filing: 28.02.1985
(51) International Patent Classification (IPC): 
G11B 15/ 00( . )
G11B 27/ 10( . )
 G11B 15/ 02( . )
G11B 27/ 30( . )
(86) International application number:
PCT/GB1985/000081
(87) International publication number:
WO 1985/004042 (12.09.1985 Gazette 1985/20)
(84) Designated Contracting States:
AT BE CH DE FR GB LI LU NL SE

(30) Priority: 01.03.1984 GB 19840005429

(71) Applicant: INDEX DATA PROGRAMMES LIMITED
London WC1V 6PX (GB)

(72) Inventor:
  • BLACKBURN, Donald, George
    Exmouth, Devon. EX18 4LF (GB)

   


(54) IMPROVED METHOD OF STORAGE AND RETRIEVAL OF INFORMATION STORED ON VIDEO MEDIA