Patents by Inventor Dean C. Chang

Dean C. Chang 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).

  • Patent number: 7843424
    Abstract: A design interface tool for designing force sensations for use with a host computer and force feedback interface device. A force feedback device is connected to a host computer that displays the interface tool. Input from a user is received in the interface to select a type of force sensation to be commanded by a host computer and output by a force feedback interface device. Input, such as parameters, is then received from the user which designs and defines physical characteristics of the selected force sensation. A graphical representation of the characterized force sensation is displayed on the host computer which provides a visual demonstration of a feel of the characterized force sensation so that the user can view an effect of parameters on said force sensation.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: November 30, 2010
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Dean C. Chang
  • Publication number: 20100271295
    Abstract: A force feedback system provides components for use in a force feedback system including a host computer and a force feedback interface device. An architecture for a host computer allows multi-tasking application programs to interface with the force feedback device without conflicts. One embodiment of a force feedback device provides both relative position reporting and absolute position reporting to allow great flexibility. A different device embodiment provides relative position reporting device allowing maximum compatibility with existing software. Information such as ballistic parameters and screen size sent from the host to the force feedback device allow accurate mouse positions and cursor positions to be determined in the force feedback environment. Force feedback effects and structures are further described, such as events and enclosures.
    Type: Application
    Filed: August 14, 2006
    Publication date: October 28, 2010
    Applicant: Immersion Corporation
    Inventors: Adam C. Braun, Jonathan L. Beamer, Louis B. Rosenberg, Dean C. Chang
  • Patent number: 7779166
    Abstract: Embodiments of the invention relate to methods and systems for providing customized “haptic messaging” to users of handheld communication devices in a variety of applications. In one embodiment, businesses and organizations may each be associated with a distinct haptic logo and include their haptic logos in various messages sent to the handheld communication devices of their customers. In another embodiment, haptically-enabled avatars can be used in a chat session between users of handheld communication devices.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: August 17, 2010
    Assignee: Immersion Corporation
    Inventors: Danny A. Grant, Jeffrey Eid, Shoichi Endo, Erik J. Shahoian, Dean C. Chang
  • Publication number: 20100201502
    Abstract: A design interface tool for designing force sensations for use with a host computer and haptic feedback interface device. A haptic feedback device communicates with a host computer that displays the interface tool. The user selects and characterizes force sensations using the interface tool, and a graphical representation of the characterized force sensation is displayed. The characterized force sensation is output to a user manipulatable object of the force feedback device so that the user can feel the designed force sensation The user can include multiple force sensations in a compound force sensation, where the compound sensation is graphically displayed to indicate the relative start times and duration of each of the force sensations. The user can also associate a sound with the force sensation, such that the sound is output in conjunction with the output of the force sensation.
    Type: Application
    Filed: April 19, 2010
    Publication date: August 12, 2010
    Applicant: Immersion Corporation
    Inventors: Dean C. Chang, Louis B. Rosenberg, Jeffrey R. Mallett
  • Patent number: 7701438
    Abstract: A design interface tool for designing force sensations for use with a host computer and haptic feedback interface device. A haptic feedback device communicates with a host computer that displays the interface tool. The user selects and characterizes force sensations using the interface tool, and a graphical representation of the characterized force sensation is displayed. The characterized force sensation is output to a user manipulatable object of the force feedback device so that the user can feel the designed force sensation The user can include multiple force sensations in a compound force sensation, where the compound sensation is graphically displayed to indicate the relative start times and duration of each of the force sensations. The user can also associate a sound with the force sensation, such that the sound is output in conjunction with the output of the force sensation.
    Type: Grant
    Filed: June 20, 2006
    Date of Patent: April 20, 2010
    Assignee: Immersion Corporation
    Inventors: Dean C. Chang, Louis B. Rosenberg, Jeffrey R. Mallett
  • Patent number: 7696978
    Abstract: An interface device and method for providing enhanced cursor control with force feedback. A force feedback interface device includes a manipulandum, such as a mouse, that is moveable in a local workspace. The device is coupled to a host computer that displays a cursor in a graphical environment, such as a GUI, on a display screen. An interior region and a border region in the local workspace is defined. One mapping of device movement to cursor movement is used for the interior region, and a different mapping is used for the border region. Mapping methods include ballistics, absolute, linear, rate control, and variable absolute. Rate control embodiments can be single axis or dual axis. In one embodiment, when the mouse moves from the interior region to the border region, the mapping providing the greater cursor velocity is used to better conserve device workspace in the direction of travel and to decrease any sense of mapping mode change to the user.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: April 13, 2010
    Assignee: Immersion Corporation
    Inventors: Jeffrey R. Mallett, Dean C. Chang, Louis B. Rosenberg, Adam C. Braun, Kenneth M. Martin, Jonathan L. Beamer
  • Publication number: 20090289779
    Abstract: A force feedback system provides components for use in a force feedback system including a host computer and a force feedback interface device. An architecture for a host computer allows multi-tasking application programs to interface with the force feedback device without conflicts. One embodiment of a force feedback device provides both relative position reporting and absolute position reporting to allow great flexibility. A different device embodiment provides relative position reporting device allowing maximum compatibility with existing software. Information such as ballistic parameters and screen size sent from the host to the force feedback device allow accurate mouse positions and graphical object positions to be determined in the force feedback environment. Force feedback effects and structures are further described, such as events and enclosures.
    Type: Application
    Filed: June 28, 2007
    Publication date: November 26, 2009
    Applicant: Immersion Corporation
    Inventors: Adam C. Braun, Jonathan L. Beamer, Dean C. Chang
  • Patent number: 7557794
    Abstract: A force feedback interface and method providing a selective disturbance filter for providing selective reduction or elimination of displayed disturbances associated with output force sensations. A force feedback interface device is connected to a host computer that displays a graphical environment. The interface device includes a user manipulatable object, a sensor for detecting movement of the user object, and an actuator to apply output forces to the user object. A microprocessor outputs controlling force signals to the actuator, receives sensor signals from the sensors and reports locative data to the host computer indicative of the movement of the user object. The host computer updates a position of a displayed user-controlled graphical object in the graphical environment based on the reported data.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: July 7, 2009
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Dean C. Chang
  • Patent number: 7493365
    Abstract: A chat interface allowing a user to exchange haptic chat messages with other users in a chat session over a computer network. A chat interface can be displayed by a local computer and receives input data from a user of the local computer, such as text characters or speech input. The input data provides an outgoing chat message that can include sent force information. The outgoing chat message is sent to a remote computer that is connected to the local host computer via a computer network. The remote computer can display a chat interface and output a haptic sensation to a user of the remote computer based at least in part on the force information in the outgoing chat message. An incoming message from the remote computer can also be received at the chat interface, which may also include received force information. The incoming chat message is displayed on a display device to the user of the local computer.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: February 17, 2009
    Assignee: Immersion Corporation
    Inventors: Evan F. Wies, Dean C. Chang, Michael P. Ruf
  • Publication number: 20090021473
    Abstract: Embodiments of the invention relate to methods and systems for providing customized “haptic messaging” to users of handheld communication devices in a variety of applications. In one embodiment, a method of using haptic effects to relate location information includes: receiving an input signal associated with a position of a handheld communication device (100); determining the position of the handheld communication device (100) relative to a predetermined location; and providing a haptic effect associated with a distance between the position of the handheld communication device (100) and the predetermined location. In another embodiment, a handheld communication device (100) can be used as a two-way haptic remote control.
    Type: Application
    Filed: December 8, 2003
    Publication date: January 22, 2009
    Inventors: Danny A. Grant, Jeffrey Eld, Shoichi Endo, Erik J. Shahoian, Dean C. Chang
  • Publication number: 20080266066
    Abstract: A force feedback system provides components for use in a force feedback system including a host computer and a force feedback interface device. An architecture for a host computer allows multi-tasking application programs to interface with the force feedback device without conflicts. One embodiment of a force feedback device provides both relative position reporting and absolute position reporting to allow great flexibility. A different device embodiment provides relative position reporting device allowing maximum compatibility with existing software. Information such as ballistic parameters and screen size sent from the host to the force feedback device allow accurate mouse positions and cursor positions to be determined in the force feedback environment. Force feedback effects and structures are further described, such as events and enclosures.
    Type: Application
    Filed: November 2, 2007
    Publication date: October 30, 2008
    Applicant: Immersion Corporation
    Inventors: Adam C. Braun, Jonathan L. Beamer, Louis B. Rosenberg, Dean C. Chang
  • Publication number: 20080133648
    Abstract: Embodiments of the invention relate to methods and systems for providing customized “haptic messaging” to users of handheld communication devices in a variety of applications. In one embodiment, a method of providing haptic messaging to a hand communication device includes: receiving an input signal associated with an event; determining a source of the event and selecting the control signal based on the determination; and outputting a control signal to an actuator coupled to the hand communication device. The control signal is configured to cause the actuator to output a haptic effect associated with the reminder event. An event in the above may be a reminder event or a status event.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 5, 2008
    Applicant: Immersion Corporation
    Inventors: Danny A. Grant, Jeffrey Eid, Shoichi Endo, Erik J. Shahoian, Dean C. Chang
  • Patent number: 7299321
    Abstract: Methods and apparatus for efficient management of memory and force output in a force feedback system including a host computer and a force feedback device. A representation of device memory is maintained on the host computer to allow the host computer knowledge and control over storage and force effects in the device memory. A host cache for force effects is provided to allow almost unlimited numbers of force effects to be created for the device, where any force effects not able to fit in device memory are stored in the host cache. Other aspects of the invention include a playlist stored on the device of force effects being played by the device, and management of force output using relatively small, discrete time intervals.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 20, 2007
    Inventors: Adam C. Braun, Jonathan L. Beamer, Dean C. Chang
  • Patent number: 7168042
    Abstract: Force effects for a graphical user interface of a computer are provided based on user preference information, which indicates the types of graphical objects in the graphical user interface which are to have force effects associated with them, and at least one particular force effect assigned to each of those types of graphical objects. An output of a force sensation by a haptic feedback device to the user is based on those assigned force effects and occurs when a displayed cursor controlled by a user interacts with a graphical object having one of the types. An architecture for a host computer allowing multi-tasking application programs to interface with a feedback device is also disclosed.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: January 23, 2007
    Assignee: Immersion Corporation
    Inventors: Adam C. Braun, Jonathan L. Beamer, Louis B. Rosenberg, Dean C. Chang
  • Patent number: 7159008
    Abstract: A chat interface allowing a user to exchange haptic chat messages with other users in a chat session over a computer network. A chat interface can be displayed by a local computer and receives input data from a user of the local computer, such as text characters or speech input. The input data provides an outgoing chat message that can include sent force information. The outgoing chat message is sent to a remote computer that is connected to the local host computer via a computer network. The remote computer can display a chat interface and output a haptic sensation to a user of the remote computer based at least in part on the force information in the outgoing chat message. An incoming message from the remote computer can also be received at the chat interface, which may also include received force information. The incoming chat message is displayed on a display device to the user of the local computer.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: January 2, 2007
    Assignee: Immersion Corporation
    Inventors: Evan F. Wies, Dean C. Chang, Michael P. Ruf
  • Patent number: 7131073
    Abstract: A method and apparatus for providing a click surface in a graphical environment, such as a graphical user interface, implemented on a host computer for use with a force feedback interface device. A displayed cursor is controlled by a user-moveable user object, such as a mouse, of the interface device. A click surface is displayed with an associated graphical object, such as a graphical button or an edge of a window, icon, or other object. When the click surface is contacted by the cursor, a force is output opposing movement of the user object in a direction into the click surface and into the graphical object. When the user object has moved to or past a trigger position past the contact with the click surface, a command gesture signal is provided to the host computer indicating that the graphical object has been selected as if a physical input device on the user object, such as a button, has been activated by the user.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: October 31, 2006
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Dean C. Chang
  • Patent number: 7091948
    Abstract: A design interface tool for designing force sensations for use with a host computer and haptic feedback interface device. A haptic feedback device communicates with a host computer that displays the interface tool. The user selects and characterizes force sensations using the interface tool, and a graphical representation of the characterized force sensation is displayed. The characterized force sensation is output to a user manipulatable object of the force feedback device so that the user can feel the designed force sensation The user can include multiple force sensations in a compound force sensation, where the compound sensation is graphically displayed to indicate the relative start times and duration of each of the force sensations. The user can also associate a sound with the force sensation, such that the sound is output in conjunction with the output of the force sensation.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: August 15, 2006
    Assignee: Immersion Corporation
    Inventors: Dean C. Chang, Louis B. Rosenberg, Jeffrey R. Mallett
  • Patent number: 7039866
    Abstract: A method and apparatus for providing dynamic force sensations for use with a force feedback interface device. A force feedback interface device is connected to a host computer that implements a graphical environment. The host sends commands and command parameters to the interface device to initiate and characterize dynamic force sensations output on a user manipulatable object, such as a joystick. The interface device can include a local microprocessor for implementing force sensations by controlling actuators and reading sensors according to the host commands. A dynamic force routine can control the dynamic force sensations by implementing a simulated physical system including a simulated mass capable of motion independent of the user object. The physical system provides forces on the user object influenced by motion of both the user object and the simulated mass.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: May 2, 2006
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Dean C. Chang
  • Patent number: 7027032
    Abstract: A design interface tool for designing force sensations for use with a host computer and force feedback interface device. A force feedback device is connected to a host computer that displays the interface tool. Input from a user is received in the interface to select a type of force sensation to be commanded by a host computer and output by a force feedback interface device. Input, such as parameters, is then received from the user which designs and defines physical characteristics of the selected force sensation. A graphical representation of the characterized force sensation is displayed on the host computer which provides a visual demonstration of a feel of the characterized force sensation so that the user can view an effect of parameters on said force sensation.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: April 11, 2006
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Dean C. Chang
  • Patent number: 6894678
    Abstract: A mouse interface device and method for providing enhanced cursor control and indexing cursor control with force feedback. A force feedback interface device includes a manipulandum, such as a mouse, that is moveable in a local workspace. The device is coupled to a host computer that displays a cursor in a graphical environment, such as a GUI, on a display screen. A cursor position in the display frame is reported to the host computer derived from a reference position of the mouse in the local frame, and the host displays the cursor; for example, the cursor position may be scaled by a ballistics algorithm based on mouse velocity to allow fine positioning or coarse motion of the cursor. A force is output on the mouse based on interactions in the GUI, the force being determined based on mouse reference data or cursor ballistic data, depending on the type of force, to reduce distortion between visual and force outputs. Assistive forces can alternatively be output to achieve the enhanced cursor control.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: May 17, 2005
    Assignee: Immersion Corporation
    Inventors: Louis B. Rosenberg, Jonathan L. Beamer, Adam C. Braun, Dean C. Chang