Father of DSL, a Brooklyn Tech and NYU Poly alum, dies at 82

Joseph Lechleider died in Philadelphia last weekend. The former Bell Telephone researcher is the man who figured out that asymmetrical digital traffic over copper wires faced less interference than symmetrical speeds. That insight enabled telephone companies to turn their existing copper infrastructure to the internet age, as the New York Times explains in Lechleider’s obituary.
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Lechleider went to Brooklyn Technical High School and then got his Ph.D. at the school that’s now called the NYU Polytechnic School of Engineering (formerly, the Polytechnic Institute of Brooklyn). He died in Philadelphia.
Lechleider’s contribution to speeding internet speeds won him a spot in the National Inventors Hall of Fame.