Welcomes affirmation of validity of one of SiRF's patents; requests review of initial determination of non-infringement by Broadcom of SiRF's patent

SAN JOSE, Calif., June 30 /PRNewswire-FirstCall/ -- SiRF Technology Holdings, Inc. (NASDAQ: SIRF), a leading provider of GPS-powered location platforms, today announced that SiRF has petitioned the International Trade Commission (ITC) to review aspects of an Administrative Law Judge's Initial Determination in SiRF's ITC litigation against Broadcom alleging that Broadcom has infringed SiRF's intellectual property. Specifically, the Administrative Law Judge's Initial Determination relating to two of SiRF's patents was favorable in finding that one of the two asserted SiRF patents was valid. SiRF's wholly owned subsidiary, SiRF Technology, Inc. has petitioned the ITC to review those aspects of the Initial Determination that found that such patent was not infringed by Broadcom.

"SiRF was founded in 1995 with a vision to bring the benefits of GPS to mainstream consumers," said Kanwar Chadha, founder of SiRF Technology. "As a pioneer and leader in GPS-enabled location technology, SiRF has developed a broad range of innovations to solve many fundamental location challenges, and these innovations are protected by a strong patent portfolio."

During the last 13 years, SiRF has built a patent portfolio in the location technology field that includes more than 250 patents awarded worldwide and more than 370 additional patents pending. SiRF's patent portfolio also includes some of the early GPS patents that SiRF acquired through its acquisition of Conexant's GPS business in 2003, and Motorola's GPS assets in 2005.

About SiRF Technology Holdings, Inc.

SiRF Technology Holdings, Inc. develops and markets location platforms based on semiconductor and software products that are designed to enable location-awareness utilizing GPS and other location technologies, enhanced by wireless connectivity and multimedia capabilities for high-volume mobile consumer devices and commercial applications. SiRF's technology has been integrated into a wide range of mobile consumer devices such as automobile navigation systems, portable navigation devices (PNDs), mobile phones, mobile computers, GPS-based peripherals and handheld GPS devices, and into commercial applications such as location servers, asset tracking devices and fleet management systems. SiRF markets and sells its products in four target platforms: wireless handheld devices such as mobile phones; automotive electronics systems, including navigation and telematics systems; consumer electronics products such as recreational GPS handhelds, mobile gaming machines, digital cameras and wearable devices; and mobile computing systems, including personal digital assistants, notebook computers, universal mobile personal computers (UMPCs) and mobile internet devices. Founded in 1995, SiRF is headquartered in San Jose, California, and has sales offices, design centers and research facilities around the world. The company 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.

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 the benefits and features of our products and the strength of our patent portfolio, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Words such as "to," "being," "possible," "may," "will," "addresses," "designed to," "expand", "provide," "believe," 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, demand and market acceptance for our products and those of our customers, the market for GPS-based location awareness, risks associated with the semiconductor industry and other risks and uncertainties discussed in the SiRF's Annual Report on Form 10-K for the fiscal year ended December 31, 2007, SiRF's Quarterly Report on Form 10-Q for the quarter ended March 31, 2008 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.

SiRF, the SiRF orbit logo, SiRFstar, SiRFLoc and SiRFDRive are registered trademarks of SiRF Technology, Inc. SiRFPrima, SiRFInstant, SiRFInstantFix, SiRFDiRect, and SiRFecosystem are trademarks of SiRF Technology, Inc. All other corporate names or trademarks are the properties of their respective owners.

Web site: http://www.sirf.com//