06580417 is referenced by 40 patents and cites 12 patents.

A method and apparatus for controlling and providing force feedback using an interface device manipulated by a user. A microprocessor is provided local to the interface device and reads sensor data from sensors that describes the position and/or other information about a user object moved by the user, such as a joystick. The microprocessor controls actuators to provide forces on the user object and provides the sensor data to a host computer that is coupled to the interface device. The host computer sends high level host commands to the local microprocessor, and the microprocessor independently implements a local reflex process based on the high level command to provide force values to the actuators using sensor data and other parameters. A provided host command protocol includes a variety of different types of host commands and associated command parameters. By providing a relatively small set of high level host commands and parameters which are translated into a panoply of forces, the protocol further shifts the computational burden from the host computer to the local microprocessor and allows a software developer to easily create force feedback applications.

Title
Tactile feedback device providing tactile sensations from host commands
Application Number
9/815872
Publication Number
6580417 (B2)
Application Date
March 22, 2001
Publication Date
June 17, 2003
Inventor
Mike D Levin
Sunnyvale
CA, US
Adam C Braun
Sunnyvale
CA, US
Louis B Rosenberg
Pleasanton
CA, US
Agent
Kilpatrick Stockton
US
Assignee
Immersion Corporation
CA, US
IPC
G06F 3/033
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