O2Micro International Limited (Nasdaq:OIIM), a leading supplier

of innovative power management ICs to mobile computer

and communications manufacturers, has been granted 42 claims under

United States patent number 6,226,237 for its AudioDJ(TM) product.

Sterling Du, President & CEO of O2Micro stated, "This is a very

significant architectural patent for power management in mobile

platforms. We are very pleased with the breadth of the claims awarded

in the patent."


Since its introduction in 1998, AudioDJ(TM) has become an

internationally recognized product being used by most leading notebook

suppliers worldwide.


This power management IC unleashes the power of music in notebooks

by allowing CD play while the notebook is OFF. This unique

non-intrusive chip design works with traditional ISA/PCI based

multimedia chip-sets while minimizing the notebook power consumption

to just the CD-ROM portion. This design significantly conserves

battery power and extends CD playtime up to 16 hours without

recharging the battery.


"Based on this patented technology, O2Micro is already expanding

into more advanced leading edge products for mobile products including

MP3 functionality," stated Reginia Chan, Vice President of the

IntelligentDJ(TM) Group.


About O2Micro


Founded in March 1995, O2Micro designs, develops and markets

innovative power management and security components for mobile

communication, computer, Internet appliance, and LCD products.

Products include AudioDJ(TM), SmartCardBus(R) for secure on line

e-commerce, LCD Backlight Inverters and Battery Management IC's.


O2Micro maintains an extensive portfolio of intellectual property

with 268 patent claims granted, and over 280 more pending. The company

maintains offices worldwide. Additional company and product

information can be found on the company website at www.o2micro.com.


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 1955. 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

development process, and errors in the products. You are also referred

to the documents filed by O2Micro with the SEC from time to time,

including but not limited to the Form F-1 in connection with the

company's initial public offering in August 2000, which identify

important risk factors that could cause actual results to differ from

those contained in the forward-looking statements.



Grace Louh, 408/987-5920 Ext. 8051