Television – Bandwidth reduction system – Data rate reduction
Patent
1997-12-12
1999-09-28
Le, Vu
Television
Bandwidth reduction system
Data rate reduction
348385, 370538, H04N 704, H04N 708
Patent
active
059596775
ABSTRACT:
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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Date Akira
Kinoshita Taizo
Hitachi , Ltd.
Le Vu
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