Sequence inversion keyed countdown timer utilized within a utility meter system
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United States of America Patent
Stats
-
May 13, 2008
Grant Date -
Mar 10, 2005
app pub date -
Jul 28, 2004
filing date -
Sep 5, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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Cited Art Landscape
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