Adam Lender was the Head of Advanced Research and Development at GTE Network Systems, where he made tremendous contributions to bandwidth-efficient signaling methods. To this end, he researched digital voiceband communication, including digital subscriber loops, compressed speech transmission, adaptive equalization, and echo cancellation. On digital radio modems, he invented the renowned duobinary technique of channel signal coding. Dr. Lender's work has been widely applied in both communication environments (including cable, wireless, and optical fiber) and high-density magnetic disk recording. It continues today to be regarded as one of the outstanding examples of clever signal design leading to enhanced performance of communication and recording systems.
Dr. Lender received his B.S. and M.S. degrees in electrical engineering at Columbia University, and his Ph.D. from Stanford University. Dr. Lender died on April 1, 2003, at the age of 81.
Information as of 2003