Utility meter having primary and secondary communication circuits
US6665620B1 · kind B1 · utility
58Cited by
24References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1999 |
| Grant date | Dec 16, 2003 |
| Priority date | — |
| Expiry date | Jul 27, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S20/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A communication system for a utility meter that has a primary power supply includes a primary communication circuit and a secondary communication circuit. The primary power supply is operable to receive a primary electrical power from a primary power source and generate a primary bias power therefrom. The primary communication circuit is operable to effectuate external communications when the primary electrical power from the primary power source is present. The secondary communication circuit is operable to effectuate external communications when the primary electrical power from the primary power source is interrupted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.