Education:

• 1993 Ph.D. Electrical and Computer Engineering, University of Arizona.
• 1989 Ph.D. Speech and Hearing Sciences , Ohio State University.
  

Experiences:

• 1989-99, Assistant/Associate Professor, Dept. of Speech and Hearing Sciences and Electrical and Computer Engineering, University of Arizona.
• 1995,1996, Visiting Scientist, Research Laboratory of Electronics, Massachusetts Institute of Technology.
• 1998, Visiting Scientist, Visual Computing Laboratory, Hewlett Packard at Palo Alto.
• 1999-2019, Visiting Scientist, Principal Engineer, Qualcomm Inc. San Diego

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