(19)
(11) EP 0 616 743 A1

(12)

(43) Date of publication:
28.09.1994 Bulletin 1994/39

(21) Application number: 92924829.0

(22) Date of filing: 11.12.1992
(51) International Patent Classification (IPC): 
H04B 7/ 185( . )
H04L 1/ 08( . )
H04L 1/ 00( . )
(86) International application number:
PCT/GB1992/002309
(87) International publication number:
WO 1993/012598 (24.06.1993 Gazette 1993/15)
(84) Designated Contracting States:
DE ES FR GB IT NL

(30) Priority: 11.12.1991 GB 19910026431

(71) Applicant: SIGNAL PROCESSORS LIMITED
Cambridge CB4 4GJ (GB)

(72) Inventors:
  • MCFARTHING, Anthony Lawrence
    Ely, Cambridge CB10 1NW (GB)
  • TERRELL, Peter Martin
    Over, Cambridge CB4 5NF (GB)

(74) Representative: Beresford, Keith Denis Lewis, et al 
BERESFORD & Co. 2-5 Warwick Court High Holborn
London WC1R 5DJ
London WC1R 5DJ (GB)

   


(54) COMBINATION OF TWO SIGNALS, THE SECOND APPEARING AS A NOISE FOR THE FIRST ONE