DATA ENCODING AND DECODING

摘要

A data coding apparatus in which a set of ordered data is encoded includes: an entropy encoder encoding the ordered data, wherein each data item is split into respective data subsets that are encoded by first and second encoding systems so that for a predetermined quantity of encoded data generated in respect of a group of data items by the first encoding system, a variable quantity of zero or more data is generated in respect of that group of data by the second encoding system; and an output data stream assembler generating an output data stream from the encoded data, the output data stream including successive packets of a predetermined quantity of data generated by the first encoding system followed, in a data stream order, by the zero or more data generated by the second encoding system in respect of same data items as encoded by the first encoding system.

主权项

1. Data coding apparatus in which a set of ordered data is encoded, comprising:
an entropy encoder configured to encode the ordered data, in which each data item is split into respective subsets of data and the respective subsets are encoded by first and second encoding systems so that for a predetermined quantity of encoded data generated in respect of a group of data items by the first encoding system, a variable quantity of zero or more data is generated in respect of that group of data by the second encoding system; and an output data stream assembler configured to generate an output data stream from the data encoded by the first and second encoding systems, the output data stream comprising successive packets of a predetermined quantity of data generated by the first encoding system followed, in a data stream order, by the zero or more data generated by the second encoding system in respect of the same data items as those encoded by the first encoding system.