05739811 is referenced by 385 patents and cites 138 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 an object grasped and moved by the user, such as a joystick. The microprocessor provides the sensor data to a host computer that is coupled to the interface device by a communication bus that preferably includes a serial interface. In a "host-controlled" embodiment, the host computer calculates force values using the sensor data and other parameters of a host application program and sends the force values to the local microprocessor, which directly provides the force values to actuators to apply forces to the user object. In a "reflex" embodiment, the host computer sends high level supervisory commands to the local microprocessor, and the microprocessor independently implements a local process based on the high level command for reading sensor data and providing force values to the actuators using sensor data and other parameters.

Title
Method and apparatus for controlling human-computer interface systems providing force feedback
Application Number
489068
Publication Number
5739811
Application Date
September 27, 1995
Publication Date
April 14, 1998
Inventor
Bernard G Jackson
Atherton
CA, US
Louis B Rosenberg
Pleasanton
CA, US
Agent
Hickman Beyer & Weaver
Assignee
Immersion Human Interface Corporation
CA, US
IPC
G09G 5/08
G06F 3/033
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