Quantenna, maker of chipsets used to improve video functionality in televisions and laptop, has added an unspecified amount to its third round of funding, which previously amounted to $13.8 million.

Based in Fremont, Calif., the company has now raised $44 million to date ($2 million more than it reported having in April), according to VentureWire. Its backers include Grazia Equity, Sequoia Capital, Sigma Partners, Southern Cross Venture Partners and Venrock.

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