发明名称 |
Digital data transmission system |
摘要 |
In a digital data transmission system of the present invention, the total transmission rate which changes with the passage of time in a plurality of video/audio signals multiplexed with a plurality of digital data on a transmission path is monitored without allocation of individual transmission rates to the plurality of video/audio signals so that encoders are controlled only when the total transmission rate exceeds the maximum transmission rate. Further, the plurality of digital data are transmitted within a range of the residual transmission rate obtained by subtracting the total transmission rate of the plurality of video/audio signals from the maximum transmission rate in the transmission path, whereby real-time transmission of video/audio signals and transmission of digital data can be made consistent with each other on one transmission path without reduction in video/audio quality of the transmitted video/audio signals.
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申请公布号 |
US5959677(A) |
申请公布日期 |
1999.09.28 |
申请号 |
US19970989783 |
申请日期 |
1997.12.12 |
申请人 |
HITACHI, LTD. |
发明人 |
DATE, AKIRA;KINOSHITA, TAIZO |
分类号 |
H04N7/08;H04H20/00;H04H20/74;H04L12/56;H04N7/081;H04N7/24;H04N7/50;H04N7/52;H04N7/58;H04Q3/00;(IPC1-7):H04N7/04 |
主分类号 |
H04N7/08 |
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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