◆국제 학회 논문 (International Conference Paper)

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[100] Junyoung Lee ; Sang Hyun Park ; Pyung Hun Chang ; Jinho Suh ; Kap-Ho Seo ; Maolin Jin. "Improved Adaptive PID Control Using Time-Delay Estimation for Robot Manipulators." 2019 16th International Conference on Ubiquitous Robots (UR). IEEE, 2019.  [DownLoad]:

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[99]Junyoung Lee, Pyung Hun Chang, Kap-Ho Seo, Maolin Jin, "Stable Gain Adaptation for Time-Delay Control of Robot Manipulators." IFAC-PapersOnLine 52.15 (2019): 217-222.   [DownLoad]:

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[98]Maolin Jin, Jun Young Lee, Pyung-Hun Chang, Min-Gyu Kim, and Sang Hoon Kang, "Automatic Gain Tuning for Robust PID Control Using Time-Delay Control." 20th World Congress The International Federation of Automatic Control (IFAC), July 9-14, 2017   [DownLoad]:

[97]Maolin Jin, Jinwook Kim, Junyoung Lee, and Pyung Hun Chang. "Improving Time-Delay Control for Robot Manipulators Using TSK Fuzzy Logic Control Systems.",2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)  [DownLoad]:

[96]Junyoung Lee, Pyung Hun Chang, and Maolin Jin. "Time-Delay Control With Adaptive Gain Dynamics for Robot Manipulators." 2017 IEEE International Conference on Advanced Intelligent Mechatronics (AIM)  [DownLoad]:

[95] Dong Jin Lee, Sung Jin Bae, Sung Ho Jang, and Pyung Hun Chang, "Design of a clinically relevant upper-limb exoskeleton robot for stroke patients with spasticity," 2017 International Conference on Rehabilitation Robotics (ICORR), London, 2017, pp. 622-627.  [DownLoad]:

[94]Sung Jin Bae, Sung Ho Jang, Jeong Pyo Seo, Pyung Hun Chang, "A pilot study on the optimal speeds for passive wrist movements by a rehabilitation robot of stroke patients: A functional NIRS study," 2017 International Conference on Rehabilitation Robotics (ICORR), London, 2017, pp. 7-12.  [DownLoad]:

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[93]Ali Ghanbari, Pyung H. Chang, Hongsoo Choi, and Bradley J, Nelson "Time delay estimation for control of Microrobots under uncertainties", 

2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) Wollongong, Australia, July 9-12, 2013  [DownLoad]:

[92]Jin Oh Lee, Pyung Hun Chang, Rodrigo S. Jamisola, jr. "Relative Task Prioritization for Dual-Arm with Multiple, Conflicting Tasks: Derivation and Experiments", IEEE International Conference on Robotics and Automation (ICRA), 2013  [DownLoad]:

[91]YeaSeok Park , PyungHun Chang, KyungSoo Kim and Soohyun Kim "Control and synchronization of Lorenz systems via robust backstepping technique", 2012 12th International Conference on Control, Automation and Systems in ICC, Jeju Island, Korea, pp.328-332, Oct. 17-21, 2012

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[90]Rodrigo S. Jamisola, Jr., Pyung Hun Chang, and Jinoh Lee "Guaranteeing Task Prioritization for Redundant Robots Given Maximum Number of Tasks and Singularities", TENCON 2012 - 2012 IEEE Region 10 Conference  [DownLoad]:

[89]Jinoh Lee, Pyung-Hun Chang and Dae-Gab Gweon "A Cost Function Inspired by Human Arms Movement for a Bimanual Robotic Machining", 2012 IEEE International Conference on Robotics and Automation RiverCentre, Saint Paul, Minnesota, USA May 14-18, 2012

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[88]Dong Ki Han, Pyung-hun Chang, Yun-ho Shin and Kwang-joon Kim, " Improvement of Dual Chamber Pneumatic Vibration Isolators by using Input-Output Linearization and Time Delay Control", IECON 2011-37th Annual, pp.183-190

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[87]Donghan Koo and Pyung Hun Chang "Shoulder Mechanism Design of an Exoskeleton Robot for Stroke Patient Rehabilitation", 2011 IEEE International Conference on Rehabilitation Robotics Rehab Week Zurich, ETH Zurich Science City, Switzerland, June 29 - July1, 2011

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[86]Kyungbin Park and Pyung Hun Chang "Stochastic Estimation of Human Shoulder Impedance with Robots: An Experimental Design", 2011 IEEE International Conference on Rehabilitation Robotics Rehab Week Zurich, ETH Zurich Science City, Switzerland, June 29 - July1, 2011

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[85]Y. Jin, P.H. Chang and Y.S. Park, "Stability Analysis and Design of a Time Delay Estimation Based Control for a Class of Nonlinear Uncertain Systems", 49th IEEE Conference on Decision and Control, Atlanta, USA, pp.4084-4089, 2010.  [DownLoad]:

[84]Jae Won Jeong, Pyung Hun Chang, and Jinoh Lee, "Enhanced Operational Space Formulation for Multiple Tasks using Time Delay Estimation," in Proc. IEEE/RSJ Int. Conf. Intell. Robots Syst.(IROS 2010),Taipei, Taiwan, pp. 4390-4395, Oct 2010.  [DownLoad]:

[83]G. R. Cho, P. H. Chang,Y. Jin, “Enhanced feedforward control of non-minimum phase systems for tracking predefined trajectory,” IEEE Int. Symposium on Industrial Electronics(ISIE 2010), Bary, Italy, pp.167-172, 2010.  [DownLoad]:

[82]P. H. Chang, J. W. Jeong, K.B. Park, G. R. Cho, and G. M. Gu, "Modeless and sensorless External Force Estimation using Time-Delay Estimation : Application to the Impedance control", in Proc. Of the 5th International Conference on the Advanced Mechatronics (ICAM2010), Osaka, Japan, pp.385-391, October 4-6, 2010  [DownLoad]:

[81] Jae Won Jeong, Pyung Hun Chang, "A Task-priority Based Framework for Multiple Tasks in Highly Redundant Robots" in Proc. of IEEE/RSJ, St Louis, USA October 11-15, 2009 .  [DownLoad]:

[80] P.H. Chang, S.H. Kang and K.B. Park, "Stochastic estimation of human arm impedance under Nonlinear friction in robot joints: a model study," in Proc. of IEEE 11th International Conference on Rehabilitation Robotics, Kyoto Japan, pp 147-154, June 23-26, 2009.  [DownLoad]:

[79] K. B. Park and P. H. Chang, "A vision enhancement technique for remote control of fire fighting robots,". in Proc .of the 39th International Symposium on Robotics, Seoul, Korea, pp. 489-494, Oct 15-17,2008.  

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[78] S. T. Kim and , P. H. Chang, “Safety-ensuring systematic design for service robots”, in Proc. 6th Int. Conf. on smart Homes and Health Telematics(ICOST), Iowa, USA, pp.208-217, June 28- July 2,2008.  [DownLoad]:

[77] Dong Ki Han, Pyung Hun Chang, and Maolin Jin, “Robust trajectory control of robot manipulators using time delay control with adaptive compensator,”in Proc. of IFAC July.2008.  [DownLoad]:

[76] Sang Hoon Kang, Maolin Jin, and Pyung Hun Chang, “An IMC based enhancement of accuracy and robustness of impedance control,” in Proc. of IEEE International Conference on Robotics and Automation, Pasedana, CA, pp 2623-2628, May 19-23, 2008.  [DownLoad]:

[75] Dong Ki Han and Pyung Hun Chang, "A Robust Two-Time-Scale Control Design for a Pneumatic Vibration Isolator",in Proc. of IEEE Conference on Decision and Control, Dec.2007.  [DownLoad]:

[74] Jae Won Jeong and Pyung Hun Chang, "An Efficient Framework for Multiple Tasks in Human-like Robots",in Proc. of IEEE-RAS International Conference on Humanoid Robots, Nov.2007.  [DownLoad]:

[73] Jonghyun Kim and Pyung Hun Chang , "Extended Transparency as a Quantitative Performance Measure in Bilateral Teleoperation", in Proc. of IEEE/RSJ International Conference on Intelligent Robots and Systems, Nov.2007.  [DownLoad]:

[72] Je Hyung Jung, Pyung-Hun Chang and Sang Hoon Kang, “Stability Analysis of Discrete Time Delay Control for Nonlinear Systems”, in Proc. of the American Control Conference(ACC 2007), pp.5995-6002, July. 2007.  [DownLoad]:

[71] Pyung Hun Chang and Maolin Jin, “Nonlinear target impedance design and its use in robot compliant motion control with time delay estimation,” in Proc.32nd Annual Conf. of IEEE Industrial Electronics Society (IECON2006), Paris, France, pp.161-166, Nov. 2006.  [DownLoad]:

[70] Pyung-Hun Chang, Young-Hwan Kang, Gun Rae Cho, Jong Hyun Kim, Maolin Jin, Jinoh Lee, Jae Won Jeong, Dong Ki Han, Je Hyung Jung, Woo-Jun Lee and Yong-Bo Kim, “Control architecture design for a fire searching robot using task oriented design methodology,” in Proc. SICE-ICASE International Joint Conference (ICCAS2006), Busan, Korea, pp.3126-3131, Oct. 2006.  [DownLoad]:

[69] G.R. Cho, P.H. Chang, and S. H. Park, “Robustifying Internal Model Control,” in Proc. of the 7th International Workshop on Human-friendly Welfare Robotics Systems, pp. 83-90, Oct. 2006.  [DownLoad]:

[68] Maolin Jin, Sang Hoon Kang, Pyung Hun Chang, “A robust compliant motion control of robot with certain hard nonlinearities using time delay estimation,” in Proc. IEEE Int. Symposium Ind. Electron., Montreal, Quebec, Canada, pp. 311-316, July 2006.  [DownLoad]:

[67] G.R. Cho, P.H. Chang and S.H. Park, “Robust trajectory control of robot manipulators using time delay estimation and internal model concept,” in Proc. 44th IEEE Conf. Decision Control and European Control Conf., pp. 3199-3206, Dec. 2005.  [DownLoad]:

[66] P. H. Chang, S. H. Park, G.R. Cho, and J.H. Jung, “A target-oriented design of a robot arm assisting PWD at working place,” in Proc. 6th Int. Workshop on Human-friendly Welfare Robotic Systems (HWRS), pp. 301-307, Daejeon, Korea, Nov. 2005.  [DownLoad]:

[65] P. H. Chang, S. R. Park, G.R. Cho, J.H. Jung and S.H. Park, “Development of a robot arm assisting people with disabilities at working place using task-oriented design,” in Proc. 9th Int. Conf. on Rehabilitation Robotics (ICORR), pp. 482-487, Jun. 2005.  [DownLoad]:

[64] S.H. Kang, M. Jin, P.H. Chang, and E. Lee, “Nonlinear bang-bang impact control for free space, impact and constrained motion: multi-DOF case,” in Proc. American Control Conf., vol.3, pp. 1913-1920, USA, Jun. 2005.  [DownLoad]:

[63] M. Jin, S.H. Kang, P.H. Chang, and E. Lee, “Nonlinear bang-bang impact control: a seamless control in all contact modes,” in Proc. IEEE Int. Conf. Robotics and Automation, pp.557-564, Apr. 2005.  [DownLoad]:

[62] H.S. Park, P.H. Chang and J.H. Kim, “Significance of causality analysis for transparent teleoperation,” in Proc. IEEE Int. Conf. Robotics and Automation, pp 697-702, Apr. 2005.  [DownLoad]:

[61] J.H. Kim, P.H. Chang and H.S. Park, “Transparent teleoperation using two-channel control architectures,” in Proc. IEEE/RSJ Int. Conf. Intell. Robots and Syst. (IROS), pp 1953-1960, 2005.  [DownLoad]:

[60] P.H. Chang , “Direction for Development of Service(Welfare) Robot Industry,” International Robot Industry Forum, Nov. 12, 2004.(Invited Talk)

[59] J.Y. Park, P.H. Chang, J.O. Kim, “Use of grid method for efficient global optimum design of robot kinematics,” in Proc. 5th Int. Workshop on Human-friendly Welfare Robotic Systems (HWRS), pp. 99-104, Daejeon, Korea, 2004.  

[58] S.H. Kang, P.H. Chang and E. Lee, “Stability analysis of nonlinear bang-bang impact control for a one degree of freedom robotic manipulator,” in Proc. IEEE Int. Conf.Mechatron., pp. 84-91, Jun. 2004.  [DownLoad]:

[57] S. H. Kang, M. Jin, P. H. Chang, and E. Lee, “Robot interaction control in unstructured space environment for space exploration,” in Proc. AIAA unmanned unlimited technical conference, AIAA-2004-6567 Chicago, Sept. 2004.  [DownLoad]:

[56] S.H. Kang, P.H. Chang and M. Jin and E. Lee, “Nonlinear bang-bang impact control using time delay: stability analysis and experiments,” in CDROM preprints 5th IFAC Workshop Time Delay System, paper173.pdf, Leuven, Belgium, Sept. 2004.  [DownLoad]:

[55] J.H. Jung, P.H. Chang and O.S. Kwon, “A new stability analysis of time delay control for input-output linearizable plants,” in Proc. American Control Conf., vol.6, pp. 4972-4979, Jun. 2004.  [DownLoad]:

[54] P.H. Chang, J.H. Jung and J. Lee, “A simple tuning method for robust MIMO PID control,” in CDROM Proc. Int. Conf. Electrical Machines and Syst. (ICEMS), PD-11(630-S01-015) , 2004.  

[53] S.U. Lee, P.H. Chang and S.T. Kim, “Time delay control with switching action using frequency-shaped integral sliding surface,” in Proc. American Control Conf., vol.1, pp. 202-207, Jun. 2003.  [DownLoad]:

[52] E. Lee, P.H. Chang, J. Park and Cheryl B. Schrader, “Hybrid impedance/time-delay control from free space to constrained motion,” in Proc. American Control Conf., pp. 2132-2137, Jun. 2003.  [DownLoad]:

[51] E. Lee, J. Park, Cheryl B. Schrader and P.H. Chang, “Impact when robots act wisely,” in Proc. IEEE Int. Conf. Robotics and Automation, vol.3, pp. 3692-3697, Sept. 2003.  [DownLoad]:

[50] Z. Bien, D.J.Kim, M.J.Chung, D. Kwon and P.H. Chang, “Development of a wheelchair-based rehabilitation robotic system (KARES II) with various human-robot interaction interfaces for the disabled,”, in Proc. Int. Conf. on Advanced Intell. Mechatron. , pp. 902-907, July 2003.
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[49] P.H. Chang, "Target-Oriented Design of Robots for Handicapped People: Design Philosophy and Two case Studies," International Conference on Rehabilitation Robotics, Apr. 25, 2003. (Plenary speaker)  

[48] P.H. Chang, S.H. Kang, H.S. Park, S.T. Kim and J.H. Kim, “Active compliance control for the rehabilitation robot with cable transmission,” in Proc. 8th Int. Conf. on Rehabilitation Robotics (ICORR), pp. 84-87, Daejeon, Korea, Apr. 2003.  [DownLoad]:

[47] P.H. Chang, "Target-Oriented Approach to Robot Design and Its Application to a Fire-fighting Robot," Japan Symposium on Rescue Robotics, Jan. 24, 2003. (Plenary speaker)  

[46] S.U. Lee, P.H. Chang and J.H. Jung, “The development of anti-windup scheme for time delay control with switching action using integral sliding surface,” in CDROM Proc. 33rd Int. Symp. Robotics, 054_p84.pdf, Stockholm, Sweden, Oct. 2002.  [DownLoad]:

[45] H.S. Park and P.H. Chang, “Causality analysis Using bond-graph and its significance in bilateral teleoperation,” in Proc. IEEE/RSJ Int. Conf. Intell. Robots and Syst. (IROS), vol 1, pp.2991-2998, Oct. 2002.  [DownLoad]:

[44] J. Park, P.H. Chang and E. Lee, “Can a time invariant input shaping technique eliminate residual vibrations of LTV systems?” in Proc. American Control Conf., vol.3, pp. 2292-2297, May 2002.  [DownLoad]:

[43] K.C. Park, P.H. Chang and S. Lee, “A new kind of singularity in redendant manipulation: semi algorithmic singularity,” in Proc. IEEE Int. Conf. Robotics and Automation, pp.1979-1984, May 2002.  [DownLoad]:

[42] Pyung-Hun Chang, Joon-Young Park and Jeong-Yean Yang, “Task Oriented Design of Robot Kinematics using Grid Method and Its Applications to Nuclear Power Plant,” International symposium on Artificial Intelligence, Robotics and Human Centered Technology for Nuclear applications, pp.114-123, Japan, Jan. 2002.  [DownLoad]:

[41] P. H. Chang, J.Y. Park and J.Y. Yang, “Task oriented design of robot kinematics using grid method,” in Proc. 3rd Int. Workshop on Human-friendly Welfare Robotic Systems (HWRS), pp.10-21, Daejeon, Korea, Jan. 2002. 

[40] P.H. Chang, H.S. Park, J. Park, J.H. Jung, B.K. Jeon, “Target-oriented design of a robotic arm for physically disabled people,” 2nd International Workshop on Human-friendly Welfare Robotic Systems (HWRS), pp. 67-74, Daejeon, Korea, Jan. 2001. 

[39] P.H. Chang, H.S. Park, J.Park, J.H. Jung, and B.K. Jeon, “Development of a robotic arm for handicapped people: a target-oriented design approach,” in Proc. 7th Int. Conf. on Rehabilitation Robotics (ICORR) ,Integration of Assistive Technology in the Information Age, vol. 9 pp. 84-92, Evry, France, Apr. 2001.  [DownLoad]:

[38] J.Y. Park and P.H. Chang, “Vibration control of telescopic handler using time delay control and commandless input shaping technique,” in Proc. 32nd Int. Symp. Robotics, pp.20-25, Apr. 2001.  [DownLoad]:

[37] S.U. Lee and P.H. Chang, “Trajectory control of an electro-hydraulic excavator Using a robust controller,” in Proc. 32nd Int. Symp. Robotics, pp.1380-1385, Apr. 2001.  

[36] S.U. Lee and P.H. Chang, “Control of a heavy-duty robotic excavator using time delay control with switching action with integral sliding surface,” in Proc. IEEE Int. Conf. Robotics and Automation, pp.3955-3960, May 2001.  [DownLoad]:

[35] Zeungnam Bien, PyungHun Chang, Won-Kyung Song, and Hyung-Soon Park, “Wheelchair-based robotic arm system, KARES II, for the disabled - a robotic arm and visual servoing,” 2001 ICRA Workshop, pp.3662-3667, Seoul , Korea, May 2001.  

[34] Z. Bien, W.K. Song, D. Kwon, M.J. Chung, P. H. Chang, H.S. Park, D.J. Kim, J.H. Kim, K. Lee, “A wheelchair robot system and its various interface methods for the disabled persons,” in Proc. 2001 IARP/IEEE-RAS Joint Workshop, Technical Challenge for Dependable Robots in Human Environments, VI-4, Seoul, Korea, May, 2001.  

[33] P.H. Chang, J. Park, and J.Y. Park, “Commandless input shaping technique,” in Proc. American Control Conf., pp.299-304, Jun. 2001.
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[32] J. Park, H.S. Park and P.H. Chang, “Design of a learing input shaping technique for suppressing residual vibration of an industrial robot,” in CDROM Proc. 7th Mechatron. Forum Int. Conf., 10-05.pdf, Sept. 2000.  [DownLoad]:

[31] S.H. Park, P.H. Chang, “An enhanced time delay observer for nonlinear systems,” Proc. 3rd IASTED Int. Conf. Intell. Syst. Contr. (ISC2000), pp.268-274, 2000.  [DownLoad]:

[30] P. H. Chang, K. C. Park, S. Lee, “Dynamic formulations for kinematically redundant manipulator: a comparative study,” in Proc. 1st Int. Workshop on Human-friendly Welfare Robotic Systems (HWRS), pp. 129-164, Daejeon, Korea, Jan. 2000. 

[29] S.J. Lee, P.H. Chang and Y.M. Kwon, “An experimental study on cartesian tracking control of automated excavator system using TDC-based robust control design,” in Proc. American Control Conf., vol 5, pp.3180-3185, Jun. 1999.  [DownLoad]:

[28] H.S. Park, P.H. Chang and D.Y. Lee, “Continuous zero phase error tracking controller with gain error compensation,” in Proc. American Control Conf., vol.5, pp.3554~3558, Jun. 1999.  [DownLoad]:

[27] H.S. Park and P.H. Chang, J. S. Hur, “Time-varing input shaping technique applied to vibration reduction of an industrial robot,” in Proc. Int. Conf. Intell. Robots and Syst. (IROS), vol. 1, pp.285-290, Oct. 1999.  [DownLoad]:

[26] K.C. Park, P.H. Chang and S.H. Kim, “Characteristics of optimal solutions in resolving manipulator redundancy under inequality contraints,” in Proc. Int. Conf. Intell. Robots and Syst. (IROS), vol. 1, pp.442-447, Oct. 1999.  [DownLoad]:

[25] J. Park and P.H. Chang, “Learning input shaping technique for non-LTI systems,” in Proc. American Control Conf., vol. 5, pp. 2652-2656, Jun. 1998.  [DownLoad]:

[24] P.H. Chang and S.H. Park, “The development of anti-windup scheme and stick-slip compensator for time delay control,” in Proc. American Control Conf., vol.6, pp.3629-3633, Jun. 1998.  [DownLoad]:

[23] P.H. Chang, J.H. Lee and S.H. Park, “A reduced order time-delay control for highly simplified brushless DC motor,” in Proc. American Control Conf., vol.6, pp.3791-3795, Jun. 1998.  [DownLoad]:

[22] J.W. Lee, P. H. Chang, “Input/output linearization using time delay control and time delay observer,” in Proc. American Control Conf., vol 1, pp. 318-322, Jun. 1998.  [DownLoad]:

[21] K. C. Park, P.H. Chang and S.H. Kim, “The enhanced compact QP method for redundant manipulators using practical inequality constraints,” in Proc. IEEE Int. Conf. Robotics and Automation, vol 1, pp.107-114, May 1998.  [DownLoad]:

[20] P.H. Chang and S.H. Park, “The enhanced time delay observer using low pass filter for nonlinear systems,” in Proc. 37th Int. Conf. Decision and Control, vol.1, pp.367-368, 1998.  [DownLoad]:

[19] K.C. Park, P.H. Chang, and Salisbury J. Kenneth, “A unified approach for local resoution of kinematic redundancy with inequality constraints and its application to nuclear power plant,” in Proc. IEEE Int. Conf. Robotics and Automation, vol.1 , pp. 766-773, 1997.  [DownLoad]:

[18] P.H.Chang and J.W.Lee, “Time delay observer for nonlinear MIMO plants,” in Proc. 2nd Asian Control Conf., vol. 1, pp. 257-260, 1997.

[17] K.C. Park, P.H. Chang, “Kinematic control of redundant manipulators in a constrained environment and its application to a nozzle dam task for a nuclear power plant,” in Proc. 27th Int. Symp. Industrial Robots (ISIR), pp. 237-242, Oct. 1996.  

[16] P.H. Chang, K.C. Park, “An extension to operational space formulation for kinematically redundant manipulators: kinematics, dynamics and control,” in Proc. 27th Int. Symp. Industrial Robots (ISIR), pp. 533-538, Oct. 1996.  

[15] K.C. Park and P.H. Chang, “Resolution of kinematic redundancy using constrained optimization techniques under kinematic inequality constraints,” in Proc. 11th Korea Automatic Control Conf. (KACC), pp.69-72. Oct. 1996.  

[14] K.C. Park , P.H. Chang and S.H. Kim, “Local path-planning of a 8-dof redundant robot for the nozzle dam installation/detachment of the nuclear power plants,” in Proc. 11th Korea Automatic Control Conf. (KACC), pp.133-136. Oct. 1996.  [DownLoad]:

[13] P.H. Chang and J. Park, “Use of input shaping technique with a robust feedback control and its application to the position control of surface mount machine,” in Proc. IEEE Int. Conf. Control Applications, pp. 397-402, Sept. 1996.  [DownLoad]:

[12] S.H. Park, K.C. Park, P.H. Chang, “Global path planning of robot manipulator with kinematic redundancy and its applications,” in Proc. 1st Asia-Pacific Conf. Simulated Evolution and Learning, pp. 227-234, Nov. 1996.  

[11] J.H. Lee, P.H.Chang, Y.C. Lee and S.Y. Lee, “A robust control compensates for hardware deficiency in the plant: time delay control for the BLDC motor drive,” in Proc. American Control Conf. vol. 5, pp. 3813-3817, Jun. 1995.  [DownLoad]:

[10] P.H. Chang and J.W. Lee, “Time-delay observer: a robust observer for nonlinear plants using time-delayed signal,” in Proc. American Control Conf., vol. 3, pp. 21-23, Jun. 1995.  [DownLoad]:

[9] P.H. Chang and J.W. Lee, “A robust observer design for nonlinear MIMO plants using time-delayed signals,” in Proc. 3rd European Control Conf., pp. 3760-3765, Sept. 1995.  [DownLoad]:

[8] S.H. Kim and P.H. Chang, “Optimal control of vibration of flexible robot arm with linear actuator,” 1994年度 弟12回 日本 ロボット學會學術講演會, pp. 105-107, 1994. 

[7] P.H.Chang and J.W.Lee, “An observer design for time-delay control and its application to trajectory control of robot with high speed,” in Proc. 5th Int. Symp. Robotics and Manufacturing (ISRAM’94), vol.5, pp.41-46, ASME Press, 1994. 

[6] P.H.Chang and J.W.Lee, “A model reference observer for time-delay control and its application to robot trajectory control,” in Proc. 4th IFAC Symp. Robot Control, pp. 29-34, Sept. 1994.  [DownLoad]:

[5] P.H.Chang, D.S.Kim and J.W.Lee, “An intelligent force/position control of robot manipulator using time delay control,” in Proc. IEEE Conf. Intell. Robots and Syst. (IROS), vol. 3, pp.1632-1638, Sept. 1994.  [DownLoad]:

[4] P.H.Chang and J.W.Lee, “An observer design for time-delay control and its application to DC servo motor,” in Proc. American Control Conf., pp.1032-1036, 1993.  [DownLoad]:

[3] Sung-Mu Chin, Pyung-Hun Chang and Chung-Oh Lee, “Application of the time Delay Control for An Electrohydraulic Servo System,” Proc. of the 3rd ICFP, pp.309-3112, 1993.  [DownLoad]:

[2] P.H. Chang, “A dexterity measure for the control of redundant manipulators,” in Proc. American Control Conf., pp 496-502, 1989. [DownLoad]:

[1] P.H. Chang, “A closed-form solution for the control of manipulators with kinematic redundancy,” in Proc. IEEE Int. Conf. Robotics and Automation, vol. 3, pp. 3-14, 1986. [DownLoad]: