Described and shown is a six degree of freedom physical to electrical converter with capability of tactile feedback, specifically, a human hand operated input controller with the capability of vibration feedback in the handle. Two embodiments, each capable of translating complex three dimensional linear...http://www.google.de/patents/US5589828?utm_source=gb-gplus-sharePatent US5589828 - 6 Degrees of freedom controller with capability of tactile feedback
