2023-08-16T17:05:03+08:002023-08-16|News&Events, Events|

The Distinguished Lecture on “Ultra low power AI accelerator design for always-on keyword spotting application ” will take place as follows:

Date: 18 August 2023 (Friday)

Time: 14:30 – 16:00 

Venue: Research Building N21, G/F, G013

The speaker is:

Prof. WANG Wei, Deputy dean, School of Integrated Circuits, Peking University


The Lecture is:

Ultra low power AI accelerator design for always-on keyword spotting application



As a widely used speech-triggered interface, deep-learning-based keyword spotting (KWS) chips are required for wake-up tasks. The always-on characteristic requires KWS to achieve ultra-low power while keeping good accuracy. In this talk, I will show the design challenges and three case studies toward ultra low power KWS chip design. First, a digital Keyword-Spotting Chip Using Serial-FFT-based MFCC and Binarized Depthwise Separable CNN, which for the first time pushed its power below 1μW.  Second, a sub-μW KWS chip with an acoustic activity detection (AAD) to achieve both low power and decent detection accuracy. Third, a full-system Near-Microphone Keyword-Spotting Chip, which integrated the analog front-end into the chip, along with optimized MFCC and Temporal Depthwise Separable CNN to achieve a full-system solution with only 608nW.



SHAN Weiwei (Ph.D., Professor) received the Ph.D. degree in microelectronics from Tsinghua University, Beijing, China, in 2009, and joined Southeast University as a faculty in the same year. She was a Visiting Professor with Columbia University, New York, NY, USA, from 2017 to 2019.

She is currently a Professor at the National ASIC Center, Southeast University, Nanjing, China. Her research mainly focuses on variation resilient, adaptive VLSI circuits, ultra-low-power SoC design, and countermeasure techniques of security circuits. She serves as technical committee in several international conferences such as IEEE CICC, A-SSCC, ICTA and so on. She has authored or coauthored over 50 technical articles in conferences and journals, including International Solid-State Circuits Conference (ISSCC), the Journal of Solid-State Circuits, IEEE Transactions on Circuits and Systems I: Regular Papers (TCASI)/IEEE Transactions on Circuits and Systems II: Express Briefs (TCASII), IEEE Transactions on Computer Aided Design of Integrated Circuits & Systems (TCAD), and authorized over 30 invention patents.


For more details, kindly find the event poster, abstract and bio.