Communications: electrical – Continuously variable indicating – With meter reading
Patent
1997-05-30
2000-06-27
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34087003, 361659, 705412, 324 74, G08B 2300
Patent
active
060812044
ABSTRACT:
An electricity meter which, in one embodiment, includes a microcomputer coupled to both a liquid crystal display (LCD) and an optical port. The LCD includes an on board controller and an LCD random access memory (RAM), and in accordance with the present invention, the microcomputer is programmed to communicate the contents of the LCD RAM to the optical port during selected times of meter operation. Generally, and in an exemplary embodiment, when the LCD RAM data is updated by the microcomputer during meter operation, the microcomputer communicates such updated data to the optical port. In one specific implementation, a user selectable flag may be set to 1 or 0. If the user sets the flag to 0, then the communications feature is not enabled. If the flag is set to 1, then the communications feature is enabled. In operation, and upon receipt of a display quantity command, the microcomputer writes data to the LCD RAM. The microcomputer then checks whether the communications feature is selected (i.e., whether the flag is set to 0 or 1), and if the feature is not selected, processing proceeds as is known. If the flag is set to 1, then the microcomputer reads the data stored in the LCD RAM and communicates such data to the optical port.
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PCT International Search Report, dated Sep. 7, 1998, 3 pages.
Crittenden Curtis W.
Jamison John J.
Lavoie Gregory P.
Lee, Jr. Robert E.
Edwards, Jr. Timothy
General Electric Company
Horabik Michael
Horton, Esq. Carl B.
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