Pointing device
First Claim
1. A pointing device, comprising:
- a planar sensing unit, capable of detecting a movement of the point device moving on a planar surface and generating a planar sensing signal accordingly;
an inertial sensing unit, capable of detecting a movement of the point device while it is moving in a free space and thus generating an inertial sensing signal accordingly; and
a controller unit, coupled to the planar sensing unit and the inertial sensing unit for enabling the same to receive and process the planar sensing signal and the inertial sensing signal.
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Abstract
A pointing device is disclosed in the present invention, which comprises a planar sensing unit, an inertial sensing unit and a controller unit. The planar sensing unit is capable of detecting a movement of the point device moving on a planar surface and generating a planar sensing signal accordingly. The inertial sensing unit is capable of detecting a movement of the point device while it is moving in a free space and thus generating an inertial sensing signal accordingly. The controller unit is coupled to the planar sensing unit and the inertial sensing unit for enabling the same to receive and process the planar sensing signal and the inertial sensing signal. In a preferred aspect, the planar sensing unit is capable of detecting and determining whether the pointing device is operating on a surface or in a free space for selectively enabling the pointing device to operate in a mode of two-dimensional detection or in a mode of three-dimensional detection such that users can apply the pointing device freely without being restricted by a surface or a space, and thus not only the usage convenience of the pointing device is enhanced, but also the applications thereof are broadened.
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Citations
24 Claims
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1. A pointing device, comprising:
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a planar sensing unit, capable of detecting a movement of the point device moving on a planar surface and generating a planar sensing signal accordingly; an inertial sensing unit, capable of detecting a movement of the point device while it is moving in a free space and thus generating an inertial sensing signal accordingly; and a controller unit, coupled to the planar sensing unit and the inertial sensing unit for enabling the same to receive and process the planar sensing signal and the inertial sensing signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A pointing device, comprising:
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a planar sensing unit, capable of detecting a movement of the point device moving on a planar surface and generating a planar sensing signal accordingly; a gyroscopic element, capable of detecting and measuring a angular velocity of the pointing device and generating a first sensing signal accordingly; an acceleration sensing part, capable of detecting and measuring an acceleration measured along at least an axis of a set of orthogonal axes of a space and generating a second sensing signal accordingly; and a controller unit, coupled to the planar sensing unit, the gyroscopic element and the acceleration sensing part for enabling the same to receive and process the planar sensing signal, the first sensing signal, and the second sensing signal. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A pointing device, comprising:
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a planar sensing unit, capable of detecting a movement of the point device moving on a planar surface and generating a planar sensing signal accordingly; a first accelerometer, for detecting an acceleration measured along a second axis of a set of orthogonal axes while the pointing device is being held to move in a space defined by the set of orthogonal axes and an inclination signal of the pointing device while the pointing device is being held to rotate about a first axis of the set of orthogonal axes in the space; a second accelerometer, for detecting an acceleration measured along the first axis while the pointing device is being held to move in the space and an inclination signal of the pointing device while the pointing device is being held to rotate about the second axis; and a third accelerometer, for detecting an overturn status of the pointing device and generating a third sensing signal accordingly; and a controller unit, coupled to the planar sensing unit, the first, the second and the third accelerometers for enabling the same to receive and process the planar sensing signal, the first, the second and the third sensing signals. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification