Remote meter reading apparatus
US4352104A · kind A · utility
16Cited by
4References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1980 |
| Grant date | Sep 28, 1982 |
| Priority date | — |
| Expiry date | May 5, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q9/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A remote meter reading unit (22) feeds clock pulses to a meter (23) over a transmission line (34). The meter (23), in synchronism with the clock pulses, feeds a predetermined number of synchronization signals, a predetermined number of meter data signals and a predetermined number of redundancy signals back to the reading unit (22).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.