Patent ID: 8619763
Filing Date: 2013-12-31
Classification: G11B,H04H,H04N

Abstract:
1. A non-transitory information recording medium having recorded thereon interactive signaling information of a digital broadcast, the interactive signaling information comprising: a first region which stores information on a time when the interactive signaling information occurs; a second region which stores a type of the interactive signaling information and identification information; and a third region which stores signaling items of the interactive signaling information, wherein an apparatus for reproducing an interactive service of the digital broadcast uses the interactive signaling information stored on the information recording medium to process a corresponding interactive event at the time the interactive signaling information occurs, wherein the first region, the second region, and the third region are separate regions, and wherein the third region comprises: only information on a signaling item that has changed, which is determined by comparing the interactive signaling information with the type of interactive signaling information that previously occurred, and identification information on the interactive signaling information that previously occurred.