Biographical note

Howard W. Johnson is president of Olympic Technology Group, Inc., of Redmond, Washington, a digital electronic design and consulting organization. Before founding the firm, he was Manager of Technology and Advanced Development at Ultra Network Technologies, a manufacturer of gigabit-per-second local area networks for supercomputers. Since obtaining his Ph.D. in 1982 from Rice University, he has specialized in the design of high-speed digital communications and digital signal processing systems. Martin Graham has been a Professor of Electrical Engineering and Computer Sciences at the University of California at Berkeley since 1966, where he teaches the design of reliable and manufacturable electronic systems.