My Work at Millennial Net, Inc : The i-Bean - An Innovative, Self-organizing Wireless Network Technology

                                                     

    

My Work at MIT : The Ring Sensor - A New Innovative Device for Continuous and Wireless Health Monitoring

 

               

 

Sokwoo Rhee, Ph.D.

Chief Technology Officer at Millennial Net, Inc.

 

 

Area of Interest

  • Wireless Communications and Networks
  • Energy Management Solutions
  • Biomedical Instrumentation and Physiological Information Analysis
  • Robotics and Mechatronics
  • Embedded Devices/System

 

Professional Experience

Millennial Net, Inc. (Cambridge, MA) (2000 – Present)  

 

  • Co-founder and Chief Technology Officer. Development of Miniaturized Wireless Communication Devices and Wireless Sensor Networks

 

Massachusetts Institute of Technology (Cambridge, MA) (2000 – 2002)

 

  • Postdoctoral Research Associate. Research in Biomedical Instrumentation and Physiological Information Analysis

 

Academic Research

d'Arbeloff Laboratory for Information Systems and Technology in MIT (1995 – 2002)

 

§         Development of finger ring-type bio-optical sensors 

§         Development of wearable, wireless, miniaturized coin-type computing devices (Being commercialized)

§         Physiological modeling of human finger for ring type pulse oximeter

§         Development of Windows NT-based real time control system for industrial robot control (Successfully commercialized by Soft Servo Systems, Inc., Waltham, MA, USA)

 

Mechatronics Laboratory in Seoul National University (1993 - 1995)

 

§         Designed a micro robot with optical, ultrasonic sensors and actuators

§         Developed an intelligent algorithm for optimum path search in robot movement

Teaching

Massachusetts Institute of Technology

 

§         Teaching Assistant for 2.165 Robotics and Mechatronics course . Fall 1999. Gave lectures on real time control systems, developed PC-based robot controller under Windows NT environment for lab session, supervised students during laboratory activities, and graded lab reports.

 Education

Massachusetts Institute of Technology (Cambridge, MA)

 

§         Ph.D. in Mechanical Engineering, June 2000. Thesis under Professor H. H. Asada, "Design and Analysis of Artifact-Resistive Finger Photoplethysmographic Sensors for Vital Sign Monitoring". Development and optimization of a new   finger ring-type sensor which monitors physiological information noninvasively and continuously using a subminiature computing device. Minor in Electrical Engineering. Doctoral Thesis Proposal (Design and Optimization of an Artifact-Resistive Wearable Photoplethysmographic Device : The Ring Sensor), Doctoral Thesis Abstract (Design and Analysis of Artifact-Resistive Finger Photoplethysmographic Sensors for Vital Sign Monitoring)

§         M.S. in Mechanical Engineering, February 1997. Thesis under Prof. H. H. Asada, "Development of a Windows NT-based Real Time Operating System"

 

Seoul National University (Seoul, Korea)

 

§         B.S. in Mechanical Engineering, February 1995. Thesis "Studies on Micro Robot Control Software". Broad curriculum in mechanical engineering and electrical engineering with emphasis on mechatronics and control

 

Prizes and Honors

  • Named as one of 100 Top Young Innovators of 2004 by MIT’s Technology Review (TR100), September 2004, Cambridge, MA, USA
  • Named as one of Top 5 Innovators of 2004 by Red Herring magazine, November, 2004
  • Profiled in Marquis Who’s Who, 2005, 2006 and 2007 Edition
  • The Winner of Douglas H. Annin Award from ISA (Instrumentation, Systems, and Automation Society, www.isa.org), October 2004, Houston, TX, USA
  • The Winner of Best of Sensors Expo Awards (Millennial Net), June 2003, Detroit, IL, USA
  • Sensor's Express Reader's Choice Award (Millennial Net), November 2003
  • The Winner of Best of Sensors Expo Awards (Millennial Net), June 2003, Rosemont, IL, USA 

 

Patents

  • Rhee, Sokwoo, et al., “Coordinating protocol for a multi-processing system,” US Patent 6.804.790 issued on October 2004
  • Rhee, Sokwoo, et al., "Photoplethysmograph signal-to-noise line enhancement" US Patent 6,699,199 issued on March 2004
  • Rhee, Sokwoo, et al., “Isolating ring sensor design,” US Patent 6,402,690, issued on June 2002
  • Rhee, Sokwoo, "Network Protocol" US Patent Pending, Application No. 20030099221, filed on November 2002
  • Rhee, Sokwoo, et al., "Protocol for Configuring a Wireless Network" US Patent Pending, Application No. 20050037789, filed on May 2004
  • Rhee, Sokwoo, et al., “Communicating over a Wireless network” US Patent Pending, Application No. 20060285579, filed on May 2006

 

Publications and Activities

Invited Seminars and Lectures

  • Rhee, S., “Requirements and Applications of Wireless Sensor Networks,” Sensors Expo 2007, Rosemont, IL, June 11-13, 2007
  • Rhee, S., et al, “Wireless Devices and Sensor Networks,” Boston University Technology Entrepreneur Night, Boston University, Boston, MA, April 20, 2007
  • Rhee, S., “Starting and Selling a Venture-Backed Technology Company  : Crossing the chasm,” Seoul National University, Seoul, Korea, March 7, 2007
  • Rhee, S., “New Wireless Sensor Network Architecture for Industrial Applications,” International Congress for Wireless Sensor Networks, Paris, France, November 28-29, 2006
  • Rhee, S., “Requirements and Applications of Wireless Sensor Networks,” Supply Chain Management Forum VI  (SCMF VI), Council of Science & Technology of Government of Finland, Helsinki, Finland, 
  • Rhee, S., “Future Directions in Systems Research for Networked Sensing,” National Science Foundation Workshop, Boston University, May 26, 2006 
  • Rhee, S., “Wireless Sensor Networks – Issues and Applications,” MIT Forum for Supply Chain Innovation, MIT Sloan School of Management, November 18, 2005
  • Rhee, S., et al, “Sensor Network Implementation Challenges,” Boston University Sensor Network Consortium, November 17, 2005
  • Rhee, S., “Millennial Net,” KGSA Invited Lecture Series, MIT, Cambridge, MA, November 1, 2005
  • Rhee, S., et al, “Millennial Net Case Study,” Harvard Business School , Cambridge, September 20, 2005
  • Rhee, S., “Increasing Capacity in Wireless Sensor Networks,” Sensors Expo 2005, Chicago, IL, June 6-8, 2005
  • Rhee, S., “Wireless Sensor Networks – Issues and Applications,” Boston University CISE Seminar, Boston, MA, February 25, 2005
  • Rhee, S., “Challenges in Wireless Sensor Networks and their Applications,” IEEE Boston Sector Workshop, Waltham, MA, January 13, 2005
  • Rhee, S., “Ubiquitous Sensor Network and Its Markets,” The 2nd International Ubiquitous Computing Symposium, Seoul, Korea, October 25, to be held
  • Rhee, S., “The Extended Internet: RFID and Other Sensor End Points,” Enterprise Networks 2004 Conference, Boston, MA, April 26, 2004
  • Rhee, S., "An Ultra-low Power, Self-organizing Wireless Sensor Network and Its Applications in Continuous Health Monitoring," Seminar, Johnson Foundation Library, University of Pennsylvania, Philadelphia, PA, June 12, 2003
  • Rhee, S., "Wireless Mesh Networking," MIT Wireless Forum, Massachusetts Institute of Technology, Cambridge, MA, May 1, 2003
  • Rhee, S., Asada, H., et al, "Innovative Wearable Sensors," CIMIT (Center for the Integration of Medicine and Innovative Technology) Forum, Massachusetts General Hospital, Cambridge, MA, Dec. 19, 2000

Industrial Magazines / Press Coverage

§         Rhee, S., "Short-Range Networking Finds Its Mesh," ECN Magazine, February 1, 2005

§         “Wireless Sensor Networks Able to Self-Organize”, Nikkei Electronics Asia, January, 2005

§         “Top 5 Innovators : Forging a Connection,” Red Herring, November 2004 (Visit web sites (cover and article) or read the cached cover story (PDF) and article (PDF) from Red Herring)

§         Hankyung Business (Korea), November 2004 (Read the cached articles from HK Business (Korean) (PDF Article 1 and PDF Article 2)

§         Chosun Daily (Korea), November 2004 (Visit web site or read the cached PDF article (Korean) from Chosun)

§         "Demo: Sensor World," MIT Technology Review, April 2004

§         Rhee, S., et al, "Wireless sensor nets demand trade-offs," EE Times, In-focus Article, Oct 31, 2003

§         Rhee, S., et al, "Wireless Sensors Streamline Data Distribution ," Communication Systems Design, Cover Story, July/August 2003 Issue, 9 (7) (2003) pp 10-18

Journals

§         Asada. H., Shaltis, P., Reisner, A., Rhee, S., and Hutchinson, R., "Mobile Monitoring with Wearable Photoplethysmographic Biosensors," IEEE Engineering in Medicine and Biology Magazine, 22 (3) (2003) pp 28-40

§         Rhee, S., Yang, B-H and Asada, H., “Artifact-Resistant, Power-Efficient Design of Finger-Ring Plethysmographic Sensors,” IEEE Transactions on Biomedical Engineering, 48 (7) (2001) pp 795-805

§         Yang B-H. and Rhee, S., "Development of the Ring Sensor for Healthcare Automation," Robotics and Autonomous Systems, 30 (3) (2000) pp. 273-281

Conferences and Workshops

  • New Wireless Sensor Network Architecture for Industrial Applications,” International Congress for Wireless Sensor Networks, Paris, France, November 28-29, 2006
  • Rhee, S., “Keys to Meeting Real-World Wireless Sensor Networking Demands: Protocol Efficiency and High Capacity,” ISA Conference 2005, Chicago, IL, October 24, 2005
  • Rhee, S., “Wireless Sensor Networks – Issues and Applications,” Netted Sensors Workshop, MITRE Corporation Facility, McLean, VA, October 24, 2005
  • Rhee, S., “Real-World Applications of Wireless Sensor Networks,” Upperside Zigbee Conference, Paris, France, May 10-11, 2005
  • Rhee, S. et al, “Maximizing Data Reliability in Wireless Sensor Networks,” Sensor+Test Conference, Nuremberg, Germany, May 11-12, 2005
  • Rhee, S. " Issues on Robustness and Scalability of Wireless Mesh Networks," Embedded Systems Conference 2005, San Francisco, CA, March 6-10, 2005
  • Rhee, S., et al, " Techniques for Addressing Critical Requirements of Production-Grade Wireless Sensor Networks," IEEE/ISA Sensors for Industry Conference 2005, Houston, TX, February 9, 2005

§         Rhee, S., et al, “An Efficient Random Number Generator for Low-Power Sensor Networks,” 29th Annual IEEE Conference on Local Computer Networks (LCN), Tampa, FL, November 16-18, 2004

  • Rhee, S., " Issues in Low Power, Low Data-Rate Wireless Sensor Networks," IEEE Radio and Wireless Conference (RAWCON) 2004, Atlanta, GA, September 20, 2004

§         Rhee, S., et al, "Techniques for Minimizing Power Consumption in Low Data-Rate Wireless Sensor Networks," IEEE Wireless Communications and Networking Conference (WCNC) 2004, Atlanta, GA, March 22-26, 2004

§         Rhee, S., et al, "i-Beans : An Ultra-low Power Wireless Sensor Network," Ubicomp 2003, The Fifth International Conference on Ubiquitous Computing, Seattle, WA, October 12-15, 2003

§         Rhee, S., "An Ultra-low Power, Self-organizing Wireless Sensor Network and Its Applications in Continuous Health Monitoring," Workshop on Optical/RF/Microwave Technologies for Medical Applications, IEEE International Microwave Symposium (IMS), Philadelphia, PA, June 13, 2003

§         Rhee, S., Liu, S., "An Ultra-low Power, Self-organizing Wireless Network and Non-invasive Biomedical Instrumentation," 2002 24th Annual International Conference of the IEEE/EMBS and Annual Fall Meeting of the BMES, Houston, TX, USA, Oct 23-26, 2002

§         Shaltis, P.A., Rhee, S., and Asada, H., "Validation and Benchmarking of a High-Speed Modulation Design for Oxygen-Saturation Measurement Using Photoplethysmographic Ring Sensors," IEEE Sensors 2002, the first IEEE conference on sensors, Orlando, FL, USA, June 12-14, 2002

§         Shaltis, P.A., Rhee, S., and Asada, H., "Implementation and Validation of a Power-Efficient, High-Speed Modulation Design for Wireless Oxygen Saturation Measurement Systems," 2002 28th Annual IEEE Northeast Bioengineering Conference, Drexel University, Philadelphia, PA, April 20-21, 2002

§         Rhee, S., Liu, S., "An Ultra-low Power, Self-Organizing Wireless Network and Its Applications to Non-invasive Biomedical Instrumentation," 2002 IEEE/Sarnoff Symposium on Advances in Wired and Wireless Communications, West Trenton, New Jersey, March 13, 2002

§         Shaltis, P.A., Rhee, S., and Asada, H., "Artifact Resistant, Power Efficient, High Speed Modulation Design for Photo Plethysmographic Ring Sensors," Annals of Biomedical Engineering 29:1 (S-117), 2001

§         Rhee, S., Yang, B-H and Asada, H., "Design and Evaluation of Artifact-Resistant Finger-Ring Plethysmographic Sensors," 2000 ASME International Mechanical Engineering Congress and Exposition, Orlando, Florida,  November 5-10, 2000

§         Rhee, S. Yang B-H and Asada, H., "Artifact-Resistant, Power-Efficient Design of Finger-Ring Plethysmographic Sensors,  Part I : Design and Analysis," 22st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Chicago IL USA, Jul 23-28, 2000

§         Rhee, S. Yang B-H and Asada, H., "Artifact-Resistant, Power-Efficient Design of Finger-Ring Plethysmographic Sensors,  Part II : Prototyping and Benchmarking," 22st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Chicago IL USA, Jul 23-28, 2000

§         Rhee, S. Yang B-H and Asada, H., "Theoretical Evaluation of the Influence of Displacement on Finger Photoplethysmography for Wearable Health Monitoring Sensors," Symposium on Dynamics, Control, and Design of Biomechanical Systems ASME International Mechanical Engineering Congress and Exposition, Nashville, Tennessee, November 14-19, 1999

§         Rhee, S. Yang B-H and Asada, H., "Design of a Artifact-Free Wearable Plethysmographic Sensor," 21st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Atlanta GA USA, Oct 13-16, 1999

§         Rhee, S. Yang B-H and Asada, H., "Modeling of Finger Plethysmography for Wearable Sensors," 21st Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Atlanta GA USA, Oct 13-16, 1999

§         Rhee, S. Yang B-H and Asada, H., "The Ring Sensor : a New Ambulatory Wearable Sensor for Twenty-Four Hour Patient Monitoring," Proc. of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Hong Kong, Oct, 1998

§         Yang B-H. Rhee S and Asada, H., "A Twenty-Four Hour Tele-Nursing System Using a Ring Sensor," Proc. Of 1998 IEEE International Conference on Robotics and Automation, Leuven, Belgium, May, 1998

§         Yang B-H. Rhee, S. and Asada, H., "Development of the Ring Sensor for Twenty-Four Hour Patient Monitoring," 1997 Annual Meeting of Optical Society of America, Long Beach, California, October, 1997

Standards Committee Participations

  • Institute of Electrical and Electronic Engineers (IEEE), Member of Engineering in Medicine and Biology Society (EMBS), Member of Communications Society (COMSOC)
  • Association for Computing Machinery (ACM)
  • Instrumentation Systems and Automation (ISA)
  • Zigbee Alliance
  • ISA SP100 Wireless Standard for Industrial Applications

 

Contact Information at Millennial Net, Inc.

Millennial Net, Inc. 

23 Third Ave

Burlington, MA 01803

 

(781) 222-1030 ext 236 (phone)

(781) 222-1039 (fax)

Email : username = sokwoo, domain =  millennialnet.com

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