US 6,982,696 B1 | ||
Moving magnet actuator for providing haptic feedback | ||
Erik J. Shahoian, San Ramon, Calif. (US) | ||
Assigned to Immersion Corporation, San Jose, Calif. (US) | ||
Filed on Jun. 30, 2000, as Appl. No. 9/608,130. | ||
Claims priority of provisional application 60/142155, filed on Jul. 01, 1999. | ||
Int. Cl. G09G 5/00 (2006.01) |
U.S. Cl. 345—156 | 20 Claims |
1. A computer input device comprising an actuator, which comprises: a core member, having a central projection; a coil wrapped around said central projection; a magnet positioned so as to provide a gap between said core member and said magnet and operable to move in a degree of freedom relative to said core member; and an elastic material disposed in said gap and configured to limit a range of motion of said magnet in said degree of freedom, wherein; said core member comprises a first curved surface; said magnet comprises a second curved surface; and said elastic material is disposed in a gap formed between said first curved surface and said second curved surface. |