SiRF Selected for Ocean Tomo 300 Patent Index

SiRF Selected for Ocean Tomo 300 Patent Index

Index First to Track Stock Performance for Companies with Valuable Intellectual Property Assets

SiRF Technology Holdings, Inc. (NASDAQ: SIRF) , a leading provider of GPS-enabled location technology, announced today that it has been chosen for the new Ocean Tomo 300 Patent Index, reflecting the significant value of the Company’s intellectual property. The Index, billed as the “first major, broad-based equity index to be launched in 35 years,” is priced and published by the American Stock Exchange and became effective on November 1, 2006.

“SiRF is gratified to have been selected as a constituent company in the Ocean Tomo 300 Patent Index,” said Dr. Michael Canning, SiRF’s president and chief executive officer. “Although the company has only been in business since 1995 and public for less than three years, I am pleased to see that the value of the Company’s patent portfolio is being recognized along with many older and larger publicly traded technology leaders.”

The Index represents a portfolio of 300 companies “that own the most valuable patents relative to their book value,” according to a joint press release from Ocean Tomo and the American Stock Exchange. In addition to SiRF, the Index includes companies such as Apple, IBM, Motorola and Intel.

“Being the first to develop and patent innovative technology that brings GPS-enabled location-awareness to mass consumer markets is critical to our growth,” said Nicolas S. Gikkas, SiRF’s Chief Intellectual Property Counsel. “We believe inclusion in the Ocean Tomo 300 Patent Index is a testament to the valuable inventions created every day by SiRF engineers and scientists who continue to push the location technology envelope.” SiRF owns more than 190 U.S. and foreign patents focused on location technology.

“We are pleased to have SiRF Technology Holdings, Inc. as an inaugural constituent of the Ocean Tomo 300 Patent Index,” said James E. Malackowski, President and CEO of Ocean Tomo, LLC, developers of the Index. “As of January 10, 2007, with a market capitalization of $1.35 billion, SiRF’s intangible value as a percentage of their market capitalization stands at 83%. One of SiRF’s highest rated patents, U.S. Pat. No. 6,393,046, is highlighted on the SiRF company dashboard at http://www.oceantomoindexes.com/. This patent, filed in the electrical field, covers a spread spectrum receiver with multi-bit correlator and has an IPQ(TM) score of 217.7 and an A+ rating.”

About SiRF Technology Holdings, Inc.

SiRF Technology Holdings, Inc. develops and markets semiconductor and software products that are designed to enable location-awareness utilizing GPS and other location technologies, enhanced by wireless connectivity capabilities such as Bluetooth, for high-volume mobile consumer devices and commercial applications. SiRF’s technology has been integrated into mobile consumer devices, such as automobile navigation systems, mobile phones, PDAs, GPS-based peripherals and handheld GPS navigation devices, and into commercial applications, such as location servers, asset tracking devices and fleet management systems. SiRF markets and sells its products in three target platforms: wireless handheld devices, such as mobile phones; automotive electronic systems, including navigation and telematics systems; and consumer and compute devices, including personal digital assistants, notebook computers, recreational GPS handhelds, mobile gaming machines, digital cameras and watches. Founded in 1995, SiRF is headquartered in San Jose, California, and has sales offices, design centers and research facilities around the world. SiRF Technology Holdings, Inc. trades on the NASDAQ Stock Exchange under the symbol SIRF. Additional information about SiRF and its location technology solutions can be found at http://www.sirf.com/.

About the Ocean Tomo 300 Patent Equity Index

The Index selection methodology identifies six companies within each of 50 size and style groups, reflecting a broad spectrum of market capitalizations and investment styles, including value, relative value, blend, growth at a reasonable price (GARP) and growth by decile, that have the highest ratio of patent value to book value. The analytical engine used to evaluate the value of each company’s patent portfolio is Ocean Tomo’s PatentRatings software, which calculates the relative attractiveness of the more than four million patents issued by the U.S. Patent and Trademark Office since 1983, and which is widely recognized by the intellectual property valuation industry.

Forward-Looking Statements:

Except for the historical information contained herein, the matters set forth in this press release, including, but not limited to, statements regarding SiRF’s inclusion in the Ocean Tomo 300 Patent Index and the value of SiRF’s inventions are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as “intend,” “believe,” “seeks,” and similar expressions are intended to identify forward- looking statements. These statements are not guarantees of future performance and should not be considered as an indication of future performance. SiRF’s actual results could differ materially from those discussed in these forward- looking statements as a result of risks and uncertainties, including, among others, our ability to protect our intellectual property, including our patents and other proprietary rights, and other risks and uncertainties discussed in the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2006 and from time to time in SiRF’s SEC reports These forward- looking statements speak only as of the date hereof. We do not undertake any obligation to update forward-looking statements.

Editors Note: SiRF, SiRFstar and the SiRF orbit design are registered trademarks of SiRF Technology, Inc. Ocean Tomo 300 and PatentRatings are trademarks of Ocean Tomo, LLC. Other trademarks are property of their respective companies.
Website: http://www.sirf.com/
Website: http://www.oceantomoindexes.com/