Cortina Systems has bought Storm Semiconductor to expand into home networking products. The price of the deal was not disclosed.

Mountain View, Calif.-based Storm Semiconductor makes chips for moving video and other data around the home. The company previously raised venture capital from three Taiwanese venture firms: TSC Venture Management, Birch Venture Capital and Faraday Technology Corp.

Cortina has now acquired three companies. Last year it bought ImmenStar and before that it paid $115 million for Intel’s optical networking unit. To date, Cortina has raised $250 million in four rounds.

Cortina’s investors include Alloy Ventures, Bridgescale Partners, Canaan Partners, DCM, El Dorado Ventures, Hotung Capital, Institutional Venture Partners, Invesco, Jafco Ventures, Kodiak Venture Partners, Morgenthaler Ventures, Redpoint Ventures, Sofinnova Ventures and Vedanta Capital.