Broadcom Sues Microtune Alleging Infringement of Three Additional Broadcom Patents

1/28/2003 - In a complaint filed on Friday, January 24, Broadcom Corporation (Nasdaq: BRCM) alleges that tuners, power amplifiers and BluetoothTM products made by Texas-based Microtune, Inc. (Nasdaq: TUNE) infringe three Broadcom patents.

The lawsuit, filed in the U.S. District Court for the Northern District of California, San Jose Division, is the second filed by Broadcom against Microtune in the past eight months. On July 15, 2002, Broadcom filed a lawsuit in the U.S. District Court for the Eastern District of Texas alleging that solid-state RF tuner products made by Microtune infringe a fourth Broadcom patent. Trial in that case is scheduled to begin in January 2004.

The new lawsuit addresses a set of patents relating to electrostatic discharge protection (ESD) circuits and Bluetooth and other wireless technologies. The patents are U. S. Patent No. 6,445,039B1, entitled “System And Method For ESD Protection,” and U. S. Patent Nos. 5,682,379 and 6,359,872, both entitled “Wireless Personal Local Area Network.” The earlier lawsuit alleges infringement of U.S. Patent No. 6,377,315, entitled “System And Method For Providing A Low Power Receiver Design.”

Both lawsuits seek a permanent injunction barring manufacture and sale of the infringing products by Microtune as well as monetary damages, including treble damages for willful infringement.

Broadcom, an early pioneer in the development of tuner-on-a-chip technology, today has an intellectual property portfolio of approximately 250 issued U.S. patents, including approximately 100 patents relating to tuner, mixed signal and wireless technologies, and more than 1,700 additional pending U.S. patent applications.

About Broadcom
Broadcom Corporation is the leading provider of highly integrated silicon solutions that enable broadband communications and networking of voice, video and data services. Using proprietary technologies and advanced design methodologies, Broadcom designs, develops and supplies complete system-on-a-chip solutions and related hardware and software applications for every major broadband communications market. Our diverse product portfolio includes solutions for digital cable and satellite set-top boxes; cable and DSL modems and residential gateways; high-speed transmission and switching for local, metropolitan and wide area networking; home and wireless networking; cellular and terrestrial wireless communications; Voice over Internet Protocol (VoIP) gateway and telephony systems; broadband network processors; and SystemI/OTM server solutions. These technologies and products support our core mission: Connecting everything®.

Broadcom is headquartered in Irvine, Calif., and may be contacted at 1-949-450-8700 or at

Broadcom®, the pulse logo, Connecting everything®, and SystemI/OTM are trademarks of Broadcom Corporation and/or its affiliates in the United States and certain other countries. BluetoothTM is a trademark of the Bluetooth Special Interest Group (SIG).

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