An image display system which improves the ease of use provided to an operator when an alteration is detected in image data that is to be displayed. An electronic watermark detecting section and forwarding request section are appended to a personal computer connected to a disk cache storing image data....http://www.google.de/patents/US7197694?utm_source=gb-gplus-sharePatent US7197694 - Image display system, image registration terminal device and image reading terminal device used in the image display system
