(19)

(11)

EP 1 171 954 A2

(12)

(88) Date of publication A3: 01.11.2001 (43) Date of publication: 16.01.2002 Bulletin 2002/03 (21) Application number: 00917515.9 (22) Date of filing: 14.04.2000

(51) International Patent Classification (IPC)7: H03L 7/197 (86) International application number: PCT/NZ0000/054 (87) International publication number: WO 0062/428 (19.10.2000 Gazette 2000/42)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 14.04.1999 NZ 33519899 (71) Applicant: Tait Electronics Limited Christchurch (NZ)	(72) Inventor: MANN, Stephen IanTait Electronics Limited Burnside,Christchurch (NZ) (74) Representative: Lloyd, Patrick Alexander Desmond  Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)