Patents by Inventor James E. Colgate
James E. Colgate 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: 11899843Abstract: An indirect haptic device includes a substrate having a top surface and a bottom surface, and a plurality of haptic electrodes and a plurality of island electrodes arranged on the top surface. The device further includes a plurality of transmit electrodes and a plurality of receive electrodes arranged on the bottom surface, a position sensor, and a friction modulator. The device further includes a control device configured to apply bipolar electrical signals to the plurality of transmit electrodes to detect touch locations of a user's appendage and to modulate the friction between the user's appendage and the touch surface. Each of the plurality of haptic electrodes are substantially aligned with and capacitively coupled to a corresponding two of the plurality of transmit electrodes.Type: GrantFiled: December 5, 2022Date of Patent: February 13, 2024Assignee: Tanvas Magic Inc.Inventors: James E. Colgate, Mondher Cherif, David J. Meyer, Craig Shultz
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Patent number: 11886641Abstract: A touchscreen includes conductive islands that are capacitively coupled to conductive traces, where they may be used to provide capacitive sensing of the position of one or more fingers in contact with a touchscreen and/or to exert haptic forces on one or more fingers in contact with a touchscreen.Type: GrantFiled: August 30, 2022Date of Patent: January 30, 2024Assignee: Northwestern UniversityInventors: James E. Colgate, Michael A. Peshkin
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Publication number: 20230097247Abstract: An indirect haptic device includes a substrate having a top surface and a bottom surface, and a plurality of haptic electrodes and a plurality of island electrodes arranged on the top surface. The device further includes a plurality of transmit electrodes and a plurality of receive electrodes arranged on the bottom surface, a position sensor, and a friction modulator. The device further includes a control device configured to apply bipolar electrical signals to the plurality of transmit electrodes to detect touch locations of a user's appendage and to modulate the friction between the user's appendage and the touch surface. Each of the plurality of haptic electrodes are substantially aligned with and capacitively coupled to a corresponding two of the plurality of transmit electrodes.Type: ApplicationFiled: December 5, 2022Publication date: March 30, 2023Inventors: James E. Colgate, Mondher Cherif, David J. Meyer, Craig Shultz
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Publication number: 20220413618Abstract: A touchscreen includes conductive islands that are capacitively coupled to conductive traces, where they may be used to provide capacitive sensing of the position of one or more fingers in contact with a touchscreen and/or to exert haptic forces on one or more fingers in contact with a touchscreen.Type: ApplicationFiled: August 30, 2022Publication date: December 29, 2022Inventors: James E. Colgate, Michael A. Peshkin
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Patent number: 11520406Abstract: An indirect haptic device includes a substrate having a top surface and a bottom surface, and a plurality of haptic electrodes and a plurality of island electrodes arranged on the top surface. The device further includes a plurality of transmit electrodes and a plurality of receive electrodes arranged on the bottom surface, a position sensor, and a friction modulator. The device further includes a control device configured to apply bipolar electrical signals to the plurality of transmit electrodes to detect touch locations of a user's appendage and to modulate the friction between the user's appendage and the touch surface. Each of the plurality of haptic electrodes are substantially aligned with and capacitively coupled to a corresponding two of the plurality of transmit electrodes.Type: GrantFiled: May 27, 2020Date of Patent: December 6, 2022Assignee: Tanvas, Inc.Inventors: James E. Colgate, Mondher Cherif, David J. Meyer, Craig Shultz
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Patent number: 11442546Abstract: A touchscreen includes conductive islands that are capacitively coupled to conductive traces, where they may be used to provide capacitive sensing of the position of one or more fingers in contact with a touchscreen and/or to exert haptic forces on one or more fingers in contact with a touchscreen.Type: GrantFiled: July 9, 2020Date of Patent: September 13, 2022Assignee: Northwestern UniversityInventors: James E. Colgate, Michael A. Peshkin
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Publication number: 20200379568Abstract: An indirect haptic device includes a substrate having a top surface and a bottom surface, and a plurality of haptic electrodes and a plurality of island electrodes arranged on the top surface. The device further includes a plurality of transmit electrodes and a plurality of receive electrodes arranged on the bottom surface, a position sensor, and a friction modulator. The device further includes a control device configured to apply bipolar electrical signals to the plurality of transmit electrodes to detect touch locations of a user's appendage and to modulate the friction between the user's appendage and the touch surface. Each of the plurality of haptic electrodes are substantially aligned with and capacitively coupled to a corresponding two of the plurality of transmit electrodes.Type: ApplicationFiled: May 27, 2020Publication date: December 3, 2020Inventors: James E. Colgate, Mondher Cherif, David J. Meyer, Craig Shultz
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Publication number: 20200356175Abstract: A touchscreen includes conductive islands that are capacitively coupled to conductive traces, where they may be used to provide capacitive sensing of the position of one or more fingers in contact with a touchscreen and/or to exert haptic forces on one or more fingers in contact with a touchscreen.Type: ApplicationFiled: July 9, 2020Publication date: November 12, 2020Inventors: James E. Colgate, Michael A. Peshkin
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Patent number: 10768749Abstract: A haptic touch interface having simultaneous sensing and actuation including an insulating substrate having a front surface and a rear surface and one or more front surface electrodes connected to the front surface of the substrate, wherein the front surface electrodes are arranged in a first pattern. The touch interface further includes one or more rear surface electrodes connected to the rear surface of the substrate, wherein the rear surface electrodes are arranged in a second pattern and the front surface electrodes have a substantial mutual capacitance with the rear surface electrodes. Flying logic is used to control voltages applied to at least one of the front and rear surface electrodes.Type: GrantFiled: January 4, 2019Date of Patent: September 8, 2020Assignees: NORTHWESTERN UNIVERSITY, TANVAS, INC.Inventors: Michael F. D. Olley, Michael A. Peshkin, James E. Colgate
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Patent number: 10739853Abstract: A touchscreen includes conductive islands that are capacitively coupled to conductive traces, where they may be used to provide capacitive sensing of the position of one or more fingers in contact with a touchscreen and/or to exert haptic forces on one or more fingers in contact with a touchscreen.Type: GrantFiled: June 9, 2016Date of Patent: August 11, 2020Assignee: NORTHWESTERN UNIVERSITYInventors: James E Colgate, Michael A Peshkin
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Patent number: 10705610Abstract: A touch interface device that produces tactile and audio output comprising a touch surface, an first electrode coupled to the touch surface that receives a first haptic/audio output potential, a second electrode coupled to a low impedance return path to the device, the first and second electrodes being configured such that when both the first and second electrodes are touched by an appendage of a user, a current flows between the first and second electrodes and the appendage, where the current creates an electric field that imparts a controlled electrostatic force at interfaces of the first electrode and the appendage, and wherein the electrostatic force provides tactile feedback to the appendage of the user and causes vibration in the surrounding air that is audible to the user.Type: GrantFiled: June 17, 2016Date of Patent: July 7, 2020Assignee: NORTHWESTERN UNIVERSITYInventors: James E. Colgate, Michael A. Peshkin, Craig Shultz
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Patent number: 10379616Abstract: Touch interface devices and methods for producing multi-point haptics utilizing simultaneous sensing and actuation are disclosed. In one configuration, one or more electrodes connected to a front surface of a substrate are arranged in a pattern and connected to an electronic controller configured to produce a haptic effect by applying one or more voltages to the electrodes, and measure the locations of one or more touch points by applying one or more voltages to the electrodes. In another configuration the electronic controller is configured to produce a haptic effect by applying positive and/or negative voltages to the electrodes, and measure the locations of one or more touch points by applying positive and/or negative voltages to the electrodes. Also disclosed is a method for using a single set of electrodes on a substrate of a touch interface to simultaneously produce haptic effects on the substrate and measure finger locations relative to the substrate.Type: GrantFiled: February 20, 2015Date of Patent: August 13, 2019Assignees: Northwestern University, Tanvas, Inc.Inventors: Michael A. Peshkin, James E. Colgate, Michael F. D. Olley
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Publication number: 20190138153Abstract: A haptic touch interface having simultaneous sensing and actuation including an insulating substrate having a front surface and a rear surface and one or more front surface electrodes connected to the front surface of the substrate, wherein the front surface electrodes are arranged in a first pattern. The touch interface further includes one or more rear surface electrodes connected to the rear surface of the substrate, wherein the rear surface electrodes are arranged in a second pattern and the front surface electrodes have a substantial mutual capacitance with the rear surface electrodes. Flying logic is used to control voltages applied to at least one of the front and rear surface electrodes.Type: ApplicationFiled: January 4, 2019Publication date: May 9, 2019Inventors: Michael F.D. Olley, Michael A. Peshkin, James E. Colgate
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Publication number: 20190121436Abstract: Touch interface devices having systems and methods for producing multi-point haptics utilizing simultaneous sensing and actuation are disclosed. In a first configuration, two layers of electrodes are used, including a top layer for haptics near a touch surface of an insulating substrate and a bottom layer for sensing at the bottom surface of the insulating substrate, with the two electrode sets have substantially the same pattern as one another. In a second configuration, a single array of electrodes is used near a touch surface of an insulating substrate and serves as both surface haptic devices and sensing devices.Type: ApplicationFiled: October 19, 2018Publication date: April 25, 2019Inventors: Michael A. Peshkin, James E. Colgate
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Publication number: 20180364864Abstract: Touch interface devices having systems and methods for producing multi-point haptics utilizing simultaneous sensing and actuation, and electronic controllers for actuation thereof are disclosed. In a first configuration, two layers of electrodes are used, including a top layer for haptics near a touch surface of an insulating substrate and a deeper or bottom layer for sensing at a deeper layer or at the bottom surface of the insulating substrate, with the two electrode sets have substantially the same pattern as one another. In a second configuration, a single array of electrodes is used near a touch surface of an insulating substrate and serves as both surface haptic devices and sensing devices.Type: ApplicationFiled: February 20, 2015Publication date: December 20, 2018Applicants: Tanvas Corporation, Northwestern UniversityInventors: Michael F.D. Olley, Michael A. Peshkin, James E. Colgate
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Patent number: 10120447Abstract: Touch interface devices having systems and methods for producing multi-point haptics utilizing simultaneous sensing and actuation are disclosed. In a first configuration, two layers of electrodes are used, including a top layer for haptics near a touch surface of an insulating substrate and a bottom layer for sensing at the bottom surface of the insulating substrate, with the two electrode sets have substantially the same pattern as one another. In a second configuration, a single array of electrodes is used near a touch surface of an insulating substrate and serves as both surface haptic devices and sensing devices.Type: GrantFiled: June 17, 2014Date of Patent: November 6, 2018Assignee: NORTHWESTERN UNIVERSITYInventors: Michael A. Peshkin, James E. Colgate
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Publication number: 20170168572Abstract: Touch interface devices and methods for producing multi-point haptics utilizing simultaneous sensing and actuation are disclosed. In one configuration, one or more electrodes connected to a front surface of a substrate are arranged in a pattern and connected to an electronic controller configured to produce a haptic effect by applying one or more voltages to the electrodes, and measure the locations of one or more touch points by applying one or more voltages to the electrodes. In another configuration the electronic controller is configured to produce a haptic effect by applying positive and/or negative voltages to the electrodes, and measure the locations of one or more touch points by applying positive and/or negative voltages to the electrodes. Also disclosed is a method for using a single set of electrodes on a substrate of a touch interface to simultaneously produce haptic effects on the substrate and measure finger locations relative to the substrate.Type: ApplicationFiled: February 20, 2015Publication date: June 15, 2017Applicants: Tanvas Corporation, Northwestern UniversityInventors: Michael A. Peshkin, James E. Colgate, Michael F.D. Olley
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Publication number: 20160370862Abstract: A touch interface device that produces tactile and audio output comprising a touch surface, an first electrode coupled to the touch surface that receives a first haptic/audio output potential, a second electrode coupled to a low impedance return path to the device, the first and second electrodes being configured such that when both the first and second electrodes are touched by an appendage of a user, a current flows between the first and second electrodes and the appendage, where the current creates an electric field that imparts a controlled electrostatic force at interfaces of the first electrode and the appendage, and wherein the electrostatic force provides tactile feedback to the appendage of the user and causes vibration in the surrounding air that is audible to the user.Type: ApplicationFiled: June 17, 2016Publication date: December 22, 2016Inventors: James E. Colgate, Michael A. Peshkin, Craig Shultz
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Publication number: 20160363998Abstract: A touchscreen includes conductive islands that are capacitively coupled to conductive traces, where they may be used to provide capacitive sensing of the position of one or more fingers in contact with a touchscreen and/or to exert haptic forces on one or more fingers in contact with a touchscreen.Type: ApplicationFiled: June 9, 2016Publication date: December 15, 2016Inventors: James E. Colgate, Michael A. Peshkin
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Publication number: 20160357342Abstract: Touch interface devices having systems and methods for producing multi-point haptics utilizing simultaneous sensing and actuation, and electronic controllers for actuation thereof are disclosed. In a first configuration, two layers of electrodes are used, including a top layer for haptics near a touch surface of an insulating substrate and a deeper or bottom layer for sensing at a deeper layer or at the bottom surface of the insulating substrate, with the two electrode sets have substantially the same pattern as one another. In a second configuration, a single array of electrodes is used near a touch surface of an insulating substrate and serves as both surface haptic devices and sensing devices.Type: ApplicationFiled: February 20, 2015Publication date: December 8, 2016Applicants: Tanvas Corporation, Northwestern UniversityInventors: Michael F.D. Olley, Michael A. Peshkin, James E. Colgate