초록 ▼

A force feedback interface device is coupled to a host computer that displays a graphical environment, the device including a user manipulatable object physically contacted and moveable by a user. A sensor detects a position of the user object and provides a sensor signal to the host computer, where

A force feedback interface device is coupled to a host computer that displays a graphical environment, the device including a user manipulatable object physically contacted and moveable by a user. A sensor detects a position of the user object and provides a sensor signal to the host computer, where the sensor signal includes information representative of the position of the user object. An actuator is coupled to the device or user object and outputs a force on the user manipulatable object or a housing of the device. The actuator includes a magnet and a grounded coil, where the magnet moves approximately within a plane with respect to the coil, and wherein a current is provided in the coil to generate the force. Other embodiments provide a magnet that moves in a linear degree of freedom within a coil housing, or provide an at least partially spherical magnet providing rotary degrees of freedom to a user manipulatable object coupled to the magnet. One embodiment includes a planar frame support mechanism.

대표청구항 ▼

A force feedback interface device is coupled to a host computer that displays a graphical environment, the device including a user manipulatable object physically contacted and moveable by a user. A sensor detects a position of the user object and provides a sensor signal to the host computer, where

A force feedback interface device is coupled to a host computer that displays a graphical environment, the device including a user manipulatable object physically contacted and moveable by a user. A sensor detects a position of the user object and provides a sensor signal to the host computer, where the sensor signal includes information representative of the position of the user object. An actuator is coupled to the device or user object and outputs a force on the user manipulatable object or a housing of the device. The actuator includes a magnet and a grounded coil, where the magnet moves approximately within a plane with respect to the coil, and wherein a current is provided in the coil to generate the force. Other embodiments provide a magnet that moves in a linear degree of freedom within a coil housing, or provide an at least partially spherical magnet providing rotary degrees of freedom to a user manipulatable object coupled to the magnet. One embodiment includes a planar frame support mechanism. modulator comprises an array of pixels such as RGB pixels. A retarder array is disposed on the front of the spatial light modulator. The array comprises first stripes and second stripes which extend vertically and alternate which each other horizontally. The first and second stripes supply light from the modulator to an observer with different, preferably orthogonal, polarizations. Each of the stripes has a width which is greater than the horizontal pitch of the pixels. In a preferred embodiment, a lenticular screen is disposed in front of the retarder array. The lenticules extend vertically and are spaced horizontally with a pitch which is substantially equal to the pitch of the pixels. erein said slot does not extend through said printed circuit board along a lengthwise direction thereof. 6. The slot antenna as claimed in claim 3, wherein said slot extends along a length direction of said printed circuit board on said plane. 7. The slot antenna as claimed in claim 3, wherein the signal circuit and the ground circuit are applied on two opposite sides of the slot. 8. The slot antenna as claimed in claim 3, wherein said slot generally defines two different distances with regard to the two corresponding opposite side edges by two sides thereof, while at least a portion of said slot defines the same distance with regard to two opposite edges of the printed circuit board by said two sides wherein at least one of said two opposite edges is formed by said at least one cut-off. 9. A method of adjusting directionality and obtaining better gain values of radiation patterns of a slot antenna, comprising the steps of: providing a printed circuit board defining a direction on a plane thereon; forming a closed type slot in said printed circuit board along said direction, said closed type slot extending through two opposite surfaces of said printed circuit board while peripherally restricted in the plane defined by said printed circuit board; attaching a coaxial feeder cable to the printed circuit board with an inner conductor and an outer shield thereof respectively connected to signal and ground circuits of the printed circuit board around said slot; and forming at least one properly dimensioned opening at one selected position on the printed circuit board to comply with either a desired directionality or better gain values of the radiation patterns of said slot antenna. 10. The method as claimed in claim 9, wherein said opening communicates with an exterior in any direction on said plane.