Patents by Inventor John T. Wen
John T. Wen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11029049Abstract: A collaborative energy management system, method and program product for a multi-zone space. A system is disclosed including: a plurality of environment sensors located throughout the multi-zone space; an adaptive learning system that collects environment data from the environment sensors and generates a correlation model that correlates historical environment data with HVAC settings; and an optimization system that utilizes the correlation model, inputted preferences received from a plurality of occupants within the multi-zone space, and energy usage goals to periodically generate new HVAC settings for controlling an HVAC system for the multi-zone space.Type: GrantFiled: August 14, 2015Date of Patent: June 8, 2021Assignee: Rensselaer Polytechnic InstituteInventors: Santosh K Gupta, Koushik Kar, Sandipan Mishra, John T. Wen
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Patent number: 10896739Abstract: Method, system and computer program product are provided for estimating a circadian phase of a subject by: obtaining a sensed biological signal for the subject; and using, by one or more processors, adaptive frequency tracking to adaptively estimate the circadian phase of the subject from the sensed biological signal. Circadian phase estimation may be accelerated by providing a feedback loop for the adaptive frequency tracking, which utilizes, in part, a circadian phase model in automatically ascertaining a phase correction for the adaptive frequency tracking. The circadian phase estimation may be used in automatically constructing a light-based circadian rhythm model for the subject using a linear parameter-varying (LPV) formulation, and once constructed, the circadian rhythm model for the subject may be used to provide light-based circadian rhythm regulation.Type: GrantFiled: November 20, 2019Date of Patent: January 19, 2021Assignee: Rensselaer Polytechnic InstituteInventors: Jiaxiang Zhang, John T. Wen, Agung Julius
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Publication number: 20200090781Abstract: Method, system and computer program product are provided for estimating a circadian phase of a subject by: obtaining a sensed biological signal for the subject; and using, by one or more processors, adaptive frequency tracking to adaptively estimate the circadian phase of the subject from the sensed biological signal. Circadian phase estimation may be accelerated by providing a feedback loop for the adaptive frequency tracking, which utilizes, in part, a circadian phase model in automatically ascertaining a phase correction for the adaptive frequency tracking. The circadian phase estimation may be used in automatically constructing a light-based circadian rhythm model for the subject using a linear parameter-varying (LPV) formulation, and once constructed, the circadian rhythm model for the subject may be used to provide light-based circadian rhythm regulation.Type: ApplicationFiled: November 20, 2019Publication date: March 19, 2020Applicant: Rensselaer Polytechnic InstituteInventors: Jiaxiang ZHANG, John T. WEN, Agung JULIUS
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Patent number: 10529440Abstract: Method, system and computer program product are provided for estimating a circadian phase of a subject by: obtaining a sensed biological signal for the subject; and using, by one or more processors, adaptive frequency tracking to adaptively estimate the circadian phase of the subject from the sensed biological signal. Circadian phase estimation may be accelerated by providing a feedback loop for the adaptive frequency tracking, which utilizes, in part, a circadian phase model in automatically ascertaining a phase correction for the adaptive frequency tracking. The circadian phase estimation may be used in automatically constructing a light-based circadian rhythm model for the subject using a linear parameter-varying (LPV) formulation, and once constructed, the circadian rhythm model for the subject may be used to provide light-based circadian rhythm regulation.Type: GrantFiled: June 4, 2013Date of Patent: January 7, 2020Assignee: Rensselaer Polytechnic InstituteInventors: Jiaxiang Zhang, John T. Wen, Agung Julius
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Patent number: 10265227Abstract: A robotic assistant, associated software and methodology for operating the same. The described robotic assistant includes: a motorized base having at least two motor driven wheels controlled by a first control platform; a dual arm robot mounted on the motorized base, the dual arm robot having a first arm and a second arm controlled by a second control platform; a remote sip and puff mouth controller having three degrees of operational freedom; and a computer system that receives command signals from the remote sip and puff mouth controller, and includes an algorithm that translates the command signals into a first type of control signal for directing the motorized base to move, and a second type of control signal for directing the dual arm robot to move.Type: GrantFiled: March 20, 2015Date of Patent: April 23, 2019Assignee: Rensselaer Polytechnic InstituteInventors: John T. Wen, Jonas Braasch, Utkarsh Sinha, Andrew Cunningham, William H. Keddy-Hector, Daniel C. Kruse, David Whalen, Lu Lu
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Publication number: 20170211837Abstract: A collaborative energy management system, method and program product for a multi-zone space. A system is disclosed including: a plurality of environment sensors located throughout the multi-zone space; an adaptive learning system that collects environment data from the environment sensors and generates a correlation model that correlates historical environment data with HVAC settings; and an optimization system that utilizes the correlation model, inputted preferences received from a plurality of occupants within the multi-zone space, and energy usage goals to periodically generate new HVAC settings for controlling an HVAC system for the multi-zone space.Type: ApplicationFiled: August 14, 2015Publication date: July 27, 2017Inventors: Santosh K. Gupta, Koushik Kar, Sandipan Mishra, John T. Wen
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Publication number: 20170095382Abstract: A robotic assistant, associated software and methodology for operating the same. The described robotic assistant includes: a motorized base having at least two motor driven wheels controlled by a first control platform; a dual arm robot mounted on the motorized base, the dual arm robot having a first arm and a second arm controlled by a second control platform; a remote sip and puff mouth controller having three degrees of operational freedom; and a computer system that receives command signals from the remote sip and puff mouth controller, and includes an algorithm that translates the command signals into a first type of control signal for directing the motorized base to move, and a second type of control signal for directing the dual arm robot to move.Type: ApplicationFiled: March 20, 2015Publication date: April 6, 2017Applicant: Rensselaer Polytechnic InstituteInventors: John T. Wen, Jonas Braasch, Utkarsh Sinha, Andrew Cunningham, William H. Keddy-Hector, Daniel C. Kruse, David Whalen, Lu Lu
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Publication number: 20150186594Abstract: Method, system and computer program product are provided for estimating a circadian phase of a subject by: obtaining a sensed biological signal for the subject; and using, by one or more processors, adaptive frequency tracking to adaptively estimate the circadian phase of the subject from the sensed biological signal. Circadian phase estimation may be accelerated by providing a feedback loop for the adaptive frequency tracking, which utilizes, in part, a circadian phase model in automatically ascertaining a phase correction for the adaptive frequency tracking. The circadian phase estimation may be used in automatically constructing a light-based circadian rhythm model for the subject using a linear parameter-varying (LPV) formulation, and once constructed, the circadian rhythm model for the subject may be used to provide light-based circadian rhythm regulation.Type: ApplicationFiled: June 4, 2013Publication date: July 2, 2015Applicant: RENSSELAER POLYTECHNIC INSTITUTEInventors: Jiaxiang Zhang, John T. Wen, Agung Julius
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Patent number: 8746310Abstract: A microassembly method and system utilizing multiple probes. Multiple manipulation actuators can be utilized for maintaining/holding one or more probes and an assembly substrate. Multiple microscope cameras can be configured to provide three distinct workspace configurations. At the center of each manipulation actuator is a die stage, which supports the assembly substrate upon which parts are assembled. A glue dispenser can also provide glue to a part prior to placement.Type: GrantFiled: May 11, 2012Date of Patent: June 10, 2014Assignee: The United States of America, as represented by the Secretary of Commerce, The National Instutute of Standards and TechnologyInventors: John Wason, John T. Wen, Jason Gorman, Nicholas Dagalakis
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Publication number: 20120304786Abstract: A microassembly method and system utilizing multiple probes. Multiple manipulation actuators can be utilized for maintaining/holding one or more probes and an assembly substrate. Multiple microscope cameras can be configured to provide three distinct workspace configurations. At the center of each manipulation actuator is a die stage, which supports the assembly substrate upon which parts are assembled. A glue dispenser can also provide glue to a part prior to placement.Type: ApplicationFiled: May 11, 2012Publication date: December 6, 2012Inventors: John Wason, John T. Wen, Jason Gorman, Nicholas Dagalakis
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Patent number: 7742213Abstract: An adaptive scanning optical microscope has a scanner lens assembly for acquiring images from different parts of an object plane and for forming a preferably curved image field having at least some aberration which varies as a function of the part of the object plane from which the image is acquired. A steering mirror selects the field of view and steers light from the object and along a light path from the object plane to a final image plane. An adaptive optics element receives the steered light from the object and compensates for the field position dependent optical aberrations and additional optics are along at least part of the light path for conditioning and focusing the light as it moves from the steering mirror, past the adaptive optics element and to the final image plane.Type: GrantFiled: June 5, 2007Date of Patent: June 22, 2010Assignee: Rensselaer Polytechnic InstituteInventors: Benjamin Michael Potsaid, Yves Bellouard, John T. Wen
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Patent number: 7253946Abstract: An optical system is provided for creating a mosaic image of a large field of view through a microscope at fast refresh rates of about 25 Hz with a high resolution that is free of blurring or aberrations. The optical system includes an objective lens assembly (20), an iris (30), one or more scanning mirrors (40) for high-speed scanning, one or more imaging lenses and irises (50, 60, 80), and a high-speed imaging device (70) arranged in that order from an object. The optical system also includes a mechanism for processing and constructing scanned and captured images into a mosaic image.Type: GrantFiled: September 15, 2003Date of Patent: August 7, 2007Assignee: Rensselaer Polytechnic InstituteInventors: Yves Bellouard, Benjamin Michael Potsaid, John T. Wen
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Patent number: 7028856Abstract: This crane control apparatus and method with swing control and variable impedance is intended for use with overhead cranes where a line suspended from a moveable hoist suspends a load. It is responsive to operator force applied to the load and uses a control strategy based on estimating the force applied by the operator to the load and, subject to a variable desired load impedance, reacting in response to this estimate. The human pushing force on the load is not measured directly, but is estimated from measurement of the angle of deflection of the line suspending the load and measurement of hoist position.Type: GrantFiled: August 7, 2003Date of Patent: April 18, 2006Assignee: Gorbel, Inc.Inventors: Bradford B. Laundry, Li-te Liu, Gustavo Montemayor, Dan O. Popa, Michael K. Taylor, John T. Wen
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Patent number: 6796447Abstract: This crane control system with swing control and variable impedance is intended for use with overhead cranes where a line suspended from a moveable hoist suspends a load. It is responsive to operator force applied to the load and uses a control strategy based on estimating the force applied by the operator to the load and, subject to a variable desired load impedance, reacting in response to this estimate. The human pushing force on the load is not measured directly, but is estimated from measurement of the angle of deflection of the line suspending the load and measurement of hoist position.Type: GrantFiled: February 6, 2002Date of Patent: September 28, 2004Assignee: Gorbel, Inc.Inventors: Bradford B. Laundry, Li-te Liu, Gustavo Montemayor, Dan O. Popa, Michael K. Taylor, John T. Wen
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Publication number: 20040155004Abstract: This crane control apparatus and method with swing control and variable impedance is intended for use with overhead cranes where a line suspended from a moveable hoist suspends a load. It is responsive to operator force applied to the load and uses a control strategy based on estimating the force applied by the operator to the load and, subject to a variable desired load impedance, reacting in response to this estimate. The human pushing force on the load is not measured directly, but is estimated from measurement of the angle of deflection of the line suspending the load and measurement of hoist position.Type: ApplicationFiled: August 7, 2003Publication date: August 12, 2004Inventors: Bradford B. Laundry, Li-Te Liu, Gustavo Montemayor, Dan O. Popa, Michael K. Taylor, John T. Wen
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Publication number: 20020144969Abstract: This crane control system with swing control and variable impedance is intended for use with overhead cranes where a line suspended from a moveable hoist suspends a load. It is responsive to operator force applied to the load and uses a control strategy based on estimating the force applied by the operator to the load and, subject to a variable desired load impedance, reacting in response to this estimate. The human pushing force on the load is not measured directly, but is estimated from measurement of the angle of deflection of the line suspending the load and measurement of hoist position.Type: ApplicationFiled: February 6, 2002Publication date: October 10, 2002Inventors: Bradford B. Laundry, Peter L. Liu, Gustavo Montemayor, Dan O. Popa, Michael K. Taylor, John T. Wen
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Patent number: 6325808Abstract: A robotic system for minimally invasive surgery includes a surgical tool and a docking station for restraining movement of the surgical tool to four degrees of freedom about an incision point in a patient. The docking station includes a plurality of actuators for moving the surgical tool relative to the incision in the patient, and a controller operably connected to the actuators so that movement of the surgical tool may be collaboratively controllable both actively by the controller and manually by a surgeon. Desirably, the surgical tool and the docking station are releasably attachable together. Also disclosed is a computer implemented method employing a first docking station attachable to a suturing surgical tool and a second docking station attachable to gripping surgical tool for autonomously tying a knot in suturing.Type: GrantFiled: December 8, 1998Date of Patent: December 4, 2001Assignee: Advanced Realtime Control Systems, Inc.Inventors: Christopher J. Bernard, Hyosig Kang, Barton L. Sachs, Sunil K. Singh, John T. Wen