Low impedance encoder for a utility meter
US6756914B1 · kind B1 · utility
26Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2000 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Feb 1, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F15/0755
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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 occurred; the switch will continue to open and close throughout the process of metering. A low current flow through the switch indicates that the switch is open.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.