| 摘要 |
<p>The transmission of television signals is made using systems for reducing the redundancy and for this aim they generally use codes having a variable length. For allowing the fulfilment of encoders that work at the required high speeds or that have a modular structure, that can be adapted to different applications, it is necessary to process the information on many parallel paths and more generally, in addition to one or more processing paths of the video signal, other sources of signals to be transmitted are used, for example the audio signal and the data that describe the encoder state and that are transmitted by the transmission line. The structure of the proposed processing system, in addition to the organization of the data in packages having a fixed format, allows to assign a structure to information generated by the various paths with different and time-variable speed and to transmit the same information in an efficient manner, using a multiplexing frame that can be easily suited to the different application fields.</p> |
