OPTICAL POINTING DEVICE AND DETECTING METHOD THEREOF
First Claim
1. An optical pointing device for detecting a finger'"'"'s direction of a user, comprising:
- a cover, comprising a press portion having a first surface and a second surface opposite the first surface, and a side wall extending downward from the periphery of the second surface;
a light source, projecting a main beam to the press portion of the cover, wherein the main beam then forms a first beam passing through the press portion and a second beam reflected by the second surface; and
a sensor, being adapted to receive the second beam reflected by the second surface, and detect the second beam by an algorithm to output a first displacement position;
wherein the light source and the sensor are covered by the cover, and the side wall is a flexible side wall.
2 Assignments
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Accused Products
Abstract
An optical pointing device for detecting the direction of the user'"'"'s finger is provided. The optical pointing device comprises a cover, a light source and a sensor. The cover comprises a press portion with a first surface and a second surface opposite the first surface, as well as a side wall extending downwards from the periphery of the second surface. The light source projects a main beam onto the press portion of the cover. The main beam then forms a first beam passing through the press portion and a second beam reflected by the second surface. The sensor is adapted to receive the second beam reflected by the second surface, and detect the second beam by an algorithm to output the first displacement position. In addition, the light source and the sensor are covered by the cover, while the side wall is a flexible side wall.
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Citations
17 Claims
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1. An optical pointing device for detecting a finger'"'"'s direction of a user, comprising:
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a cover, comprising a press portion having a first surface and a second surface opposite the first surface, and a side wall extending downward from the periphery of the second surface; a light source, projecting a main beam to the press portion of the cover, wherein the main beam then forms a first beam passing through the press portion and a second beam reflected by the second surface; and a sensor, being adapted to receive the second beam reflected by the second surface, and detect the second beam by an algorithm to output a first displacement position; wherein the light source and the sensor are covered by the cover, and the side wall is a flexible side wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for detecting an optical pointing, which is utilized for detecting a finger'"'"'s direction of a user, comprising the following steps:
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(a) providing a light source and a sensor; (b) providing a cover covering the light source and the sensor; (c) projecting a main beam to a press portion of the cover by the light source, and making the main beam form a first beam passing through the press portion and a second beam reflected by a second surface of the press portion; (d) receiving, by the sensor, the second beam reflected by the second surface of the press portion; and (e) detecting the second beam by an algorithm to output a first displacement position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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Specification