Optical mouse apparatus for adjusting exposure of sensed image output and related method thereof
AssigneePixart Imaging Inc.
InventorsChun-Wei Chen, Ching-Lin Chung
Life of this patent
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Abstract
A method used in an optical mouse apparatus includes: generating and emitting a light signal which is emitted to a surface so as to reflect and generate a light reflected signal; generating sensed image(s) according to the light reflected signal wherein the sensed image(s) are used for estimating an offset of the optical mouse apparatus; dynamically adjusting photometric exposure for the sensed image(s) according to a quality parameter, a moving speed, or an output offset number per unit time of the sensed image(s).
Claims25
An optical mouse apparatus, comprising:
- a light source unit, arranged for generating and emitting an optical signal, wherein the optical signal is emitted upon a surface, and then forms an optical reflected signal;
- a sensing unit, arranged for generating a sensed image output according to the optical reflected signal, wherein the sensed image output is utilized for estimating an image displacement of the optical mouse apparatus;
- and
- a processing unit, coupled to the light source unit and the sensing unit, the processing unit arranged for controlling the light source unit to emit the optical signal, and controlling an exposure of the sensed image output to dynamically switch between at least two exposure value ranges according to the sensed image output.
An optical mouse apparatus, comprising:
- a light source unit, arranged for generating and emitting an optical signal, wherein the optical signal is emitted upon a surface, and then forms an optical reflected signal;
- a sensing unit, arranged for generating a sensed image output according to the optical reflected signal, wherein the sensed image output is utilized for estimating an image displacement of the optical mouse apparatus;
- and
- a processing unit, coupled to the light source unit and the sensing unit, the processing unit arranged for controlling the light source unit to emit the optical signal, and controlling an exposure of the sensed image output according to a quality parameter, a moving speed, or a unit time output number.
A method used in an optical mouse apparatus, comprising:
- generating and emitting an optical signal, wherein the optical signal is emitted upon a surface, and then forms an optical reflected signal;
- generating a sensed image output according to the optical reflected signal, wherein the sensed image output is utilized for estimating an image displacement of the optical mouse apparatus;
- and
- controlling an exposure of the sensed image output to dynamically switch between at least two exposure value ranges according to the sensed image output.
A method used in an optical mouse apparatus, comprising:
- generating and emitting an optical signal, wherein the optical signal is emitted upon a surface, and then forms an optical reflected signal;
- generating a sensed image output according to the optical reflected signal, wherein the sensed image output is utilized for estimating an image displacement of the optical mouse apparatus;
- and
- controlling an exposure of the sensed image output according to a quality parameter, a moving speed, or a unit time output number.
Dependencies are inferred from the claim text.