(19)

(11)

EP 1 177 633 A1

(12)

(43) Date of publication: 06.02.2002 Bulletin 2002/06 (21) Application number: 00925763.5 (22) Date of filing: 11.05.2000

(51) International Patent Classification (IPC)7: H03L 7/197, H03M 3/02 (86) International application number: PCT/NZ0000/071 (87) International publication number: WO 0069/074 (16.11.2000 Gazette 2000/46)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 11.05.1999 NZ 33570499 (71) Applicant: Tait Electronics Limited Christchurch (NZ)	(72) Inventor: MANN, Stephen I Burnside,Christchurch (NZ) (74) Representative: Lloyd, Patrick Alexander Desmond et al Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)