发明名称 |
Internet protocol (IP) television |
摘要 |
Embodiments are directed to systems and methods for delivering broadcast television (TV) using an Internet Protocol (IP) network. The IPTV system and methods use real-time routing servers to unicast and/or multicast of broadcast television programs. The IPTV system and methods may enable advertisers to insert local commercials into national or international television broadcasts. The IPTV system and methods offer network-based time-shifting of broadcast television programming rather than personal video recorder (PVR)-based time-shifting. The IPTV system and methods may provide scalable video on-demand (VOD) by multicasting video content and dynamically determining whether to speed up or slow down a bit stream to catch up to or wait for the previous or next multicast of the video content. The IPTV system and methods also may enables interactive television programming whereby a viewer may be permitted to exchange video with a television program and have that video displayed.
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申请公布号 |
US2007130601(A1) |
申请公布日期 |
2007.06.07 |
申请号 |
US20050294186 |
申请日期 |
2005.12.05 |
申请人 |
LI WEIPING;HWANG CHERNG-DAW |
发明人 |
LI WEIPING;HWANG CHERNG-DAW |
分类号 |
H04N7/173 |
主分类号 |
H04N7/173 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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