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Wireless technology company Qualcomm Inc. on Monday said it is suing chip-maker Broadcom Corp. for alleged patent infringement in the latest of a series of legal disputes between the two companies. In the suit, filed Monday in federal court in San Diego, Qualcomm charges that Broadcom violated seven of its patents, which Qualcomm considers “essential” to the manufacturing standards of certain cellular and wireless network equipment. The complaint claims Broadcom is infringing on six patents related to integrated circuits for cell phones and violating one patent in making its semiconductors for Wi-Fi devices. Broadcom did not immediately respond to a request for comment. The suit marks the latest chapter in an ongoing patent dispute between the two companies. Earlier this month, Broadcom filed a suit charging Qualcomm with violating domestic antitrust laws. It alleged that Qualcomm holds a monopoly in code-division multiple access, or CDMA, technology, a widely used wireless technology that Qualcomm licenses to cell-phone makers. San Diego-based Qualcomm responded the next day by calling the charges “meritless” and threatening to file litigation of its own. In May, Irvine, Calif.-based Broadcom filed two patent lawsuits against Qualcomm. The U.S. International Trade Commission is also looking into whether Qualcomm engaged in unfair trade practices by importing chips and other products that infringe on Broadcom patents. Copyright 2005 Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.

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