In Press
"A 4-channel Wearable Wireless Neural Recording System," M. Chae, K. Chen, W. Liu, M. Sivaprakasam, and J. Kim, IEEE International Symposium on Circuits and Systems, May 2008.
"A Non-Coherent DPSK Data Receiver with Interference Cancellation for Dual-Band Transcutaneous Telemetries," M. Zhou and W. Liu, To appear in IEEE Journal of Solid-State Circuits.
"Design Optimization for Integrated Neural Recording Systems," M. Chae, W. Liu, and M. Sivaprakasam, To appear in IEEE Journal of Solid-State Circuits.
"The Application of Nano-Technology and Engineering in Medicine: A New
Paradigm for Facial Muscle Reanimation," K. Cockerham, W. Liu, L. Crow,
M. Sivaprakasam, A. Olmos, M. Oehlerbg, O. Pantchenko, and S. Aro, To
appear in Expert Review of Medical Devices.
2008
"A 12-channel 6mW Wireless Neural Recording IC with On-the-fly Spike Sorting and UWB Transmitter," M. Chae, W. Liu, Z. Yang, T. Chen, J. Kim, M.
Sivaprakasam, and M. R. Yuce, International Solid-State Circuits Conference, February 2008.
"Challenges in realizing a Chronic High Resolution Artifical Sight Device," W. Liu, M. Sivaprakasam, G. Wang, M. Zhou, J. D. Weiland, and M. S. Humayun, Artificial Sight, M. S. Humayun, J. D. Weiland, E. Greenbaum, Eds. Biological and Medical Physics/Biomedical Engineering Series, New York: Springer.
"Development of an Intraocular Prosthesis to Benefit the Visually
Impaired," W. Liu, M. Sivaprakasam, G. Wang, M. Zhou, J. D. Weiland,
and M. S. Humayun, To appear in visual Prosthetics and Ophthalmic
Devices: New Hope in Sight, New Jersey: Humana Press, Inc.
"Semiconductor based Implantable Prosthetic Devices," W. Liu, M.
Sivaprakasam, G. Wang, M. Zhou, and M. S. Humayun, To appear in Wiley
Handbook of Biomedical Engineering, New Jersey: John Wiley and Sons,
Inc.
2007
"Optimization of Coils for Biomedical Applications," Z. Yang, W. Liu, and E. Basham, IEEE Transactions on Magnetics, Volume: 43, Pages: 3851 - 3860, October 2007.
"Teaching Neural Implant Engineering: The BMES-ERC Education Program", M. Khoo, J. Weiland, T. Berger and W. Liu, BMES Annual Fall Meeting, September 2007.
"An Integrated Multi-Channel Neural Recording System," M. Chae, W. Liu, and M. Sivaprakasam, BMES Annual Fall Meeting, September 2007.
"The Effect of Chronic Denervation on Electrical, Chemical and Electrochemical Stimulation Efficacy," A. Olmos, M. Oehlberg, M. Gharib, M. Sivaprakasam, K.
Cockerham, W. Liu, and D. Liepmann, BMES Annual Fall Meeting, September 2007.
"Development of an Indwelling Microstimulator for Neuromuscular
Disease," M. Gharib, A. Olmos, M. Oehlberg, M. Sivaprakasam, D. Liepmann, K.
Cockerham, and W. Liu, BMES Annual Fall Meeting, September 2007.
"A Wideband Telemetry Unit for Multi-Channel Neural Recording," M. R. Yuce, W. Liu, M. Chae, and J. Kim, IEEE International Conference on Ultra-Wideband, September 2007.
"A Wireless Medical Monitoring Over a Heterogeneous Sensor Network," M. R. Yuce, P. C. Ng, C. K. Lee, J. Y. Khan, and W. Liu, Annual International Conference of the IEEE EMBS, August 2007.
"An Implantable Microsystem for Reanimation of Eyelid Blink," M. Oehlberg, W. Liu, M. Sivaprakasam, and O. Pantchenko, 8th Annual UC Systemwide Bioengineering Symposium, June 2007.
"Development of an Indwelling Microstimulator for Neuromuscular Disease," M. Gharib, A. Olmos, M. Oehlberg, M. Sivaprakasam, W. Liu, K. Cockerham, and D. Liepmann, 8th Annual UC Systemwide Bioengineering Symposium, June 2007.
"A MICS Wireless Body Sensor Network," M. R. Yuce, P. C. Ng, C. K. Lee, J. Y. Khan, and W. Liu, IEEE Wireless Communications and Networking Conference, March 2007.
"Design and Performance of Wideband Sub-Sampling Front-Ends for Multi-Standard Software Radios," M. R. Yuce and W. Liu, International Journal of Electronics and Communications (Elsevier), March 2007.
"SOI CMOS Implementation of a Multi-Rate PSK Receiver for Space
Communications," M. R. Yuce, W. Liu, J. Damiano, B. Bharat, P. D.
Franzon, and N. S. Dogan, IEEE Transactions on Circuits and Systems - I, February 2007.
"A Non-Coherent PSK Receiver with Interference Canceling for Transcutaneous Neural Implants," M. Zhou and W. Liu, International Solid-State Circuits Conference, February 2007.
2006
"Design Methodology for an Integrated Low Power Neural Recording System," M. Chae, W. Liu, G. Wang, and M. Sivaprakasam, BMES Annual Meeting, October 2006.
"Integrated VCO Design for MICS Transceivers," A. Tekin, M. R. Yuce, and W. Liu, IEEE Custom Integrated Circuits Conference, September 2006.
"A Transcutaneous Data Telemetry System Tolerant to Power Telemetry Interference," M. Zhou, W. Liu, G. Wang, M. Sivaprakasam, J. D. Weiland, and M. S. Humayun, Annual International Conference of the IEEE EMBS, September 2006.
"A Dual Band Wireless Power and Data Telemetry for Retinal Prosthesis," G. Wang, W. Liu, M. Sivaprakasam, M. Zhou, J. D. Weiland, and M. S. Humayun, Annual International Conference of the IEEE EMBS, September 2006.
"Analytical Calculation of the Self-Resonant Frequency of Biomedical Telemetry Coils," Z. Yang, G. Wang and W. Liu, Annual International Conference of the IEEE EMBS, September 2006.
"High Power Efficiency Coil Design for Biomedical Telemetry," Z. Yang and W. Liu, Neural Interfaces Workshop, August 2006.
"A Novel Spatial Selective Stimulation Model for Functional Electric Stimulation," Z. Yang and W. Liu, Neural Interfaces Workshop, August 2006.
"Challenges in System and Circuit Design for High Density Retinal Prosthesis," M. Sivaprakasam, W. Liu, G. Wang, M. Zhou, J. D. Weiland, and M. S. Humayun, IEEE/NLM Life Science Systems and Applications Workshop (LSSA), July 2006.
"Miniaturized Power Efficient Neural Recording Systems," W. Liu, Integrated Neural Interface Technologies and Applications, July 2006.
"Discrete time analysis of a multi-rate symbol timing recovery circuit for sampling receivers," M. R. Yuce, A. Tekin, and W. Liu, IEEE International Conference on Communications, June 2006.
"A Multi-Channel Neural Recording System for Monitoring Shark Behavior," W. Liu, M. Sivaprakasam, G. Wang, and M. Chae, IEEE International Symposium on Circuits and Systems, May 2006.
"Modeling and Analysis of Virtual Electrodes in Retinal Prosthesis," W. Liu, Z. Yang and M. Sivaprakasam, Association of Research in Vision and Ophthalmology Annual Meeting, May 2006.
"A 16Gb/s Adpative Bandwidth Bus Based on Hybrid Current/Voltage Mode Signaling Repeaters," R. Bashirullah, W. Liu, and R. Cavin, IEEE Journal of Solid-State Circuits, Volume: 41, Pages: 461 - 473, February 2006.
"Challenges for Integrated Circuits in Implantable Devices," W. Liu and M. Sivaprakasam, Volume: 20, Future Fab International, January 2006.
2005
"Architecture Tradeoffs in High Density Microstimulators for Retinal Prosthesis," M. Sivaprakasam, W. Liu, G. Wang, J. D. Weiland, and M. S. Humayun, Volume: 52, Pages: 2629 - 2641, IEEE Transactions on Circuits and Systems – I, December 2005.
"A Low-Power Multirate Differential PSK Receiver for Space Applications," M. R. Yuce and W. Liu, Volume: 54, Pages: 2074 - 2084, IEEE Transactions on Vehicular Technology, November 2005.
"Design and Analysis of an Adaptive Transcutaneous Power Telemetry for Biomedical Implants," G. Wang, W. Liu, M. Sivaprakasam, and G. A. Kendir, IEEE Transactions on Circuits and Systems – I, Volume: 52, Pages: 2109 – 2117, October 2005.
"Microelectronics Design for Implantable Wireless Biomimetic Microelectronic Systems," W. Liu, M. Sivaprakasam, G. Wang, M. Zhou, J. Granacki, J. LaCoss, and J. Wills, Volume: 24, Pages: 66 - 74, IEEE Engineering in Medicine and Biology Magazine, September 2005.
"A Programmable Discharge Circuitry with Current Limiting Capability for a Retinal Prosthesis," M. Sivaprakasam, W. Liu, G. Wang, J. D. Weiland, and M. S. Humayun, Annual International Conference of the IEEE EMBS, September 2005.
"A Wireless Phase Shift Keying Transmitter with Q-Independent Phase Transition Time," G. Wang, W. Liu, M. Sivaprakasam, M. Zhou, J. D. Weiland, and M. S. Humayun, Annual International Conference of the IEEE EMBS, September 2005.
"Retinal Prosthesis," J. D. Weiland, W. Liu, and M. S. Humayun, Volume: 7, Pages: 361 - 401, Annual Review of Biomedical Engineering, August 2005.
"An Optimal Design Methodology for Inductive Power Link with Class-E Amplifier,” G. A. Kendir, W. Liu, G. Wang, M. Sivaprakasam, R. Bashirullah, M. S. Humayun, and J. D. Weiland, Volume: 52, Pages: 857 - 866, IEEE Transactions on Circuits and Systems – I, May 2005.
“Microelectronics for an Implantable Epiretinal Prosthesis”, W. Liu, M. Sivaprakasam, G. Wang, M. Zhou, J. D. Weiland, and M. S. Humayun, Abstract B295, Association of Research in Vision and Ophthalmology Annual Meeting, May 2005.
“Power Efficient Multiple Voltage Stimulation for Implantable Retinal Prosthesis,” M. Sivaprakasam, W. Liu, M. S. Humayun, and J. D. Weiland, IEEE-EMBS International Conference on Microtechnologies in Medicine and Biology, May 2005.
“Functional Magnetic Stimulation for Epiretinal Prosthesis”, E. Basham, W. Liu, and M. Sivaprakasam, Abstract B254, Association of Research in Vision and Ophthalmology Annual Meeting, May 2005.
“Power Supply Topologies for Biphasic Stimulation in Inductively Powered Implants,” G. Wang, W. Liu, M. Sivaprakasam, M. S. Humayun, and J. D. Weiland, IEEE International Symposium on Circuits and Systems, May 2005.
“A Closed-Form Delay Formula for On-Chip RLC Interconnects in Current-Mode Signaling,” M. Zhou, W. Liu, and M. Sivaprakasam, IEEE International Symposium on Circuits and Systems, May 2005.
“Image Processing Enhanced Electrical Stimulation of the Retina in Visual Prostheses,” W. Liu, W. Fink, M. Tarbell, and M. Sivaprakasam, IEEE International Symposium on Circuits and Systems, May 2005.
"A Low power MICS band transceiver architecture for implantable devices", A. Tekin, M. R. Yuce, and W. Liu, IEEE Wireless and Microwave Tecnology (WAMICON 2005), April 2005.
“Challenges in Realizing a Chronic High Resolution Artificial Sight Device,” W. Liu, M. Sivaprakasam, G. Wang, M. Zhou, J. D. Weiland, M. S. Humayun, U. S. Department of Energy (DOE) International Symposium on Artificial Sight, April 2005.
“A Variable Range Bi-Phasic Current Stimulus Driver Circuitry for an Implantable Retinal Prosthetic Device,” M. Sivaprakasam, W. Liu, M. S. Humayun, and J. D. Weiland, Volume: 41, Pages: 763 – 771, IEEE Journal of Solid State Circuits, March 2005.
“High Efficiency Wireless Power Transmission with Digitally Configurable Stimulation Voltage for Retinal Prosthesis,” G. Wang, W. Liu, M. Sivaprakasam, M. Zhou, J. D. Weiland, and M. S. Humayun, Proceedings of the International IEEE EMBS Conference on Neural Engineering, Pages: 543 – 546, March 2005.
“Architecture Tradeoffs in High Density Microstimulators for Retinal Prosthesis,” M. Sivaprakasam, G. Wang, W. Liu, M. Zhou, J. D. Weiland, and M. S. Humayun, Proceedings of the International IEEE EMBS Conference on Neural Engineering, Pages: 466 – 469, March 2005.
2004
“The performance and experimental results of a multiple bit rate symbol timing recovery circuit for PSK receivers,” M. R. Yuce, W. Liu, Proceedings of the IEEE Custom Integrated Circuits Conference¸ Pages: 591 - 594, October 2004
“Implementation and performance of a low-power multirate PSK receiver robust to Doppler shift,” M. R. Yuce, W. Liu, IEEE Vehicular Technology Conference, September 2004.
“Alternative wideband front-end architectures for multi-standard software radios,” M. R. Yuce, W. Liu, IEEE Vehicular Technology Conference, September 2004.
“Design and implementation of a multirate sub-sampling front-end in Software Radio Systems,” M. R. Yuce, W. Liu, Proceedings of Radio and Wireless Conference, Pages: 529 -532, September 2004
“A Hybrid Current/Voltage Mode On-Chip Signaling Scheme With Adaptive Bandwidth Capability,” R. Bashirullah, W. Liu, R. Cavin, D. Edwards, IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Volume: 12, Pages: 876 – 880, August 2004
“A 16Gb/s Adaptive Bandwidth On-Chip Bus based on Hybrid Current/Voltage Mode Signaling,” R. Bashirullah, W. Liu, R. Cavin, D. Edwards, IEEE International VLSI Circuits Symposium, July 2004
“A Closed Loop Transcutaneous Power Transfer System for Implantable Devices with Enhanced Stability,”G. Wang, W. Liu, R. Bashirullah, M. Sivaprakasam, G. A. Kendir, Y. Ji, M. S. Humayun, J. D. Weiland,Proceedings of the IEEE International Symposium on Circuits and Systems, Volume: 4, Pages: 17 – 20, May 2004
“A Matched Biphasic Microstimulator for an Implantable Retinal Prosthetic Device,” P. R. Singh, W. Liu, M. Sivaprakasam, M. S. Humayun, J. D. Weiland, Proceedings of the IEEE International Symposium on Circuits and Systems, Volume: 4, Pages: 1 – 4, May 2004
“Retinal Prosthesis,” W. Liu, M. S. Humayun, IEEE International Solid-State Circuits Conference Digest of Technical Papers, Pages: 218 – 219, February 2004
2003
"Electronic Visual Prostheses," W. Liu, M. Sivaprakasam, P. R. Singh, R. Bashirullah, G. Wang, Artificial Organs, Volume: 27, Pages: 986 – 995, November 2003
“Reduced-Complexity Digital Satellite CDMA Systems Robust to Doppler,” M. R. Yuce, W. Liu, IEEE Semiannual Vehicular Technology Conference, Volume: 4, Pages: 2736 – 2740, October 2003
“An Arbitrary Waveform Stimulus Circuit for Visual Prostheses using a Low Area Multibias DAC,” S. C. DeMarco, W. Liu, P. R. Singh, G. Lazzi, M. S. Humayun, and J. D. Weiland, IEEE Journal of Solid-State Circuits, Volume: 38, Pages:1679 – 1690, October 2003.
“A Low Power PSK Receiver for Space Applications in 0.35-µm SOI CMOS,” M. R. Yuce, W. Liu, J. Damiano, B. Bharat, P. D. Franzon, N. S. Dogan, Proceedings of IEEE Custom Integrated Circuits Conference, Pages: 155 – 158, September 2003
“Computed SAR and Thermal Elevation in a 0.25-mm 2-D Model of the Human Eye and Head in Response to an Implanted Retinal Stimulator – Part II: Models and Methods,”
S. C. Demarco, G. Lazzi, W. Liu, J. D. Weiland, M. S. Humayun, IEEE Transactions on Antennas and Propagation, Volume: 51, Pages: 2286 – 2295, September 2003
“Computed SAR and Thermal Elevation in a 0.25-mm 2-D Model of the Human Eye and Head in Response to an Implanted Retinal Stimulator – Part I: Models and Methods,”
S. C. Demarco, G. Lazzi, W. Liu, J. D. Weiland, M. S. Humayun, IEEE Transactions on Antennas and Propagation, Volume: 51, Pages: 2274 – 2285, September 2003
“A Low-power Low-IF DDPSK Receiver in 0.35-µm SOI CMOS Technology,” E. Zencir, M. R. Yuce, T. Huang, J. Marks, N. S. Dogan, W. Liu, Proceedings of Radio and Wireless Conference, Pages:155 – 158, August 2003
“Digital PSK/DPSK receivers in subsampling front-end via 1-bit A/D,” M. R. Yuce, W. Liu, Proceedings of International Conference on Wireless and Optical Communications, Pages: 484 – 489, July 2003
"Current-Mode Signaling in Deep Submicron Global Interconnects," R. Bashirullah, W. Liu, R. Cavin III, IEEE Transactions on Very Large Scale Integration (VLSI) Systems, Volume: 11, Pages: 406 – 417, June 2003
"Low-power Design Methodology for an On-chip Bus with Adaptive Bandwidth Capability," R. Bashirullah, W. Liu, R. Cavin III, Proceedings of the IEEE Design Automation Conference, Pages: 628 – 633, June 2003
"Accurate Delay Model and Experimental Verification for Current/Voltage mode On-chip Interconnects," R. Bashirullah, W. Liu, R. Cavin, Proceedings of the IEEE International Symposium on Circuits and Systems, Volume: 5, Pages: 169 – 172, May 2003
“A 22-mW 435 MHz Silicon on Insulator CMOS high-gain LNA for subsampling receivers,” T.H. Huang, E. Zencir, M. R. Yuce, N. S. Dogan, W. Liu, E. Arvas, Proceedings of the IEEE International Symposium on Circuits and Systems, Volume: 1, Pages: 417 – 420, May 2003
"A Smart Bi-directional Telemetry Unit for Retinal Prosthetic Device," R. Bashirullah, W. Liu, Y. Ji, A. Kendir, M. Sivaprakasam, G. Wang, and B. Pundi, Proceedings of the IEEE International Symposium on Circuits and Systems, Volume: 5, Pages: 5 – 8, May 2003
2002 and Earlier
“Retinal Implant: Bridging Engineering and Medicine,” W. Liu, IEEE International Electron Devices Meeting Digest of Technical Papers, Pages: 492 – 495, December 2002.
“Raised Cosine Approximation Signaling for Reduced Noise Cross-talk,” R. Bashirullah and W. Liu, IEE Electronic Letters, Volume: 38, Pages: 1256 – 1258, October 2002.
“Retinal Prosthesis for the Blind,” E. Margalit, M. Maia, J. Weiland, R. Greenberg, G. Fujii , G. Torres, D. Piyathaisere, T. O'Hearn, W. Liu, G. Lazzi, G. Dagnelie, D. Scribner, E. de Juan Jr, and M. Humayun, Survey of Ophthalmology, Volume: 47, Pages: 335 – 356, 2002.
“FDTD Investigation of a Microwave Link for Data Telemetry in Retinal Prosthesis Applications,” K. Gosalia, P. K. Brown, W. Liu, and G. Lazzi, Volume: 1, Pages: 807 – 810, IEEE Antennas and Propagation International Symposium, June 2002.
“Computational Electromagnetics for a Retinal Prosthesis to Restore Partial Vision in the Blind,” G. Lazzi, W. Liu, C. DeMarco, K. Gosalia, M. Eberdt, J. Weiland, and M. Humayun, Volume: 1, Pages: 803 – 806, IEEE Antennas and Propagation International Symposium, June 2002.
“A Smart Bi-directional Telemetry for Retinal Prosthesis,” W. Liu, R. Bashirullah, G. Lazzi, M. Humayun, and J. Weiland, The Association for Research in Vision and Ophthalmology Annual Meeting, May 2002.
“An Interpolating Sense Circuit for Molecular Memory,” Y. Nishida and W. Liu, Proceedings of the IEEE Custom Integrated Circuits Conference, Pages: 103 – 106, May 2002.
“Delay and Power Model for Current-mode Signaling in Deep Submicron Global Interconnects,” R. Bashirullah, W. Liu, and R. Cavin III, Proceedings of the IEEE Custom Integrated Circuits Conference, Pages: 513 – 516, May 2002.
“Deep Submicron Global Signaling Strategies ” R. Bashirullah, W. Liu, R. Cavin III, Research Perspectives - Cavin’s Corner, Semiconductor Research Corporation, March 13, 2002.
