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Patent Issued for O2Micro's Battery Voltage Monitoring Methodology

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GEORGE TOWN, Grand Cayman, Feb. 19, 2013 (GLOBE NEWSWIRE) -- O2Micro® International Limited (Nasdaq:OIIM), a global leader in the design, development and marketing of high-performance integrated circuits and solutions, today announced that it was issued 19 claims under United States patent number 8,310,206 and 20 claims under United States patent number 8,294,424 for its Battery Voltage Monitoring methodology. Patent number 8,294,424 is a continuation of the invention issued October 2012 under United States patent number 7,825,627.

This patented methodology monitors battery cell voltage. If a predefined low voltage threshold is reached, a safety function is initiated.

Bill Densham, strategic marketing manager, O2Micro, said, "O2Micro's patented methodology provides a quick under-voltage detection scheme to safeguard the battery in a timely fashion, unlike conventional circuitries."

About O2Micro

Founded in April 1995, O2Micro develops and markets innovative power management components for the Computer, Consumer, Industrial, Automotive and Communications markets. Products include LED General Lighting, Backlighting, Battery Management and Power Management.

O2Micro International maintains an extensive portfolio of intellectual property with 22,390 patent claims granted, and over 24,000 more pending. The company maintains offices worldwide. Additional company and product information can be found on the company website at www.o2micro.com.

O2Micro, the O2Micro logo, and combinations thereof are registered trademarks of O2Micro. All other trademarks or registered trademarks are the property of their respective owners.

Statements made in this release that are not historical, including statements regarding O2Micro's or management's intentions, hopes, beliefs, expectations, representations, projections, plans or predictions of the future, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements involve risks and uncertainties that may cause actual results to differ materially from those set forth in these statements. Factors that could cause actual results to differ materially include risks and uncertainties such as reduced demand for products of electronic equipment manufacturers which include O2Micro's products due to adverse economic conditions in general or specifically affecting O2Micro's markets, technical difficulties and delays in the developments process, and errors in the products. You are also referred to the Form F-1 in connection with the company's initial public offering in August 2000, Form F-3 in connection with the company's public offering in November 2001, and the annual reports on Form 20-F, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements. The company assumes no obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise.

The O2Micro International Limited logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=6567

CONTACT: Scott L. Anderson Director of Investor Relations, O2Micro Phone: 408.987.5920, x8888 Email: scott.anderson@o2micro.com

Source:O2Micro International Limited