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Ralink Technology Corp. ("Ralink," Chinese name 雷凌) is a Taiwanese fabless semiconductor designer founded in 2001 in Cupertino, California, and subsequently headquartered in Hsinchu County, Taiwan, with branch offices in the US, Europe, Japan and China. It listed on the Taiwan Stock Exchange in April 2008 under ticker 3534. Per a company investor presentation, Ralink had roughly 600 employees worldwide and a market capitalization of about US$620 million shortly before its acquisition. In March 2011, MediaTek Inc. agreed to acquire Ralink via a 1-for-3.15 share swap; the merger took effect October 1, 2011, and Ralink became a wholly owned MediaTek subsidiary.
Ralink designed wireless LAN and broadband access chipsets. Its main lines were IEEE 802.11 Wi-Fi chipsets (including MIMO and single-chip "router-on-chip" and client solutions) and xDSL/ADSL CPE chipsets acquired through its 2010 merger with Trendchip. It also offered combined Wi-Fi/Bluetooth products. The company reported roughly 12–15% global Wi-Fi chipset share and 22–25% xDSL chipset share, with design wins in PCs, broadband gateways, digital TVs, Blu-ray players and set-top boxes.
Litigation posture: Ralink appears in the database as a defendant only (0 plaintiff cases, 1 defendant case) — the profile of an operating company being sued rather than a patent assertion entity. Its single tracked matter is the USITC § 337 investigation Certain Audiovisual Components and Products Containing the Same (337-TA-837), filed by LSI Corporation and Agere Systems on March 12, 2012. Ralink was named a respondent alongside MediaTek entities, Funai Electric and Realtek Semiconductor. This is an ITC import investigation, not an Eastern District of Texas docket. Public ITC filings indicate LSI later moved to terminate the investigation as to MediaTek and Ralink after withdrawing its allegations against them.
Context: MediaTek's own financial reports describe the Ralink acquisition (goodwill of roughly NT$6.5 billion) as adding 802.11x Wi-Fi technology to its portfolio. Ralink also featured in separate N.D. California patent discovery proceedings involving Lantiq following the merger. Case data are limited to the one ITC matter above; no other tracked appearances exist.