Back to results
US 8,555,307 B2Granted
Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same
AssigneeLG Electronics Inc.
InventorsJin Pil Kim, C. Gomer Thomas
Life of this patent
Estimating the term…
Abstract
A virtual channel table for broadcasting protocol and a method for broadcasting by using the virtual channel table includes identification information identifying and permitting discrimination of active and inactive channels contained in the virtual channel table. At a receiver, the virtual channel table transmitted from the transmitting side is parsed, thereby determining whether the current received channel is an active or inactive channel.
Claims5
A digital television receiver comprising:
- a tuner to receive a digital broadcasting signal including program and system information protocol (PSIP) data that includes a virtual channel table (VCT), event information table (EIT), system time table (STT), rating region table (RRT), and master guide table (MGT), the VCT including a service_type field, a source_id field, a descriptors_length field, an extended channel name descriptor, and a time-shifted service descriptor, wherein for an inactive channel a service location descriptor is not present in the VCT, wherein the inactive channel is a channel that is not presently carrying a broadcast program;
- however, the same inactive channel is scheduled to carry a broadcast program at a predetermined later time from a broadcasting station without local viewer interaction;
- and
- a display processor to process display of the corresponding virtual channel, wherein when the virtual channel is currently inactive, the receiver is capable of skipping over the virtual channel while a user is surfing.
1 more element
Dependencies are inferred from the claim text.