We do this advisedly, being cognizant that SunPower offers a number of appealing features, including proprietary cell IP and vertically integrated capabilities.

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These gateways attach to existing radio networks, telephones and even cell phones, digitizing conversations over an IP network so that people with different devices--and from different departments--can talk to each other.

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The Index also showed that although fuel-cell technologies remained the hottest of the hot spots in cleantech IP development, solar technologies received more attention than wind power in terms of overall patenting activity in 2010.

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Chip vendors will be building more device chips and cell site radio chips, infrastructure companies are selling more cell site equipment, and since WiMAX and LTE are both IP-based networks, network back-ends will be converted from traditional switches to routers so there are opportunities for companies that make routers.

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Technologies that let an IP-based telecommunications provider offer IP telephony services commensurate in quality to the traditional switched circuit providers, or at least as good a quality as cell phone providers can offer, are now getting close to being finalized by the Internet Engineering Task Force.

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