Patent ID: 7389152

Claim:
In a document image scanner having (a) a transporter for conveying physical documents in spaced serial relation along a working distance; (b) an optical camera having a field of view along the working distance, for sensing optically differentiated information areas on each physical document as the physical document is conveyed; (c) an optical image processing system operatively associated with the camera, for producing a virtual optical image data file from the differentiated information areas sensed by the camera on the physical document; (d) sensors for determining the position of the conveyed physical document relative to the camera field of view; (e) a plurality of electro-mechanical devices for actuating the transporter; and (f) a data interface controller for receiving data from the sensors and controlling the electro-mechanical devices to transport the physical document; the improvement comprising: a communications link between the data interface controller and the image processing system for synchronization by the data interface controller, of the physical document as conveyed and the virtual document image captured by the image processing system.