Granted Patent B2

US 8,717,637 · App. 13/307,447 · Granted May 6, 2014

Abstract

Claims (15)

1. A method for scanning documents in a document scanner comprising:

transporting documents from an input tray of the document scanner to a document detection sensor located inside the document scanner;

detecting documents with the document detection sensor;

capturing image data for a document with an image capture device located along the document transport path inside the document scanner;

determining characteristics of the document based on the image data with an image processor;

merging the determined characteristics of the document with document detection sensor data; and

excluding document detection sensor data which conflicts with the image data.

2. The method of claim 1 wherein at least one characteristic is document length or width or position.

3. The method of claim 1 wherein at least one of the characteristics is holes in the document or labels on the document.

4. The method of claim 1 wherein the image capture device is a linear sensor.

5. The method of claim 1 wherein the document detection sensor is an ultrasonic sensor.

6. The method of claim 1 comprising:

synchronizing incoming document detection data with incoming image data in an image buffer.

7. The method of claim 1 wherein the image capture device is a color sensor.

8. The method of claim 7 wherein the documents are processed according to color.

Assignments (12)