“New Opportunities in Non-Uniform Sampling” by Professor Mike Shuo-Wei Chen, PhD, Department of Electrical and Computer Engineering, University of Southern California, USA.  IEEE Distinguished Lecturer.

Date:  July 23, 2022 (Saturday)
Time:  10:00 hrs till 11:30 hrs (UTC+8)
Google Meet:  https://meet.google.com/wfr-qxgw-hns
RSVP:  https://forms.gle/SeFJmMUV9ds1LdR96

All are cordially invited to attend. Admission is FREE.

Abstract

Uniform sampling has been widely adopted in today’s circuit designs, ranging from data converters (ADC and DAC), and discrete-time signal processing (such as switched-capacitor filters). It is a well-developed processing technique that leads to many circuit architectures. However, Nyquist theory does not limit us to processing the samples at a uniform time grid so long as the average sample rate is sufficiently high, i.e., no loss of signal information. Why not sample the analog signal in a non-uniform time grid? What is the benefit by doing so? What is the underlying signal processing implication? In this talk, I will provide a background overview and explore new opportunities in non-uniform sampling (NUS) along with several silicon prototypes (from data converter to RF transceiver) that leverage non-uniform sampling. Thanks to the unique properties of NUS, there are interesting possibilities for future circuit- and system-level architectural innovations.

Speaker

Dr Mike Shuo-Wei Chen is a professor in Electrical Engineering Department at University of Southern California (USC) and holds the Colleen and Roberto Padovani Early Career Chair position. He received the B.S. degree from National Taiwan University, Taipei, Taiwan, in 1998 and the M.S. and Ph.D. degrees from University of California, Berkeley, in 2002 and 2006, all in electrical engineering.

As a graduate student, he proposed and demonstrated the asynchronous SAR ADC architecture, which has been adopted in industry today for low-power high-speed analog-to-digital conversion products. After joining USC in 2011, he leads an analog mixed-signal circuit group, focusing on high-speed low-power data converters, frequency synthesizers, RF/mm-wave transceiver designs, analog circuit design automation, bio-inspired computing, non-uniformly sampled circuits and systems. From 2006 to 2010, he worked on mixed-signal and RF circuits for various wireless communication products at Atheros Communications (now Qualcomm).

Dr. Chen was the recipient of Qualcomm Faculty Award in 2019, NSF Faculty Early Career Development (CAREER) Award, DARPA Young Faculty Award (YFA) both in 2014, Analog Devices Outstanding Student Award for recognition in IC design in 2006 and UC Regents’ Fellowship at Berkeley in 2000. He also achieved an honorable mention in the Asian Pacific Mathematics Olympiad, 1994. Dr. Chen has been serving as an associate editor of the IEEE Solid-State Circuits Letters (SSC-L), IEEE Transactions on Circuits and Systems II: Express Briefs (TCAS-II), as well as a TPC member in IEEE Solid-State Circuits Society conferences, notably the IEEE International Solid-State Circuits Conference (ISSCC), IEEE Symposium on VLSI Circuits (VLSIC), and IEEE Custom Integrated Circuits Conference (CICC).