Patent ID: 7634793
Filing Date: 2009-12-15
Classification: G06F,H04N

Abstract:
1. A method for transmitting data for generating a zoomable user interface from an upstream node to a client device in a cable communication network comprising the steps of: selectively identifying data to be transmitted from said upstream node to said client device as either first data or second data, wherein said first data includes information regarding (i) an initial position of a picture displayed by said zoomable user interface in a first scene and (ii) a final position of said picture displayed by said zoomable user interface in a second scene, and said second data includes metadata, which is related to said picture, to be displayed in said second scene but not in said first scene together with a zoomed version of said picture; encoding said first data using MPEG encoding; transmitting said MPEG encoded data via an MPEG data stream to said client device; encoding said second data using ZSD encoding. transmitting said ZSD encoded data using a second data stream to said client device; and generating said zoomable user interface using said first and second data.