Redundant precision time keeping for utility meters
US6859742B2 · kind B2 · utility
58Cited by
33References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jul 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R22/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for generating precision time signals includes a source of power line timing information, a source of precision time signals, and a timing circuit. The timing circuit is coupled to the source of precision time signals to receive a precision time signal there from, and is operable to generate clock information based on the precision time signal. The timing circuit is further operable to generate clock information based on the power line timing information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.