One way automatic meter reading system

Details One way automatic meter reading system One way automatic meter reading system

2006-06-06

2006-06-06

Horabik, Michael (Department: 2635)

Communications: electrical

Continuously variable indicating

With meter reading

C455S517000

Reexamination Certificate

active

07057525

ABSTRACT:
A meter interface unit for use in a one way automatic meter reading system comprises first means for frequently transmitting a short burst transmission suitable for reception by a hand held or mobile receiver, and second means for transmitting narrow band data messages suitable for reception by a fixed network first tier receiving station. The receiver at the first tier receiving station has means for suppressing the short transmissions to prevent interference with the slow busts from the second transmitting means. Repeated packet collisions between the short bursts are avoided by randomly varying the time period between the short bursts.

REFERENCES:
patent: 5438329 (1995-08-01), Gastouniotis et al.
patent: 5719564 (1998-02-01), Sears
patent: 5726646 (1998-03-01), Bane et al.
patent: 5808558 (1998-09-01), Meek et al.
patent: 6208696 (2001-03-01), Giles

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