发明名称 |
Digital broadcasting system and event message transmission method |
摘要 |
A digital broadcasting system includes an authoring apparatus and a transmission apparatus. The authoring apparatus generates event information, which defines an event message that should be transmitted immediately after an operator's instruction to transmit the event message is received, and adds the event information to a content. The authoring apparatus then extracts the event information from the content by referring to tag information and transfers the extracted event information to the transmission apparatus. The transmission apparatus stores the event message defined by the event information transferred from the authoring apparatus. According to an operator's instruction to transmit the event message, the transmission apparatus issues the event message, and multiplexes and transmits the issued event message and the content.
|
申请公布号 |
US2001013130(A1) |
申请公布日期 |
2001.08.09 |
申请号 |
US20010777023 |
申请日期 |
2001.02.05 |
申请人 |
SHIMIZU HIDEKAZU;HISHIDA TOSHIHIRO;HIRAI JUNICHI;KAGEMOTO HIDEKI |
发明人 |
SHIMIZU HIDEKAZU;HISHIDA TOSHIHIRO;HIRAI JUNICHI;KAGEMOTO HIDEKI |
分类号 |
H04H60/04;H04H60/06;(IPC1-7):H04N7/173 |
主分类号 |
H04H60/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|