In Pictures: Meet the 2014 Internet Hall of Fame Inductees

Father of the Mouse, Father of DSL among honorees

John Cioffi Dr. Cioffi is best known as “the father of DSL.” It was his research that made the digital subscriber line (DSL) practical, and it has led to more than 400 publications and more than 100 pending or issued patents, many of which are licensed. He designed the world’s first Asymmetric Digital Subscriber Line (ADSL) and Very-high-speed Digital Subscriber Line (VDSL) modems. In 1991, Cioffi took a leave of absence from his job as a professor at Stanford University to found Amati Communications Corp. based on these DSL designs. There, he and his colleagues built the world’s first DSL modem. Cioffi later returned to Stanford, where he began researching Dynamic Spectrum Management (DSM). In 2003, Cioffi founded DSM company Adaptive Spectrum and Signal Alignment.

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