Patent ID: 8112775
Filing Date: 2012-02-07
Classification: H04H,H04L,H04N

Abstract:
1. A method of providing a Virtual Channel Description in a Service Discovery Process for providing a virtual channel map to an Internet Protocol TV (IPTV) receiver, the method comprising: providing a Virtual Channel Map through a network, wherein the Virtual Channel Map includes service provider identification information identifying a service provider for virtual channels in the Virtual Channel Map and virtual channel details location information indicating a location of a Virtual Channel Details Record containing Virtual Channel Details of the virtual channels in the Virtual Channel Map; and providing the Virtual Channel Details Record, which includes the Virtual Channel Details of the virtual channels in the Virtual Channel Map, wherein the Virtual Channel Details includes description of a service to acquire a content for a virtual channel, and the virtual channel details location information further includes override location information of at least one virtual channel, the Virtual Channel Details Record of which is pointed by a location different from a default location included in the virtual channel details location information.