Multi-resolution charge-coupled device (CCD) sensing apparatus
AssigneeAvision Inc.
InventorMichael Chen
Life of this patent
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Abstract
A multi-resolution charge-coupled device (CCD) sensing apparatus is provided. The multi-resolution CCD sensing apparatus includes a photo sensor set, a shift gate, and several CCD shift registers. The shift gate includes several switches for receiving the charge signal from the photo sensor set and the switches. The switches output the charge signals to the corresponding CCD components with respect to different resolutions for the acquisition of the scanning image with different resolutions. It can achieve the economy of size, low cost by using the multi-resolution CCD sensing apparatus according to the invention and therefore speeds up scanning at low resolution.
Claims16
A multi-resolution charge-coupled device (CCD) sensing apparatus, comprising:
- a photo sensor set having a plurality of photo sensing components for receiving a light signal and generating a plurality of corresponding charge signals accordingly;
- a shift gate having a plurality of switches for receiving the charge signals from the photo sensing components;
- and
- a first CCD shift register having M CCD components and a second CCD shift register having N CCD components, the M CCD components being coupled with at least parts of the switches and the N CCD components being coupled with at least parts of the switches, wherein M and N are positive integers and M is larger than N, value M corresponds to scanning at a first resolution, and the value N corresponds to scanning at a second resolution;
- wherein the switches selectively output the charge signals to the M CCD components while scanning at the first resolution, and the switches selectively output the charge signals to the N CCD components while scanning at the second resolution.
A multi-resolution charge-coupled device (CCD) sensing apparatus, comprising:
- a photo sensor set having a plurality of photo sensing components for receiving a light signal and generating a plurality of corresponding charge signals accordingly;
- and
- a first CCD shift register having M CCD components and a second CCD shift register having N CCD components, the M CCD components being coupled with at least parts of the photo sensing components and the N CCD components being coupled with at least parts of the photo sensing components, wherein M and N are positive integers and M is larger than N, value M corresponds to scanning at a first resolution, and value N corresponds to scanning at a second resolution;
- wherein the photo sensing components output the charge signals to the M CCD components while scanning at the first resolution, and the photo sensing components output the charge signals to the N CCD components while scanning at the second resolution.
Dependencies are inferred from the claim text.