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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0275120 (1994-07-14) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 287 인용 특허 : 0 |
An apparatus for interfacing the movement of a shaft with a computer includes a support, a gimbal mechanism having two degrees of freedom, and three electromechanical transducers. When a shaft is engaged with the gimbal mechanism, it can move with three degrees of freedom in a spherical coordinate s
An apparatus for interfacing the movement of a shaft with a computer includes a support, a gimbal mechanism having two degrees of freedom, and three electromechanical transducers. When a shaft is engaged with the gimbal mechanism, it can move with three degrees of freedom in a spherical coordinate space, where each degree of freedom is sensed by one of the three transducers. A fourth transducer can be used to sense rotation of the shaft around an axis. The method includes the steps of defining an origin in 3-dimensional space, physically constraining a shaft in the 3-dimensional space such that a portion of the shaft always intersects the origin and such that a portion of the shaft extending beyond the origin defines a radius in a spherical coordinate system, transducing a first electrical signal related to a first angular coordinate of the radius with a first transducer, transducing a second electrical signal related to a second angular coordinate with a second transducer, transducing a third electrical signal related to the length of the radius with a third transducer, and coupling the transducers to a computer.
A control input device for interfacing the motion of an elongated cylindrical mechanical object with a digital processing system comprising: a support; a gimbal mechanism including: a) a U shaped base portion having a base and a pair of substantially parallel legs extending therefrom, wherein said b
A control input device for interfacing the motion of an elongated cylindrical mechanical object with a digital processing system comprising: a support; a gimbal mechanism including: a) a U shaped base portion having a base and a pair of substantially parallel legs extending therefrom, wherein said base of said U shaped base portion is rotatably coupled to said support; and b) an elongated object receiving portion provided with an aperture extending therethrough which defines an object axis for an elongated cylindrical object, where said receiving portion is at least partially disposed between said legs of said U shaped base portion and is pivotally coupled thereto, said receiving portion further including a translation interface and a rotation interface, both disposed proximate to said object axis such that they engage said elongated cylindrical object when it is engaged with said aperture; wherein said base portion rotates around a first axis and said object receiving portion rotates around a second axis substantially perpendicular to said first axis, and wherein said object axis defines a radius in a spherical coordinate system having an origin at an intersection of said first axis and said second axis; a first input transducer arranged to transduce motion between said support and said U shaped base portion to produce a first input electrical signal representative of a sensed position of said U shaped base portion relative to said support; a second input transducer arranged to transduce motion between said U shaped base portion and said object receiving portion to produce a second input electrical signal representative of a sensed position of said object receiving portion relative to said U shaped base portion; a third input transducer coupled to said translation interface to produce a third input electrical signal representative of a sensed translation of said elongated cylindrical object relative to said object receiving portion without causing substantial translational motion of said object receiving portion with respect to said support; and a fourth input transducer coupled to said rotation interface and said object to produce a fourth input electrical signal representative of a sensed rotation of said elongated cylindrical object relative to said object receiving portion without causing substantial rotational motion of said object receiving portion with respect to said support.
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