Digital broadcasting system and event message transmission method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 11, 2006
Grant Date -
Aug 9, 2001
app pub date -
Feb 5, 2001
filing date -
Feb 3, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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