Image noise compensating system, and auto clean machine
AssigneePixart Imaging Inc.
InventorGuo-Zhen Wang
Life of this patent
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Abstract
An image noise compensating system, comprising: a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image noise compensating system is larger than a distance threshold or not; an image sensor, comprising at least one image sensing unit, wherein the image sensor combines a plurality of image sensing units to sense images when the distance is smaller than the distance threshold and senses images without combining the image sensing units when the distance is larger than the distance threshold; and an noise compensating circuit, configured to compensate image noises according to the images sensed by the image sensor.
Claims20
An image noise compensating system, comprising:
- a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image noise compensating system is larger than a distance threshold or not;
- a first image sensing region, comprising at least one first image sensing unit;
- a second image sensing region, comprising at least one second image sensing unit, wherein a size of the first image sensing unit is larger than a size of the second image sensing unit;
- and
- an noise compensating circuit, configured to compensate image noises;
- wherein the noise compensating circuit uses images sensed by the first image sensing region to compensate the image noises when the distance is smaller than the distance threshold, and uses images sensed by the second image sensing region to compensate the image noises when the distance is larger than the distance threshold.
An image noise compensating system, comprising:
- a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image noise compensating system is larger than a distance threshold or not;
- an image sensor, comprising at least one image sensing unit, wherein the image sensor combines a plurality of image sensing units to sense images when the distance is smaller than the distance threshold and senses images without combining the image sensing units when the distance is larger than the distance threshold;
- and
- an noise compensating circuit, configured to compensate image noises according to the images sensed by the image sensor.
An auto clean machine, comprising:
- a distance determining device, configured to determine whether a distance between an object and an electronic device comprising the image noise compensating system is larger than a distance threshold or not;
- an image sensor, comprising at least one image sensing unit, wherein the image sensor combines a plurality of image sensing units to sense images when the distance is smaller than the distance threshold and senses images without combining the image sensing units when the distance is larger than the distance threshold;
- an noise compensating circuit, configured to compensate image noises according to the images sensed by the image sensor;
- and
- a control circuit, configured to calculate a location of the auto clean machine according to the images compensated by the noise compensating circuit.
Dependencies are inferred from the claim text.