发明名称 |
Device for filtering out null packet for MPEG-2 transmission |
摘要 |
Disclosed is a device for filtering out a null packet in a data stream for example an MPEG-2 TS (Transport Stream) to avoid bandwidth waste when it is transmitted to a backbone network. The device includes a plurality of receiving interfaces, a filter unit, and a controller. The receiving interfaces receive parallel data, such as DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) inputs as channel-by-channel MPEG-2 data. The filter unit counts the respective numbers of data packets and non-data packets of the data input from the receiving interfaces and filters a null packet in the data. A network transmission unit transmits the filtered data to a backbone network. The controller calculates a bit rate based on both of the count numbers received from the filter unit.
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申请公布号 |
US2005047341(A1) |
申请公布日期 |
2005.03.03 |
申请号 |
US20040771942 |
申请日期 |
2004.02.04 |
申请人 |
KIM YONG-DEOK;KOH JUN-HO;KIM CHAN-YUL;OH YUN-JE |
发明人 |
KIM YONG-DEOK;KOH JUN-HO;KIM CHAN-YUL;OH YUN-JE |
分类号 |
H04N7/12;H04L12/28;(IPC1-7):H04L12/28 |
主分类号 |
H04N7/12 |
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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