Chi-Ying TSUI (PhD, Southern California, 1994)

Professor

E-mail "eetsui@ee.ust.hk"

Professor Tsui obtained his BS degree in Electrical Engineering from University of Hong Kong, and MS and PhD degrees in Computer Engineering from University of Southern California. He joined the  Department of Electrical and Electronic Engineering, Hong Kong University of Science and Technology in 1994 and is currently a Professor in the department.

 

His research interests includes designing VLSI architectures for low power multimedia and wireless applications, developing power management circuits and techniques for embedded portable devices and ultra-low power systems. Prof. Tsui has published more than 150 referred technical journal and conference papers. He received the Best Paper Awards from the IEEE Transactions on VLSI Systems in 1995, IEEE/ACM ISLPED in 2007,  IEEE DELTA 2008, and supervised the Best Student Paper Award of the 1999 IEEE ISCAS. He also received the Design Awards in the IEEE ASP-DAC University Design Contest in 2004 and 2006.  He holds 7 US patents.

 

He is the General Chair of  the 19th IFIP/IEEE VLSI-SOC 2011 and he served on the organization committee of ASP-DAC'99. He served in the technical program committees of various conferences including DAC, ISLPED, VLSI, ASP-DAC and ESTIMEDIA. He is an associate editor of Integration, the International VLSI Journal. He is the co-founder of Perception Digital Limited, a listed-company in Hong Kong.  He also consulted for local and multinational companies. He is an IEEE member.

 

 

Research Interests

VLSI design and CAD algorithms for energy efficient high performance microprocessors; power analysis and optimization for CMOS circuits; low power embedded systems design; VLSI design for multimedia; high-speed network and wireless application.

 

Book Chapters

1.     Chi Ying Tsui, “Technology Dependent Optimization for Low Power”, in Logic Synthesis for Low Power VLSI Design, by Sasan Iman and Massoud Pedram, Publisher: Kluwer Academic Publisher

 

Recent Journal Publications

1.     H. Shao, Chi-ying Tsui, A Low Energy Consumption Multi-stage Level Converter for Sub-threshold Logic, accepted for publication IET Proceedings on Computer and Digital Techniques,

2.     Chao Lu, Chi Ying Tsui and Wing Hung Ki, Vibration Energy Scavenging System with Maximum Power Tracking for Micro Power Applications, accepted for publication in IEEE Transactions on VLSI Systems

3.     Jun Yin, Jun Yi, Man Kay Law, Yunxiao Ling, Man Chiu Lee, Kwok Ping Ng, Bo Gao, Howard C. Luong, Amine Bermak, Mansun Chan, Wing-Hung Ki, Chi-Ying Tsui, Matthew Yuen, A System-On-Chip EPC Gen-2 Passive UHF RFID Tag with Embedded temperature sensor, in IEEE Journal of Solid States and Circuits, Vol. 45, Issue 11, Nov. 2010, pp. 2404 - 2420

  1. Feng Liu, Chi-ying Tsui and Ying Jun (Angela) Zhang, Joint Routing and Sleep Scheduling for Lifetime Maximization of Wireless Sensor Networks, IEEE Transactions on Wireless Communications, Vol. 9, No. 7, July 2010, pp. 2258-2267
  2. Jin Jie and Chi-ying Tsui, An Energy Efficient Layered Decoding Architecture for LDPC Decoder, IEEE Transactions on VLSI Systems Vol. 18, No. 8, Aug 2010, pp. 1185-1195
  3. H. Shao, Chi-ying Tsui and Wing Hung Ki, The Design of a Micro Power Management System for Applications using Photovoltaic Cells with the Maximum Output Power Control, IEEE Transactions on VLSI Systems, Vol. 17 No. 8, August 2009, pp. 1138-1142
  4. Feng Su, Wing Hung Ki and Chi Ying Tsui, Regulated Switched-Capacitor Doubler with Interleaving Control for Continuous Output Regulation, IEEE Journals on Solid States and Circuits, Vol. 44, No. 4, April 2009, pp. 1112-1120
  5. *M. Zhou, Chi-ying Tsui and Ming-Lun Gao, IPqML: An IP Qualification Architecture Based on QIP Standard, Journal of Computer-Aided Design & Computer Graphics (in Chinese), Vol. 20, No. 12, Dec. 2008, pp. 1563-1568
  6. W. Wang, S. Lou, K. Chui, S. Rong, C.F. Lok, H. Zheng, H.T. Chan, H.T.S.W. Man, H.C. Luong, H.C. V.K. Lau and C.Y. Tsui, A Single-Chip UHF RFID Reader in 0.18-mm CMOS” in IEEE Journal of Solid States and Circuits, Vol. 43, No. 8, Aug. 2008, pp. 1741-1754
  7. Feng Su, Wing-hung Ki and Chi-ying Tsui, Ultra Fast Fixed Frequency Hysteretic Buck Converter with Maximum Charging Current Control and Adaptive Delay Compensation for DVS Applications, IEEE Journal of Solid States and Circuits, Vol. 44, No. 4, April 2008, pp. 815-822
  8. Chi-ying Tsui, Robert S. K. Au and Ricky Choi, Minimizing the Total Power Consumption Using Least Leakage Vector Assisted Technology Mapping,  Integration, international VLSI Journal, Vol. 41, No. 1, Jan, 2008, pp. 76-86
  9. Jeff Lam and Chi-ying Tsui, A MUX-based High Performance Single Cycle CMOS  Comparator,  IEEE Transactions on Circuit and System II, VOl. 54, No. 7, July 2007, pp.591-595
  10. Jie Jin and Chi-ying Tsui, Low Power Limted-Search Parallel State Viterbi Decoder Implementation Based on Scarce State Transition,  IEEE Transactions on VLSI Systems, VOl. 15, No. 10, October, 2007, pp 1172-1176
  11. J. Yi, Wing-hung Ki, and Chi-ying Tsui, Analysis and Design Strategy of UHF Micro-Power CMOS Rectifiers for Micro-Sensor and RFID Application, IEEE Transactions on Circuit and System I, Vol. 54, No. 1, Jan 2007, pp. 153-166
  12. Y.-H. Lam, W.-H. Ki and C.-Y. Tsui, Integrated Low-Loss CMOS Active Rectifier for
    Wirelessly Powered Devices, IEEE Transactions on Circuits and Systems II, Vol. 53, No. 12, Dec. 2006, pp. 1378-1382
  13. Jeff Lam and Chi-ying Tsui, High performance single clock cycle CMOS comparator, IEE Electronic Letters, Vol. 42, No. 2, Jan., 2006, pp. 75-77
  14. Martin Yeung-Kei Chui, Wing-hung Ki and Chi-ying Tsui, A Programmable Integrated Digital Controller for Switching Converters with Dual–Band Switching and Complex Pole-Zero Compensation, IEEE Journal of Solid-states Circuits, Vol. 40, No.3, March 2005, pp. 772-780
  15. Dongsheng Ma, Wing-Hung Ki and Chi-ying Tsui, An integrated one-cycle control buck converter with adaptive output and dual loops for output error correction, IEEE Journal of Solid-states Circuits, Vol. 39, No. 1, Jan 2004, pp. 140-149
  16. #Dongsheng Ma, Wing-Hung Ki and Chi-ying Tsui, A Pseudo-CCM/DCM SIMO switching converter with freewheel switching, IEEE Journal of Solid-states Circuits, Vol. 38, No. 6, June 2003, pp. 1007-1014
  17. #Dongsheng Ma, Wing-Hung Ki, Chi-ying Tsui and Philip K.T.Mok, Single-inductor dual-output CMOS switching converters in discontinuous-conduction mode with time-multiplexing control, IEEE Journal of Solid State Circuits, Vol. 38, No 1, Jan 2003, pp. 89-100

 

Recent Conference Publications

1.      Zhiliang Qian, Ying Fei Teh, Chi-Ying Tsui, A Fault-tolerant NoC Design using Dynamic Reconfiguration of Partial-Faulty Routing Resources, accepted for publication in IEEE/IFIP International Conference on Very Large Scale Integration, Oct. 2011

2.      Ying Fei Teh, Zhiliang Qian, Chi-Ying Tsui, A Fault-Tolerant NOC using Combined Link Sharing and Partial Fault Link Utilization Scheme, accepted for publication in IEEE/IFIP International Conference on Very Large Scale Integration, Oct. 2011

3.      Wing-Hung Ki, Yan Lu, Feng Su and Chi-Ying Tsui, Design and Analysis of On-Chip Charge Pumps for Micro-Power Energy Harvesting Applications, accepted for publication in IEEE/IFIP International Conference on Very Large Scale Integration, Oct. 2011(invited paper)

4.      Youzhe Fan, James She, and Chi Ying Tsui, Efficient Iterative Receiver for LDPC Coded Wireless IPTV System, accepted for publication in IEEE International Conference in Image Processing, September 2011

5.      Hua Ding, Wei Wang, Zhiliang Qian, Chi-Ying Tsui, and Liangzhen Lai, Thermal Modeling of Three-Dimensional  Integrated Circuits Considering the Thermal Removal Capability of Different TSVs, in the proceedings of 3rd Asia Symposium on Quality Electronic Design (ASQED2011) July 2011

6.      Denis Guangyin Chen, Amine Bermak, and Chi Ying Tsui, A Low-complexity Image Compression Algorithm for Reducing Address-Event Representation (AER) Overhead in PWM Image Sensors, IEEE International Symposium on Circuits and Systems, pp. 2825-2828, May 2011

7.      Zhiliang Qian, Chi-Ying Tsui, Application Specific and Energy Balanced Algorithms in Network-on-chip Design, IEEE/ACM Asian South Pacific Design Automation Conference, pp. 449-454, Yokohama, Jan. 2011

8.      LiangZhen Lai, Hua Ding, Chi-Ying Tsui, Analysis of the Heat Removal Capability of the Power Distribution Network in 3-D ICs,  International  Microsysstems, Packaging, Assembly and Circuits Technology, pp. 1-4, Oct. 2010

9.      Hui Shao, Chi-Ying Tsui, Wing-Hung Ki, A Single Inductor DIDO DC-DC Converter for Solar Energy Harvesting Applications using band-band control, IEEE/IFIP International  Conference on VLSI and Systems of Chip, pp. 167-172, Madrid, Spet. 2010

10.   Yunxiao Ling, Jun Yi, Chi-ying Tsui and Wing-Hung Ki, System Level Power Optimizations for EPC RFID Tags to Improve Sensitivity Using Load Power Shaping and Operation Scheduling, IEEE International  Symposium on Circuits and Systems, pp. 3012-3015, Paris, May 2010

11.   Jun Yin, Jun Yi, M Law, M. Ling, P. Lee, B. Ng, B. Gao, H.C. Luong, A. Bermak, M. Chan, W.H.Ki, Chi-ying Tsui and M. F. Yuen, EPC Gen-2 System-On-Chip Passive UHF RFID Tag with Embedded Temperature Sensor,  IEEE International Solid State and Circuits Conference, pp. 308-309, San Francisco, Feb. 2010

12.   Hui Shao, Chi-Ying Tsui, Wing-Hung Ki, Maximizing the Harvested Energy for Micro-power Applications through Efficient MPPT and PMU Design, IEEE/ACM Asian South Pacific Design Automation Conference, pp. 75-80, Taipei,  Jan. 2010 (invited paper)

13.   Hui Shao, Chi-ying Tsui and Wing-hung Ki, A Single Inductor Dual Input Dual Output DC-DC Converter with Hybrid Supplies for Solar Energy Harvesting Application, International Symposium on Low Power Electronics and Design, pp. 69-75, San Francisco, USA, 19-21 August 2009

14.   Dan Luo  and Chi-ying Tsui, A Hybrid Algorithm and its Re-configurable Architecture for MIMO Detector, IEEE Mid-west Symposium on Circuits and Systems, pp. 297-300, Cancun Mexico, August 2009

15.   Jun Yi, W. H. Ki, P. K.T. Mok and Chi-ying Tsui, Dual-Power-Path RF-DC Multi-Output Power Management Unit  for RFID Tags, IEEE VLSI Technology and Circuit Symposium, pp. 200-201, Kyoto, Japan, June 2009

16.   Jie Jin and Chi-ying Tsui, Improving the Hardware Utilization Efficiency of Partially Parallel LDPC Decoder with Scheduling and Sub-Matrix Decomposition, IEEE International  Symposium on Circuits and Systems, pp. 2233-2236, Taipei, May 2009

17.   Ricky Choi and Chi-ying Tsui, A Low Energy Two-Step Successive Approximation Algorithm for ADC Design, IEEE International  Symposium on Circuits and Systems, pp. 17-20, Taipei,  May 2009

18.   Hui Shao, Chi-ying Tsui and Wing-Hung Ki, An Inductor-less MPPT Design for Light Energy Harvesting Systems, IEEE/ACM Asian South Pacific Design Automation Conference, pp.101-102, Yokohama, Jan. 2009

19.   Hui Shao, Chi-ying Tsui and Wing-Hung Ki, Low Energy Level Converter Design for Sub-Vth Logics, IEEE/ACM Asian South Pacific Design Automation Conference, pp.107-108, Yokohama, Jan. 2009

20.   Jie Jin and Chi-ying Tsui, A Low Power Layered Decoding Architecture for LDPC Decoder Implementation for IEEE 802.11n LDPC Codes, International Symposium on Low Power Electronics and Design, pp. 253-258, Bangalore, India, August 2008

21.   Feng Su, Wing-Hung Ki and Chi-Ying Tsui, An SC Voltage Regulator with Novel Area-Efficient Continuous Output Regulation by Dual-Branch Interleaving Control Scheme, IEEE VLSI Technology and  Circuit Symposium pp. 136-137, Honululu, USA, 17-20, June 2008

22.   Jun Yi, Feng Su, Yat-Hei Lam, Wing-Hung Ki and Chi-Ying Tsui, An Energy-Adaptive MPPT Power Management Unit for Micro-Power Vibration Energy Harvesting, IEEE International Symposium on Circuits and Systems, pp. 2570-2573, 18-21 May 2008

23.   Ngok Man Sze, Feng Su, Yat-Hei Lam, Wing-Hung Ki and Chi-Ying Tsui, Integrated Single-Inductor Dual-Input Dual-Output Boost Converter, IEEE International Symposium on Circuits and Systems, pp. 2218-2221, 18-21 May 2008 (awarded the best paper)

24.   R. Y.K. Choi and Chi-Ying Tsui,  A Low Energy Two-step Successive Approximation Algorithm for ADC design,  IEEE International Symposium on Quality Electronic Design, pp.317-320, San Jose, USA, March, 2008

25.   Ngok-Man SZE, Wing-Hung KI and Chi-Ying Tsui, Threshold Voltage Start-up Boost Converter for Sub-mA Applications, IEEE International Symposium on Electronic Design, Test and Applications, pp. 338-341, Hong Kong, Jan. 2008

26.    W. Wang, S. Lou, K. Chui, S. Rong, C.F. Lok, H. Zheng, H.T. Chan, H.T.S.W. Man, H.C. Luong, H.C. V.K. Lau and Chi-Ying Tsui, A Single-Chip UHF RFID Reader in 0.18-mm CMOS, IEEE Custom  Integrated Circuits Conference, pp. 111-114, 16-19 September 2007

27.   H. Shao and Chi-Ying Tsui, A Robust, Input Voltage Adaptive and Low Energy Consumption Level Converter for Sub-threshold Logic, European Solid-State Circuits Conference, pp.312-315, 11-13 Sept. 2007

28.   H. Shao, Chi-Ying Tsui, and Wing-Hung Ki, A Micro Power Management System and Maximum Output Power Control for Solar Energy Harvesting Applications, IEEE/ACM International Symposium on Low Power Electronic and Design, pp. 298-303, Portland USA, August 2007

29.   C. Lu, Chi-Ying Tsui, and W. H. Ki, Vibration Energy Scavenging and Management for Ultra Low Power Applications, IEEE/ACM International Symposium on Low Power Electronic and Design, pp.316-321, Portland USA, August,2007 (awarded the best paper_

30.   Lap Fai, Leung and Chi-Ying Tsui, Energy-Aware Synthesis of Networks-on-Chip Implemented with Voltage Islands, IEEE/ACM Design Automation Conference, pp. 128-131, San Francisco USA,  June 2007

31.   Feng Su,  Wing-Hung Ki and Chi-Ying Tsui,  An Ultra Fast Fixed Frequency Buck Converter with Maximum Charging Current Control and Adaptive Delay Compensation for DVS Applications, IEEE International Symposium on VLSI Technology and  Circuits, pp. 28-29, June 2007

32.   Hin-Tat Chan, Wenting Wang, Chi Fung Lok, Vincent K. Lau, Chi-Ying Tsui and Howard C. Luong, A Mixed-Signal Architecture of Channel Select Filtering with Oversampled ADC for Multi-Standard RFID Reader Receiver, IEEE International Conference on RFID, pp. 108-114, March 2007

33.   S. W. Man, Chi-Ying Tsui, V. K. N. Lau and H. C.W. Luong, Low Power VLSI Design for a RFID Passive Tag baseband System Enhanced with an AES Cryptography Engine, RFID Eurasia 2007 Conference, pp. 1-6, September, 2007

34.    S. W. Man, Chi-Ying Tsui and V. K. N. Lau, Design and Implementation of a Low-Power Baseband-System for RFID Tag, IEEE International Symposium of Circuits and Systems, pp. 1585-1588, May 2007

35.    C. Lu, Chi-Ying Tsui and W. H. Ki,  A Batteryless Vibration-Based Energy Harvesting System for Ultra Low Power Ubiquitous Applications, IEEE International Symposium of Circuits and Systems, pp. 1349-1352, May 2007

36.    H. Shao, Chi-Ying Tsui and W.H. Ki,  An Inductor-Less Micro Solar Power Management System Design for Energy Harvesting Applications, IEEE International Symposium of Circuits and Systems, pp. 1353-1356, May 2007

37.     *W.F. He, *M.L. Zhao, Chi-Ying Tsui and Z.G. Mao, A Scalable Frame-Level Pipelined Architecture for FSBM Motion Estimation, IEEE International Conference on VLSI Design, pp. 830-835, India, Jan. 2007

38.     Jie Jin and Chi-Ying Tsui,  Low Complexity SST Viterbi Decoder, IEEE VTC-Fall 2006, pp. 1-2, pp. 1-2, Sep. 2006

39.   Lap Fai, Leung and Chi-Ying Tsui, Optimal link scheduling on improving best-effort and guaranteed services performance in network-on-chip systems, in the Proceedings of ACM/IEEE Design Automation Conference, pp. 833-838, July, 2006

40.   Jie Jin and Chi-ying Tsui,   A low power Viterbi decoder implementation using scarce state transition and path pruning scheme for high throughput wireless applications,  IEEE/ACM International Symposium on Low Power Electronic and Design, August,2007 pp. 406 - 411 , Oct. 2006

41.   Y.-H. Lam, W.-H. Ki and Chi-ying Tsui, An Integrated 1.8V to 3.3V Regulated Voltage Doubler using Active Diodes and Dual-Loop Voltage Follower for Switch-Capacitive Load, IEEE Symposium on VLSI Technology and Circuits, pp. 85-86, June 2006

42.   Hui Shao,  Chi-Ying Tsui and Wing-Hung Ki, A Novel Charge Based Computation System and Control Strategy for Energy Harvesting Applications, IEEE International Symposium on Circuits and Systems, pp. 2933-2936, May, 2006

43.   Feng Liu and Chi-Ying Tsui, Energy-Aware Optimal Workload Allocation Among the Battery-Powered Devices to Maximize the Co-Operation Life Time, IEEE International Symposium on Circuits and Systems,  pp. 5299-5302, May,2006

44.   Hing-Mo Lam and Chi-Ying Tsui, High Performance Single Clock Cycle CMOS Comparator,  IEEE International Symposium on Circuits and Systems,  pp. 779-782, May, 2006

45.   Feng Su,  Wing-Hung Ki and Chi-Ying Tsui, High Efficiency Cross-Coupled Doubler with No Reversion Loss, IEEE International Symposium on Circuits and Systems, pp. 2761-2764, May,2006

46.   Chi-Ying Tsui, Hui Shao, Wing-Hung Ki, Feng S, Ultra-low voltage power management circuit and computation methodology for energy harvesting applications,  IEEE ASP-DAC, pp. 96-97, Jan, 2006

47.   Yat-Hei Lam, Koon, S.-C., Wing-Hung Ki and Chi-Ying Tsui, Integrated direct output current control switching converter using symmetrically-matched self-biased current sensors,  IEEE ASP-DAC, pp. 102-103, Jan, 2006

48.   Yat-Hei Lam, Wing-Hung Ki and Chi-Ying Tsui, Adaptively-biased capacitor-less CMOS low dropout regulator with direct current feedback,  IEEE ASP-DAC, pp. 104-105, Jan, 2006

49.   Chi-ying Tsui, Hui Shao, Wing Hung Ki  and Feng Su,  Ultra-Low Voltage Power Management and Computation Methodology for Energy Harvesting Applications, IEEE VLSI Technology and Circuits symposium, pp. 316-319, June, 2005

50.   Feng Liu and Chi-Ying Tsui A Data Discarding Framework for Reducing the Energy Consumption of Viterbi Decoder in Decoding Broadcasted Wireless Multi-Resolution JPEG2000 Images, IEEE Workshop on Embedded Systems for Real-Time Multimedia, pp-21-26, Sept. 2005

51.   Wing-Hung Ki, Feng Su and Chi-Ying Tsui, Charge redistribution loss consideration in optimal charge pump design, IEEE International Symposium on Circuits and Systems, vol. 2, pp. 1895-1898, May, 2005

52.   Feng Su,  Wing-Hung Ki and Chi-Ying Tsui, Gate control strategies for high efficiency charge pumps, IEEE International Symposium on Circuits and Systems, vol. 2, pp. 1907-1910, May, 2005

53.   Jin, Jie, Chi-ying Tsui  and Wai-Ho Mow, A threshold-based algorithm and VLSI architecture of a K-best Lattice Decoder for MIMO Systems, IEEE International Symposium on Circuits and Systems, vol. 4, pp. 3359-3362, May, 2005

54.   Lap Fai Leung, Chi-ying Tsui, and Xiaobo (Sharon) Hu, Exploiting Dynamic Workload Variation in Low Energy Preemptive Task Scheduling, IEEE Design, Automation and Test Conference, pp.634-639, March 2005

55.   Lap Fai Leung, Chi-ying Tsui and Xiaobo (Sharon) Hu, Exploiting Dynamic Workload Variation in Offline Low Energy Voltage Scheduling, Lecture Notes in Computer Science-Integrated Circuit and System Design, vol. 3254, pp.553-563, September 2004

56.   Yat-Hei Lam, Wing-Hung Ki, Chi-Ying Tsui and Dongsheng Ma, Integrated 0.9V Charge-Control Switching Converter with Self-Biased Current Sensor,  IEEE Midwest Symposium on Circuits and Systems, vol.2 pp. 305-308, Aug. 2004

57.   Feng Liu and Chi-ying Tsui, Adaptive Spectrum-based Variable Bit Truncation of Discrete Cosine Transform (DCT) for Energy-Efficient Wireless Multimedia Communication, IEEE Workshop on Embedded Systems for Real-Time Multimedia, pp. 81-86, Sept. 2004

58.   L. Jing, M. Hamdi, and Chi-ying Tsui, Scalable scheduling architectures for high-performance crossbar-based switches,  International Workshop on High Performance and Routing Conference, pp. 104-110, 2004

59.   Siu Kei Wong and Chi-ying Tsui,  Dynamic Reconfigurable Bus Encoding Scheme for Reducing the Energy Consumption of Deep Sub-micron Instruction Bus,  IEEE International Symposium on Circuits and Systems, pp. 321-324, May 2004

60.   Yi Ching Au, Chi-ying Tsui,  Least-Leakage-Vector-Assisted Technology Mapping for Total Power Optimization,  IEEE International Symposium on Circuits and Systems, Vol. 5, pp. 145-148, May 2004

61.   Siu Kei Wong and Chi-ying Tsui, Re-configurable bus encoding scheme for reducing power consumption of the cross coupling capacitance for deep sub-micron instruction bus,  IEEE Design, Automation and Test Conference, pp.321-324, Feb. 2004

62.   Yan Wang, Chi-ying Tsui, R. S. K. Cheng and W. H. Mow, Power Control of  CDMA Systems with Successive Interference Cancellation using the Knowledge of the Battery Capacity of the Mobile,  IEEE ASPDAC Conference, pp. 125-130, Jan. 2004

63.   Lap Fai Leung, Chi-ying Tsui and Wing-hung Ki, Minimizing Energy Consumption of Multiple-Processors-Core Systems with Simultaneous Tasks Allocation, Scheduling and Voltage Assignment,  IEEE ASPDAC Conference, pp. 647-652, Jan. 2004

64.   Lap Fai Leung, Chi-ying Tsui and Wing-hung Ki,, Minimizing Energy Consumption of Hard Real-Time Systems with Simultaneous Tasks Scheduling and Voltage Assignment using Statistical Data, IEEE ASPDAC Conference, pp. 663-665, Jan. 2004

65.   Dongsheng Ma, Wing-hung Ki and Chi-ying Tsui, Fast Adaptive DC-DC Conversion Using Dual-Loop One-cycle Control in Standard Digital CMOS Process, IEEE ASPDAC Conference, pp. 539-540, Jan. 2004

66.   Martin Yeung-Kei Chui, Wing-hung Ki and Chi-ying Tsui, A dual-band switching Digital Controller for a Buck Converter, IEEE ASPDAC Conference, pp. 561-562, Jan. 2004

67.   Martin Yeung-Kei Chui, Wing-hung Ki and Chi-ying Tsui, An Integrated digital controller for DC-DC switching converter with dual-band switching, IEEE VLSI Technology and Circuit Symposium, pp. 45-48, June 2003

68.   Yan Wang, Chi-ying Tsui, R. S. K. Cheng and W. H. Mow, Threshold channel estimation for OFDM in wireless systems,  Vehicular Technology Conference, Vol. 3, pp. 130-135, April 2003

69.   Hing Mo Lam and Chi-ying Tsui, High performance and low power completion detection circuit,  IEEE International Circuits and Systems, Vol. 5, pp V-405-V-408, May 2003

70.   Chun-kit Hung, M. Hamdi and Chi-ying Tsui, Design and Implementation of high-speed arbiter for large scale VOQ crossbar switches,  IEEE International Circuits and Systems, Vol. 2, pp II-308-II-311, May 2003

71.   Yat Hei Lam, Wing-hung Ki, Chi-ying Tsui and Mok, K.T. Philip, Single-inductor dual-input dual-output switching converter for integrated battery charging and power regulation,  IEEE International Circuits and Systems, Vol. 3, pp III-447-III-450, May 2003

72.   Lap Fai Leung, Chi-ying Tsui and Wing-hung Ki, Simultaneous task allocation, scheduling and voltage assignment for multiple-processors-core systems using mixed integer non-linear programming,  IEEE International Circuits and Systems, Vol. 5, pp V-309-V-312, May 2003