Patents by Inventor Christophe Ramstein

Christophe Ramstein 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).

  • Publication number: 20150061703
    Abstract: An electromechanical polymer (EMP) sensor includes (a) a first set of EMP layers provided between a first electrode and a second electrode forming a capacitor, the first set of EMP layers having one or more EMP layers capable of being activated by application of a voltage across the first and second electrodes; and (b) a sensing circuit coupled to the first electrode and the second electrode for detecting a change in capacitance or a change in voltage across the first and second electrodes. The EMP sensor may further include means for disconnecting the second electrode from a ground reference after the pre-determined voltage is applied, such that the sensing circuit senses a change in capacitance. The sensing circuit may be capable of detecting a noise portion of a voltage across the first and second electrode.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 5, 2015
    Applicant: Strategic Polymer Sciences, Inc.
    Inventors: Li Jiang, Lawrence Wang, Matthew Douglas Rogge, Brian Zellers, Christophe Ramstein
  • Publication number: 20150065953
    Abstract: A catheter includes an electromechanical polymer (EMP) actuator disposed in a steerable tip at the distal end of the catheter. When activated, the EMP actuator deflects the steerable tip through an angle between 0 and 270 degrees, thus permitting the operator to steer the steerable tip through the vasculature. The steerable tip also has at least a first relatively stiff region and a second relatively flexible region, and the EMP actuator is provided next to the first relatively stiff region so that the steerable tip may toward the flexible region when activated. In one implementation, an external interface allows a user to select by name one of many sets of control signals, with each set of control signals being signals calibrated for configuring the catheter to mimic a known catheter.
    Type: Application
    Filed: August 30, 2013
    Publication date: March 5, 2015
    Applicant: Strategic Polymer Sciences, Inc.
    Inventors: Richard Ducharme, Mark Levatich, Christophe Ramstein
  • Patent number: 8888763
    Abstract: Disclosed herein are systems and methods for managing how signals, which are sensed on a tool, are presented to an operator of the tool. According to one example of a method for managing signals, the method comprises allowing an operator to manipulate a tool having a plurality of output mechanisms mounted thereon. The method also includes sensing a property of an object located near or adjacent to a distal portion of the tool and processing the sensed property to obtain one or more output signals. Furthermore, the method includes applying the one or more output signals to one or more of the output mechanisms.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: November 18, 2014
    Assignee: Immersion Corporation
    Inventors: Christophe Ramstein, Christopher J. Ullrich, Danny A. Grant
  • Publication number: 20140327531
    Abstract: A haptic tape includes a composite piezoelectric layer connected between a first electrode layer and a second electrode layer. The composite piezoelectric layer has a plurality of piezoelectric rods arranged in a polymer matrix. The haptic tape is configured to be used as a sealant.
    Type: Application
    Filed: July 21, 2014
    Publication date: November 6, 2014
    Inventors: Ali MODARRES, Juan Manuel CRUZ-HERNANDEZ, Danny A. GRANT, Christophe RAMSTEIN
  • Patent number: 8878806
    Abstract: An input/output device includes a touch sensitive layer configured to sense if an object touches the touch sensitive layer and to sense where the touch sensitive layer is contacted, a first electrode layer and second electrode layer, at least a portion of one of the first electrode layer and second electrode layer connected to at least a portion of the touch sensitive layer, and a composite piezoelectric layer connected between the first electrode layer and second electrode layer. The composite piezoelectric layer has a plurality of piezoelectric rods arranged in a polymer matrix. The polymer matrix provides the composite piezoelectric layer with a predetermined property. A drive circuit is configured to apply an alternating voltage to the first electrode layer and second electrode layer in response to the sensed object.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: November 4, 2014
    Assignee: Immersion Corporation
    Inventors: Ali Modarres, Juan Manuel Cruz-Hernandez, Danny A. Grant, Christophe Ramstein
  • Patent number: 8834465
    Abstract: Implementations of modular tools and methods of operating modular tools are described in the present disclosure. A modular tool according to one of several possible embodiments comprises a handle portion and a distal portion. The handle portion is configured to be manipulated by a user. The distal portion is configured to be attached to the handle portion, but is further configured to be removable from the handle portion by the user. Manipulation of the handle portion causes movement of one or more components of the distal portion. The distal portion is further configured to sense one or more parameters and transmit the sensed parameters to the handle portion.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: September 16, 2014
    Assignee: Immersion Corporation
    Inventors: Christophe Ramstein, Christopher J. Ullrich, Anne DeGheest
  • Publication number: 20140191997
    Abstract: A housing for an electronic device allows a haptic feedback response that is localized to a specific area on a back panel of the housing of the electronic device. For example, a user holding the mobile electronic device may directly receive haptic feedback in his/her fingers that are supporting the back side of the mobile electronic device. Those specific areas on the back panel may be locations where the panel material is thinned, or locations where the panel material has been removed and replaced by a suitably selected membrane material having favorable mechanical properties. The membrane material may be introduced as an embossment of a membrane layer. In addition, a force-sensing resistor type material may be used as a replacement material, so as to sense the pressure of a user's finger pressing on the embossed structure at the specific locations to which EMP actuators are bonded.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 10, 2014
    Applicant: Novasentis, Inc.
    Inventors: Li JIANG, Brian ZELLERS, Christophe RAMSTEIN
  • Publication number: 20140191973
    Abstract: Electromechanical polymer (EMP) actuators are used to create haptic effects on a user interface deface, such as a keyboard. The keys of the keyboard may be embossed in a top layer to provide better key definition and to house the EMP actuator. Specifically, an EMP actuator is housed inside an embossed graphic layer that covers a key of the keyboard. Such a keyboard has a significant user interface value. For example, the embossed key provides the tactile effect of the presence of a key with edges, while allowing for the localized control of haptic vibrations. For such applications, an EMP transducer provides high strains, vibrations or both under control of an electric field. Furthermore, the EMP transducer can generate strong vibrations. When the frequency of the vibrations falls within the acoustic range, the EMP transducer can generate audible sound, thereby functioning as an audio speaker.
    Type: Application
    Filed: January 7, 2013
    Publication date: July 10, 2014
    Applicant: STRATEGIC POLYMER SCIENCES, INC.
    Inventors: Brian C. Zellers, Li Jiang, Christophe Ramstein, Stephen Davis, M. Fabrice Domingues Dos Santos
  • Patent number: 8749507
    Abstract: Systems and methods for adaptively interpreting a user's intent based on parameters supplied by a touch-sensitive input device are described. In one of the methods described, a processor is programmed for receiving contact data from an input device; determining whether to output a haptic effect based on the contact data; and outputting the haptic effect based on the contact data.
    Type: Grant
    Filed: April 6, 2012
    Date of Patent: June 10, 2014
    Assignee: Immersion Corporation
    Inventors: Henry DaCosta, Christophe Ramstein, Danny Grant
  • Publication number: 20140140551
    Abstract: A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology and audio speakers.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: STRATEGIC POLYMER SCIENCES, INC.
    Inventor: Christophe Ramstein
  • Publication number: 20140139436
    Abstract: A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology, keyboard, braille display, and audio speakers.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: STRATEGIC POLYMER SCIENCES, INC.
    Inventors: Christophe Ramstein, Li Jiang, Brian C. Zellers, Shihai Zhang, Richard Ducharme, Stephen Davis
  • Publication number: 20140139329
    Abstract: A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology and audio speakers.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: STRATEGIC POLYMER SCIENCES, INC.
    Inventors: Christophe Ramstein, Li Jiang, Brian C. Zellers, Shihai Zhang
  • Publication number: 20140139328
    Abstract: A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology and audio speakers.
    Type: Application
    Filed: November 21, 2012
    Publication date: May 22, 2014
    Applicant: Strategic Polymer Sciences, Inc.
    Inventors: Brian C. Zellers, Shihai Zhang, Christophe Ramstein, Raj P. Pathak
  • Patent number: 8652046
    Abstract: A method and system for performing minimally invasive tissue examination with a computer-assisted hand tool. The computer-assisted hand tool is moved into contact with the tissue under examination. An indication is received from a first sensor in the computer-assisted hand tool of each feature detected in a time interval during movement of the hand tool in contact with the tissue under examination. Each feature detected in the preset time interval is processed to determine a haptic feedback to provide to the user. A haptic feedback is generated and provided to the user via an actuator that is responsive to at least one feature detected in the time interval.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: February 18, 2014
    Assignee: Immersion Corporation
    Inventors: Christophe Ramstein, Christopher J. Ullrich, Juan Manuel Cruz-Hernandez, Danny A. Grant
  • Publication number: 20140035735
    Abstract: A localized multimodal haptic system includes one or more electromechanical polymer (EMP) transducers, each including an EMP layer, such as an electrostrictive polymer active layer. In some applications the EMP transducer may perform an actuator function or a sensor function, or both. The EMP polymer layer has a first surface and a second surface on which one or more electrodes are provided. The EMP layer of the EMP actuator may be 5 microns thick or less. The EMP transducers may provide local haptic response to a local a stimulus. In one application, a touch sensor may be associated with each EMP transducer, such that the haptic event at the touch sensor may be responded to by activating only the associated EMP transducer. Furthermore, the EMP transducer may act as its own touch sensor. A variety of haptic responses may be made available. The EMP transducers may be used in various other applications, such as providing complex surface morphology and audio speakers.
    Type: Application
    Filed: November 21, 2012
    Publication date: February 6, 2014
    Applicant: STRATEGIC POLYMER SCIENCES, INC.
    Inventors: Brian C. Zellers, Shihai Zhang, Christophe Ramstein, Li Jiang, Raj P. Pathak
  • Publication number: 20130335454
    Abstract: An electronic device having a user interface device that has a flexible surface, a haptic output device operatively coupled to the flexible surface and configured to cause a deformation of the flexible surface, and a controller in signal communication with the haptic output device. The controller is configured to trigger the haptic output device to cause the deformation of the flexible surface based on a simulated physical behavior of a virtual element represented on the user interface.
    Type: Application
    Filed: June 13, 2012
    Publication date: December 19, 2013
    Applicant: IMMERSION CORPORATION
    Inventors: David M. Birnbaum, Li Jiang, Juan Manuel Cruz-Hernandez, Ali Modarres, Christophe Ramstein, Danny A. Grant
  • Publication number: 20130335354
    Abstract: An inertial actuator includes an electro-active polymer EAP actuator, a substrate, and one or more mass elements. The EAP actuator includes at least one EAP layer located between a pair of driving electrodes. The EAP actuator may include a multilayer stack of alternating EAP layers and electrode layers. The EAP actuator is attached to the substrate (e.g., a flexible polymer substrate), which may be held under tension by attachment points at the periphery of the substrate, at the ends of a beam-type substrate, or the edges of a membrane-type actuator. The EMP actuator induces vibrations in the substrate. One or more mass elements (e.g., metal films) may also be supported by the substrate to enhance the resonator response.
    Type: Application
    Filed: June 13, 2013
    Publication date: December 19, 2013
    Inventors: Brian C. Zellers, Thomas Tremper, Raymond Orchard, JR., Christophe Ramstein
  • Publication number: 20130253483
    Abstract: Disclosed herein are systems and methods for managing how signals, which are sensed on a tool, are presented to an operator of the tool. According to one example of a method for managing signals, the method comprises allowing an operator to manipulate a tool having a plurality of output mechanisms mounted thereon. The method also includes sensing a property of an object located near or adjacent to a distal portion of the tool and processing the sensed property to obtain one or more output signals. Furthermore, the method includes applying the one or more output signals to one or more of the output mechanisms.
    Type: Application
    Filed: May 23, 2013
    Publication date: September 26, 2013
    Applicant: Immersion Corporation
    Inventors: Christophe Ramstein, Christopher J. Ullrich, Danny A. Grant
  • Patent number: 8390594
    Abstract: Human-computer interface devices are described in the present disclosure. In one embodiment, among several embodiments, a human-computer interface includes a display device configured to visually display images to a user and a touch sensitive device configured to sense contact with the user. Furthermore, the human-computer interface includes a composite piezoelectric layer positioned between the display device and the touch sensitive device. The composite piezoelectric layer is configured to provide haptic feedback to the user.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: March 5, 2013
    Assignee: Immersion Corporation
    Inventors: Ali Modarres, Juan Manuel Cruz-Hernandez, Danny A. Grant, Christophe Ramstein
  • Publication number: 20120299857
    Abstract: A planar touch control is used to provide input to a computer and haptic feedback is provided thereto. A touch control includes a touch input device with a planar touch surface that inputs a position signal to a processor associated with the computer based on a location of user implemented contact on the touch surface. The computer can position or modify a cursor or image in a displayed graphical environment based at least in part on the position signal, or perform a different function. At least one actuator is also coupled to the touch input device and outputs a force to provide a haptic sensation to the user via the touch surface.
    Type: Application
    Filed: July 30, 2012
    Publication date: November 29, 2012
    Applicant: Immersion Corporation
    Inventors: Danny A. Grant, Pedro Gregorio, Robert W. Heubel, Christophe Ramstein