DUAL MODE OPTICAL NAVIGATION DEVICE AND MODE SWITCHING METHOD THEREOF
First Claim
1. A dual mode optical navigation device, operated in a first mode or a second mode on a working surface, the dual mode optical navigation device comprising:
- a first bottom surface;
a second bottom surface having an included angle with the first bottom surface;
a light source configured to illuminate the working surface through the first bottom surface;
an image sensor configured to capture an image frame of the working surface through the first bottom surface; and
a process unit configured to calculate an image feature of the image frame to accordingly enter the first mode or the second mode,wherein the first bottom surface is configured to be contacted with the working surface in the first mode and the second bottom surface is configured to be contacted with the working surface in the second mode.
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Accused Products
Abstract
There is provided a mode switching method of a dual mode optical navigation device. The dual mode optical navigation device is configured to be operated on a working surface and has a first bottom surface and a second bottom surface having an included angle with the first bottom surface. The mode switching method includes: determining whether the first bottom surface or the second bottom surface contacts with the working surface; switching the dual mode optical navigation device to a first mode when identifying that the first bottom surface contacts with the working surface; and switching the dual mode optical navigation device to a second mode when identifying that the second bottom surface contacts with the working surface.
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Citations
20 Claims
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1. A dual mode optical navigation device, operated in a first mode or a second mode on a working surface, the dual mode optical navigation device comprising:
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a first bottom surface; a second bottom surface having an included angle with the first bottom surface; a light source configured to illuminate the working surface through the first bottom surface; an image sensor configured to capture an image frame of the working surface through the first bottom surface; and a process unit configured to calculate an image feature of the image frame to accordingly enter the first mode or the second mode, wherein the first bottom surface is configured to be contacted with the working surface in the first mode and the second bottom surface is configured to be contacted with the working surface in the second mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A dual mode optical navigation device, operated in a first mode or a second mode on a working surface, the dual mode optical navigation device comprising:
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a first bottom surface; a second bottom surface having an included angle with the first bottom surface, wherein the first bottom surface is configured to be contacted with the working surface in the first mode and the second bottom surface is configured to be contacted with the working surface in the second mode; an actuator configured to generate a detect signal when one of the first bottom surface and the second bottom surface in contact with the working surface changes from the first bottom surface to the second bottom surface or from the second bottom surface to the first bottom surface; and a process unit configured to enter the first mode or the second mode according to the detect signal. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A mode switching method of a dual mode optical navigation device, the dual mode optical navigation device being operated on a working surface and having a first bottom surface and a second bottom surface with an included angle therebetween, the mode switching method comprising:
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determining, using a process unit, whether the first bottom surface or the second bottom surface contacts with the working surface; switching to a first mode when identifying that the first bottom surface contacts with the working surface and capturing, using an image sensor, image frames of the working surface through the first bottom surface; and switching to a second mode when identifying that the second bottom surface contacts with the working surface and capturing, using the image sensor, image frames of the working surface through the first bottom surface. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification