1
Aaron F Bobick, W Thatcher Ulrich, J Bryan Lewis, Eliot Shepard, Peter Lehman: Interactive exercise apparatus. Tectrix Fitness Equipment, Testa Hurwitz & Thibeault, July 28, 1998: US05785630 (312 worldwide citation)

An interactive exercise apparatus engages a user's mind and body. The apparatus comprises an exercise mechanism, a steering mechanism, and a control mechanism for manipulation by the user to achieve exercise, to indicate a direction of motion, and to interact with virtual objects in a simulated envi ...


2
Aaron F Bobick, W Thatcher Ulrich, J Bryan Lewis, Eliot Shepard, Peter Lehman: Interactive exercise apparatus. Tectrix Fitness Equipment, Testa Hurwitz & Thibeault, April 6, 1999: US05890995 (206 worldwide citation)

An interactive exercise apparatus engages a user's mind and body. The apparatus comprises an exercise mechanism, a steering mechanism, and a control mechanism for manipulation by the user to achieve exercise, to indicate a direction of motion, and to interact with virtual objects in a simulated envi ...