Hybrid pointing device
First Claim
1. A hybrid pointing device configured to be operated by a user on a working surface, the hybrid pointing device comprising:
- an operation field located only at a front portion of a top surface of the hybrid pointing device and configured to accommodate a plurality of fingers of the user moving thereon for activating a clicking operation, a scrolling operation and a multi-touch operation;
a first module configured to sense a movement of the hybrid pointing device relative to the working surface;
a second module includingat least one light source configured to emit light, andat least one image sensor disposed on a plane and configured to optically cover at least the operation field and to capture an image containing at least one light spot caused by the plurality of fingers in the operation field, the plurality of fingers reflecting the light emitted by the at least one light source;
a wall extending between a rear end of the operation field and the plane, the wall configured to block a part of a field of view of the at least one image sensor in such a manner that the field of view optically covers the front portion of the top surface of the hybrid pointing device without optically covering a rear portion of the top surface of the hybrid pointing device; and
a processor configured to identify gestures of the plurality of fingers associated with the clicking operation, the scrolling operation and the multi-touch operation according to position information of the at least one light spot on the image.
1 Assignment
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Accused Products
Abstract
The present invention discloses a hybrid pointing device including an optical navigation module and a pointing module. The optical navigation module is configured to replace the conventional buttons of a convention pointing device, such as an optical mouse or a trackball mouse. The optical navigation module is configured to sense gestures of at least one object operated by a user to activate commands associated with particular programs running on the host. Since the optical navigation module is only configured to sense gestures of the object but not the movement of the hybrid pointing device relative to a surface, the resolution thereof is aimed to be sufficiently high enough for sensing gestures and no need to be relatively high.
10 Citations
13 Claims
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1. A hybrid pointing device configured to be operated by a user on a working surface, the hybrid pointing device comprising:
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an operation field located only at a front portion of a top surface of the hybrid pointing device and configured to accommodate a plurality of fingers of the user moving thereon for activating a clicking operation, a scrolling operation and a multi-touch operation; a first module configured to sense a movement of the hybrid pointing device relative to the working surface; a second module including at least one light source configured to emit light, and at least one image sensor disposed on a plane and configured to optically cover at least the operation field and to capture an image containing at least one light spot caused by the plurality of fingers in the operation field, the plurality of fingers reflecting the light emitted by the at least one light source; a wall extending between a rear end of the operation field and the plane, the wall configured to block a part of a field of view of the at least one image sensor in such a manner that the field of view optically covers the front portion of the top surface of the hybrid pointing device without optically covering a rear portion of the top surface of the hybrid pointing device; and a processor configured to identify gestures of the plurality of fingers associated with the clicking operation, the scrolling operation and the multi-touch operation according to position information of the at least one light spot on the image. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A hybrid pointing device configured to be operated by a user on a working surface, the hybrid pointing device comprising:
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an operation field located only at a front portion of a top surface of the hybrid pointing device and configured to accommodate a plurality of fingers of the user moving thereon for activating a clicking operation, a scrolling operation and a multi-touch operation; a first module configured to sense a movement of the hybrid pointing device relative to the working surface; a second module including an image sensor disposed on a plane and configured to optically cover at least the operation field and to capture an image containing at least one shadow caused by the plurality of fingers in the operation field, the plurality of fingers blocking ambient light directly from outside of the hybrid pointing device; a wall extending between a rear end of the operation field and the plane, the wall configured to block a part of a field of view of the image sensor in such a manner that the field of view optically covers the front portion of the top surface of the hybrid pointing device without optically covering a rear portion of the top surface of the hybrid pointing device; and a processor configured to identify gestures of the plurality of fingers associated with the clicking operation, the scrolling operation and the multi-touch operation according to a position variation of the at least one shadow on the image. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification