1
David Bailey, Danny Grant, Alex Jasso, Ken Martin, Erik Shahoian, Kollin Tierling, Steven Vassallo: Haptic feedback using rotary harmonic moving mass. Immersion Corporation, Thelen Reid & Priest, David B Ritchie, January 9, 2007: US07161580 (111 worldwide citation)

A haptic device comprises an actuator and a mass. The actuator has a shaft. The actuator is elastically coupled to the mass and/or a base.


2
Danny Grant: Method and apparatus for providing haptic feedback having a position-based component and a predetermined time-based component. Immersion Corporation, Thelen Reid Brown Raysman & Steiner, October 16, 2007: US07283120 (101 worldwide citation)

A manipulandum includes a sensor and an actuator. The sensor is configured to output a position signal when the manipulandum is moved from the first position to the second position. Additionally, the actuator is configured to output haptic feedback having a position-based component and a predetermin ...


3
Juan Manuel Cruz Hernandez, Danny Grant, Vincent Hayward: Haptic devices having multiple operational modes including at least one resonant mode. Immersion Corporation, Thelen Reid Brown Raysman & Steiner, May 6, 2008: US07369115 (95 worldwide citation)

An apparatus comprises a signal source, a driver and an electro-mechanical transducer. The signal source is configured to output a haptic feedback signal. The driver is configured to receive the haptic feedback signal and output a drive signal. The electro-mechanical transducer is configured to rece ...


4
Henry DaCosta, Christophe Ramstein, Danny Grant: Systems and methods for adaptive interpretation of input from a touch-sensitive input device. Immersion Corporation, Kilpatrick Townsend & Stockton, April 24, 2012: US08164573 (82 worldwide citation)

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 receives a pressure signal indicating a pressure from an input device, such as a touchpad, compares the pseudo pr ...


5
Danny Grant: Hierarchical methods for generating force feedback effects. Immersion Corporation, Thelen Reid Brown Raysman & Steiner, October 9, 2007: US07280095 (70 worldwide citation)

Embodiments of the invention relate to a hierarchical method for generating force feedback effects. In one embodiment, a method comprises receiving a first force contribution associated with a first (e.g., previous) position of a manipulandum; determining a second force contribution associated with ...


6
Louis B Rosenberg, Matthew Mather, Danny Grant, Christophe Ramstein: Controlling haptic feedback for enhancing navigation in a graphical environment. Immersion Corporation, Kilpatrick Stockton, June 15, 2004: US06750877 (60 worldwide citation)

Method and apparatus for controlling haptic feedback to enhance navigation of a cursor or other controlled displayed object in a graphical environment. An interface device is capable of communicating with a computer running an application program and generating a graphical environment includes an ac ...


7
Christopher J Ullrich, Danny Grant, Victor Aaron Viegas, Juan Manuel Cruz Hernandez: Automatic fitting of haptic effects. Immersion Corporation, Miles & Stockbridge P C, June 17, 2014: US08754757 (45 worldwide citation)

A system is provided that automatically generates one or more haptic effects from source data, such as audio source data. The system fits the one or more haptic effects to the source data by analyzing the source data and identifying one or more haptic effects that are the most similar to the source ...


8
Vincent Hayward, Danny Grant: Deformable structural arrangement. McGill University, Swabey Ogilvy Renault, March 17, 1998: US05727391 (35 worldwide citation)

An actuator develops a displacement from a force; the actuator employs active tension elements which comprise a fiber or fibers which shorten under activation, for example, shape memory alloy fibers; the fiber or fibers are entrained between opposed, spaced apart support members, typically a stack o ...


9
Christopher J Ullrich, Danny Grant, Victor Aaron Viegas, Juan Manuel Cruz Hernandez: Automatic fitting of haptic effects. Immersion Corporation, Miles & Stockbridge P C, June 17, 2014: US08754758 (28 worldwide citation)

A system is provided that automatically generates one or more haptic effects from source data, such as audio source data. The system fits the one or more haptic effects to the source data by analyzing the source data and identifying one or more haptic effects that are the most similar to the source ...


10
Vincent Levesque, Ali Modarres, Neil Olien, Danny Grant, Erin Ramsay, David Birnbaum, Amaya Weddle: Systems and methods for perceptual normalization of haptic effects. Immersion Corporation, Kilpatrick Townsend & Stockton, August 8, 2017: US09729730 (10 worldwide citation)

Systems and methods for perceptual normalization of haptic effects are disclosed. One system may include a first sensor configured to detect a user interaction with a touch surface and transmit a first sensor signal associated with the user interaction; a second sensor configured to detect a feature ...