1
Chester L Schuler, Seth M Haberman: Method and apparatus for tactilely responsive user interface. Immersion Corporation, James R Riegel, March 30, 1999: US05889670 (263 worldwide citation)

A method and apparatus implementing a user interface device, such as a mouse or trackball, having electronically controllable tactile responsiveness which is flexibly programmable. A user interface device effects positioning of a cursor within a limited area, such as on a display screen, with limits ...


2
Schuler Chester L, Haberman Seth M: Method and apparatus for tactilely responsive user interface. Lex Computer & Management, November 11, 1998: EP0876639-A1

A method and apparatus implementing a user interface device, such as a mouse or trackball, having electronically controllable tactile responsiveness which is flexibly programmable. The interface device includes at least two sets of wheels that move as the interface device is actuated. A servo motor ...


3
Schuler Chester L, Haberman Seth M: Method and apparatus for tactilely responsive user interface. Lex Computer And Management Corporation, MICHAELIS Brian, July 17, 1997: WO/1997/025657

A method and apparatus implementing a user interface device, such as a mouse or trackball, having electronically controllable tactile responsiveness which is flexibly programmable. The interface device includes at least two sets of wheels that move as the interface device is actuated. A servo motor ...