Sigma Designs Buying Smart Network Chipmaker Zensys

California chipmaker Sigma Designs is getting into the smart device and energy management market. The company announced today that it signed an agreement to buy Zensys, which makes wireless mesh network chips for residential and light commercial building control systems. Sigma, which makes multimedia chips for TVs, DVDs and computers, said it’s an all-cash deal but did not release the financial terms of the agreement.Zensys, also based in California, makes single-chip radio frequency (RF) systems using its proprietary Z-Wave communications protocol, which Sigma says has already been used in more than 250 smart products around the world. Wirelessly networked devices can be monitored and controlled for energy management, helping to lower energy costs by controlling lighting, heating, cooling and other systems in buildings.

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