Verfahren, Coder und Decoder zur Datenübertragung und/oder -speicherung

摘要

In the data transmission of coded pixel blocks, coefficients can be arranged in blocks having a fixed mean length. Blocks not filled up are filled up with temporarily stored (4, 10) data from other blocks. In order to enable decoding to occur even in the case of interference, each of the blocks can additionally contain an address pointer information item (POI, FL) which points to addresses in a memory (10) from which the separated data components of blocks having a greater length than the mean word length are recovered and used for decoding. Due to the additional address pointer information item, however, a lower data rate is available for the image data, the channel capacity remaining the same, which leads to a reduced image quality in the case of undisturbed decoding. According to the invention, recovery pointer pairs (REC) with full word length are additionally in each case inserted between a fixed number of information data blocks, the other address pointers only comprising the LSBs of the full word length. As a result, additional data can also be injected into the data stream. <IMAGE>