Patent ID: 9460486
Filing Date: 2016-10-04
CPC Classification: G06T,H04N

Claim Text:
1. An image display system comprising: a client terminal including: a first storage that stores one or more portions of overall image data, an area parameter decider that decides respective area parameters representing respective positions and sizes of respective display areas of the overall image data for display on the client terminal according to respective request signals of display area movements made by a user of the client terminal, a display image processor that draws images of the display areas by using image data that are defined by the area parameter and outputs the images to a display device, a first link determiner that determines whether one or more of the respective request signals result in the respective display areas to at least partially fall within a switching area within which a link area is located, where the link area defines an area within a source portion among the one or more portions of the overall image data that is linked to another area within a destination portion of the overall image data that is not among the one or more portions of overall image data stored in the first storage of the client terminal, an operation information transmitter that sequentially transmits information, relating to the respective positions and sizes of the respective display areas that at least partially fall within the switching area, to a server, and a data receiver that receives the destination portion of the overall image data from the server for storage in the first storage; and the server including: a second storage that stores at least all portions of the overall image data that are not stored in the first storage of the client terminal, a second link determiner that receives the respective positions and sizes of the respective display areas received from the client terminal and that also determines whether one or more of the respective request signals result in the respective display areas to at least partially fall within the switching area within which the link area is located, and a data transmitter that transmits the destination portion of the overall image data to the client terminal.