Patent ID: 6845107
Filing Date: 2005-01-18
Classification: H04N

Abstract:
1. A video data multiplexing device comprising: a plurality of encoding means for encoding program data respectively including video data, outputting resultant encoded streams, generating statistical multiplexing data required for control using statistical multiplexing, and outputting the generated data on the same transmission channels as the encoded streams; multiplexing means for acquiring the encoded streams and the statistical multiplexing data from the respective encoding means via the transmission channels, conducting multiplexing processing on the encoded streams and the statistical multiplexing data at a first rate greater than a data transmission rate on a transmission channel of a subsequent stage, outputting first data including the statistical multiplexing data, conducting multiplexing processing on data obtained by removing the statistical multiplexing data from the data outputted from the respective encoding means, at a second rate equal to a data transmission rate on the transmission channel of the subsequent stage, and outputting second data which does not include the statistical multiplexing data to the transmission channel of the subsequent stage; and encoding control means for acquiring the statistical multiplexing data of the respective encoding means from the first data outputted from the multiplexing means, and conducting control using statistical multiplexing on the respective encoding means on the basis of the statistical multiplexing data.