Optical pointing device and method for detecting an optical pointing
First Claim
1. An optical pointing device for detecting a finger'"'"'s direction of a user, comprising:
- a cover, comprising a press portion and a side wall, the press portion having a first surface and a second surface opposite the first surface, the side wall extending downward from the periphery of the second surface, and the press portion and the side wall are two separate elements;
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, and the side wall is deformable according to a horizontal movement of the press portion.
2 Assignments
0 Petitions
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.
4 Citations
13 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 and a side wall, the press portion having a first surface and a second surface opposite the first surface, the side wall extending downward from the periphery of the second surface, and the press portion and the side wall are two separate elements; 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, and the side wall is deformable according to a horizontal movement of the press portion. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. 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; wherein the cover comprises a side wall, the side wall extends downward from the periphery of the second surface, and the side wall is a flexible side wall, and the side wall is deformable according to a horizontal movement of the press portion. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification