Software Synthesis for DSP Using Ptolemy
In 1990, he was awarded an ONR Doctoral Fellowship, a Hertz Research Fellowship Grant, an AT&T Bell Laboratories CRFP Fellowship, and an NSF Fellowship. In the summer of 1990 he worked at AT&T Bell Laboratories in Murray Hill, New Jersey developing numerical root finding techniques for LPC root extraction. He received his Masters of Science in Electrical Engineering from U.C. Berkeley in the Spring of 1993.
Soonhoi Ha (sha@ohm.EECS.Berkeley.EDU) received the B.S. (honors) and the M.S. degrees in electrical and electronics engineering from Seoul National University, Seoul, Korea, in 1985 and 1987, respectively. He received the Ph.D. degree in the Electrical Engineering and Computer Science Department at U.C. Berkeley in 1992. He is currently a post doctoral research engineer in the same department at U.C.Berkeley.
He has been actively involved in the Ptolemy project since its birth. Ptolemy is a software environment that supports heterogeneous system specification, simulation, and design. He implemented the simulation kernel for dynamic dataflow graph and discrete event system, and the basic interface for mixed paradigm simulation. He also implemented several multiprocessor scheduling algorithms. His recent efforts are focused on generating C-codes for multiprocessor target architectures, workstations, and AT&T DSP3 machine, from the large grain data flow program representation. He is a member of IEEE.
Edward A. Lee (eal@EECS.Berkeley.EDU) research activities include parallel computation, architecture and software techniques for programmable DSPs, design environments for development of real-time software and hardware, and digital communication. He was a recipient of a 1987 NSF Presidential Young Investigator award, an IBM faculty development award, the 1986 Sakrison prize at U.C. Berkeley for the best thesis in Electrical Engineering, and a paper award from the IEEE Signal Processing Society. He is co-author of "Digital Communication", with D. G. Messerschmitt, Kluwer Academic Press, 1988, and "Digital Signal Processing Experiments" with Alan Kamas, Prentice Hall, 1989, as well as numerous technical papers. His B.S. degree is from Yale University (1979), his masters (S.M.) from MIT (1981), and his Ph.D. from U.C. Berkeley (1986).
From 1979 to 1982 he was a member of technical staff at Bell Telephone Laboratories in Holmdel, New Jersey, in the Advanced Data Communications Laboratory, where he did extensive work with early programmable DSPs, and exploratory work in voiceband data modem techniques and simultaneous voice and data transmission. He is chairman of the VLSI Technical Committee of the Signal Processing Society, co-program chair of the 1992 Application Specific Array Processor Conference, a senior member of the IEEE, and on the editorial board of the Journal on VLSI Signal Processing.
Joseph Buck (jbuck@ohm.berkeley.edu) is a graduate student and Ph.D. candidate in the Electrical Engineering and Computer Sciences Department at U.C. Berkeley. His research interests include multiprocessor scheduling of real-time digital signal processing algorithms and design environments for simulation and software development. He received the B.E.E. degree from Catholic University of America (1978) and the M.S. in computer science from George Washington University (1981). From 1979 to 1984 he participated in research in speech coding, speech noise reduction, and speech recognition at the Naval Research Laboratory in Washington, DC.
From 1984 to 1989 he worked at Entropic Speech, Inc., Cupertino, CA, on real-time implementations of speech compression algorithms for telephony applications, as well as a widely used set of tools for digital signal processing research on Unix systems. Convinced that there had to be a better way of developing real-time digital signal processing software, and inspired by Edward Lee's Gabriel project (see references), he returned to academia, where he is having considerably more fun.