System for carrying out broadcasting control on ATSC (Advanced Television System Committee) signal at television station end
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- WUXI BEIDOUXINGTONG INFORMATION TECH
- Publication Date
- 2013-08-07
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the field of ATSC television broadcasting, in particular to a broadcasting control system of ATSC signals at a television station. Background technique
[0002] There are two main camps in existing digital TV transmission standards, one is the American ATSC standard, and the other is the European DVB standard. Among them, the full English name of ATSC is Advanced Television Systems Committee (Advanced Television Business Advisory Committee). On September 15, 1995, the committee formally passed the ATSC digital TV national standard. ATSC source coding adopts MPEG-2 video compression and AC-3 audio compression; channel coding adopts VSB modulation, and provides two modes: terrestrial broadcast mode (8VSB) and high data rate mode (16VSB). ATSC standards are widely used, especially in North American countries and regions.
[0003] However, due to bandwidth limitations and problems with the digital TV program source itself, probl...