发明名称 |
Automatic meter reading system utilizing a countdown timer |
摘要 |
An automatic meter reading system that includes a head end controller and an endpoint that is interfaced to a utility meter. The head end controller and the endpoint communicate via RF communication. The endpoint includes an internal clock that synchronizes itself to a clock countdown signal. The clock countdown signal is generated by the head end controller through use of sequence inversion keying. |
申请公布号 |
EP1515579(A3) |
申请公布日期 |
2007.08.15 |
申请号 |
EP20040255316 |
申请日期 |
2004.09.02 |
申请人 |
ITRON, INC. |
发明人 |
NAGY, CHRISTOPHER;OSTERLOH, CHRISTOPHER L. |
分类号 |
G04G7/02;H04Q9/00;H04B7/24;H04B7/26;H04L7/00 |
主分类号 |
G04G7/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|