发明名称 |
Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same |
摘要 |
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. |
申请公布号 |
US9084009(B2) |
申请公布日期 |
2015.07.14 |
申请号 |
US201514605544 |
申请日期 |
2015.01.26 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
Kim Jin Pil;Thomas C. Gomer |
分类号 |
H04N7/16;H04N5/445;H04N21/434;H04N21/435;H04N21/84;H04N21/482;H04N21/438;H04N21/2362 |
主分类号 |
H04N7/16 |
代理机构 |
McKenna Long & Aldridge LLP |
代理人 |
McKenna Long & Aldridge LLP |
主权项 |
1. A method of processing a digital broadcasting signal in a digital television receiver, comprising:
demodulating a digital broadcasting signal including program and system information protocol (PSIP) data including a virtual channel table (VCT), and outputting demodulated PSIP data, wherein the VCT includes a predefined data field which is set to zero for an inactive channel, 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 later time from a broadcasting station without local viewer interaction; and processing 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, wherein the VCT further includes a section_number field, wherein the VCT further includes a last_section_number field, wherein the VCT further includes a description_length field, and wherein the VCT further includes an additional_description_length field. |
地址 |
Seoul KR |