Teknovus, a provider of Ethernet optical networking chips, has brought in $5.6 million in convertible promissory notes, preferred and common stock, according to a filing with the SEC. Based in Petaluma, Calif., the company is backed by Partech International, Focus Ventures, Galleon Group, Itochu Technology Ventures, U.S. Venture Partners, Vision Venture Capital, Mitsubishi, Technology Alliance Investment and Samsung Ventures America.