Patent ID: 6727886
Filing Date: 2004-04-27
Classification: H04N

Abstract:
A method of operating an interactive image display system, the image-display system comprising an image source device and a user terminal connected to said image source device via a link, the user terminal having a user control input, the method comprising the steps of:(a) receiving an input image signal representing an input image; (b) receiving a user command from the user control input; (c) generating a further image signal, dependent on the user command, the further image signal representing an image part, the further image signal being modifiable based upon said user command; (d) forming a compressed image signal in the image source device, said compressed image signal representing an output image corresponding to the input image with the image part superimposed thereon; and (e) transmitting the compressed image signal from the image source device to the user terminal via the link, said transmission allowing for decompression of the compressed image signal and subsequent display of the output image, both at the user terminal.