EP 1236020 A1 20020904 - LOW IMPEDANCE ENCODER FOR A UTILITY METER
Title (en)
LOW IMPEDANCE ENCODER FOR A UTILITY METER
Title (de)
NIEDEROHMIGE KODIERVORRICHTUNG FÜR EINEN VERBRAUCHSZÄHLER
Title (fr)
CODEUR BASSE IMPEDANCE DESTINE A UN COMPTEUR D'ELECTRICITE
Publication
Application
Priority
- US 0031091 W 20001113
- US 16513199 P 19991112
Abstract (en)
[origin: WO0135058A1] A low impedance encoder generally comprises a clock source and a switch. The clock source operates according to a predetermined duty cycle. The switch has a first position, closed, and a second position, opened. The duty cycle controls a current flow the switch. A high current flow through the switch indicates that the switch is closed and that the consumption of a utility as registered by the utility meter has occured; the switch will continue to open and close throughout the metering process. A low current flow through the switch indicates that the switch is open.
IPC 1-7
IPC 8 full level
G01D 4/00 (2006.01); G01F 15/06 (2006.01); G01F 15/075 (2006.01); G01R 22/00 (2006.01)
CPC (source: EP)
G01D 4/00 (2013.01); G01F 15/063 (2013.01); G01F 15/0755 (2013.01); G01R 22/00 (2013.01)
Citation (search report)
See references of WO 0135058A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0135058 A1 20010517; AU 1601401 A 20010606; BR 0015499 A 20020723; CA 2391006 A1 20010517; CN 1390296 A 20030108; EP 1236020 A1 20020904; JP 2003514235 A 20030415; MX PA02004716 A 20030624
DOCDB simple family (application)
US 0031091 W 20001113; AU 1601401 A 20001113; BR 0015499 A 20001113; CA 2391006 A 20001113; CN 00815597 A 20001113; EP 00978560 A 20001113; JP 2001536940 A 20001113; MX PA02004716 A 20001113