Prepayment system for electric power meters using a...

Details Prepayment system for electric power meters using a... Prepayment system for electric power meters using a...

2005-09-30

2010-11-23

Worjloh, Jalatee (Department: 3685)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Utility metering system

C705S400000, C705S412000

Reexamination Certificate

active

07840493

ABSTRACT:
The present invention refers to the use of a meter completely integrated on a single piece, totally covered and without contact with the exterior that incorporates a prepayment system and a more efficient method to control the electric energy supply and obtains excellent information from the meter by means of contactless intelligent cards.

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patent: 1052601 (2000-11-01), None
patent: 2344672 (2000-06-01), None
patent: 2004049270 (2004-06-01), None

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