(19)
(11)
EP 1 337 862 A2
(12)
(88)
Date of publication A3:
23.01.2003
(43)
Date of publication:
27.08.2003
Bulletin 2003/35
(21)
Application number:
01992926.4
(22)
Date of filing:
06.11.2001
(51)
International Patent Classification (IPC)
7
:
G01R
11/56
(86)
International application number:
PCT/US0146/577
(87)
International publication number:
WO 0203/7227
(
10.05.2002
Gazette 2002/19)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI
(30)
Priority:
06.11.2000
US 246408 P
(71)
Applicant:
BCN Data Systems
San Francisco, CA 94111-3106 (US)
(72)
Inventor:
JONES, Alan
Clayton, Newcastle Staffs ST538A (GB)
(74)
Representative:
Casey, Lindsay Joseph et al
F. R. Kelly & Co.27 Clyde RoadBallsbridge
Dublin 4
Dublin 4 (IE)
(54)
ASYMMETRICAL COMMUNICATION IN PREPAYMENT METERING