(19)
(11) EP 0 563 355 A1

(12)

(43) Date of publication:
06.10.1993 Bulletin 1993/40

(21) Application number: 92921657.0

(22) Date of filing: 19.10.1992
(51) International Patent Classification (IPC): 
G10K 11/ 178( . )
(86) International application number:
PCT/GB1992/001916
(87) International publication number:
WO 1993/008560 (29.04.1993 Gazette 1993/11)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 21.10.1991 GB 19910022323

(71) Applicant: GEC-MARCONI LIMITED
Stanmore, Middlesex HA7 4LY (GB)

(72) Inventors:
  • SALLOWAY, Anthony, John 11 Furber Court Arbours
    Northamptonshire NN3 3RW (GB)
  • TWINEY, Robert, Christopher 7 Winchester Close
    Northampton Northamptonshire NN4 9BA (GB)

(74) Representative: Pope, Michael Bertram Wingate 
The General Electric Company, p.l.c. GEC Patent Department Waterhouse Lane
Chelmsford, Essex CM1 2QX
Chelmsford, Essex CM1 2QX (GB)

   


(54) A SOUND CONTROL DEVICE