1. Institute of VLSI Design, Zhejiang University, Hangzhou, China
2. Microaiot, Ltd., Hangzhou, China
3. Qiushi Academy of Advanced Studies, Zhejiang University, Hangzhou, China
4. College of Computer Science and Technology and the State Key Laboratory of Brain Machine Intelligence, Zhejiang University, Hangzhou, China
5. Institute of VLSI Design and the State Key Laboratory of Brain Machine Intelligence, Zhejiang University, Hangzhou, China