07548232 is referenced by 143 patents and cites 191 patents.

A haptic feedback touch control used to provide input to a computer. A touch input device includes a planar touch surface that provides position information to a computer based on a location of user contact. The computer can position a cursor in a displayed graphical environment based at least in part on the position information, 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. The actuator can move the touchpad laterally, or a separate surface member can be actuated. A flat E-core actuator, piezoelectric actuator, or other types of actuators can be used to provide forces. The touch input device can include multiple different regions to control different computer functions.

Title
Haptic interface for laptop computers and other portable devices
Application Number
10/919798
Publication Number
7548232 (B2)
Application Date
August 17, 2004
Publication Date
June 16, 2009
Inventor
Louis B Rosenberg
San Jose
CA, US
Bruce M Schena
Menlo Park
CA, US
Erik J Shahoian
San Ramon
CA, US
Agent
Womble Carlyle Sandridge & Rice PLLC
Assignee
Immersion Corporation
CA, US
IPC
G09G 5/00
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