The present invention relates to an encoded data decoding apparatus and an image audio multiplexed data decoding apparatus using the encoded data decoding apparatus.

摘要

The present invention is a circuit for sequentially receiving a series of data frames, each of the data frames including a plurality of multiplexed band data separated into a plurality of predetermined frequency bands, Includes processing data used for coding the encoded information data and the encoded information data belonging to one of the corresponding frequency bands and processing each of the data frames for separating the encoded information data from the processed data; Circuit means for decoding the encoded information data by using processing data separated from information in each of the frequency bands; And one of the following circuits, that is, one of them decides whether or not to decode each of the data frames, a level of the coded information data belonging to one or more frequency bands separated from the frequency band included in the data frame And a circuit for selecting only a data frame as a circuit for selecting a data frame from a series of data frames. And an image data multiplexed data decoding apparatus using the encoded data decoding apparatus.