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The U.S. Patent and Trademark Office has granted three provisional patents to smart grid company Infrax Systems Inc.

According to Infrax, the secure network interface card has a universal host interface board (HIB) with a wireless module functioning as a daughter board to the HIB. The HIB has a wireless radio in the 915 MHz spectrum for diagnostic testing and can be converted for home area networking. A wireless WAN module communicates with the HIB and transmits data to a utility's control center. The module uses ISM 2400 MHz spectrum and complies with IEEE 802.15.4 specifications.

The company says the smart grid mini collector/regenerator is a self-contained network interface repeater that serves several functions and brings network intelligence and analytics to the closest point with the electric meters in an advanced metering infrastructure (AMI). The primary function of this unit is to manage and aggregate meter data from all meters in its cell and relay this data to smart grid collectors.

Infrax reports that the smart grid collector/concentrator gateway includes a collector unit that is stand-alone, backward compatible and highly secured. The system provides a smart grid gateway to help facilitate both AMI and distribution automation.

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