US 5,309,450 A · Error correction coding method and apparatus for digital image information

Abstract

An error correction coding method and apparatus which can correct errors generated during the transmission or the storage, or the receiving or the reproducing of a digital image. The error correction coding method according to the present invention comprises the steps of: dividing one image into blocks to prevent the deterioration of the quality of a screen by preventing the generation of burst errors in a header during the transmitting or storing of the image information in the form of digital signals; compressing and coding each divided block into a block code having a header and video information; separating and arranging the compressed and coded header and video information so that successive headers do not overlap; and adding parity data into the separated and arranged header and video information. The apparatus for carrying out the error correction coding method of the present invention comprises an image divider, a data compressor, a parity data insert portion, and a data interleave portion. The data interleave portion comprises a demultiplexer, first and second memories, first and second counters, and first and second multiplexers.

Claims8

Dependent claims

An error correction coding method for a block code interleaving apparatus comprising the steps of:

dividing an image of sequential image information into blocks, each of said blocks being arranged in a sequence substantially corresponding to an arrangement order of said sequential image information;
compressing and coding said blocks into block codes on the basis of the sequence of said blocks, each block code having header information and video information arranged in a predetermined order;
interleaving the block codes so that respective header information of a first block code and respective respective information of a subsequent block code are not vertically aligned, and so that respective video information of the first block code and the respective video information of the subsequent block code are also not vertically aligned;
and
adding parity data to the interleaved block codes.

2 more elements

An error correction coding apparatus in an image processing apparatus for transmitting or storing image information in the form of a digital signal, comprising:

an image divider for receiving digital image signals for a screen, for dividing the received signal into blocks of digital image signals, and for then outputting the blocks;
data compressing means for compressing and coding the blocks from the image divider into block codes, each block code comprising header information and video information arranged in a predetermined order;
parity data insert means for vertically grouping the block codes from said data compressing means to generate parity data therefor;
and
data interleave means, coupled between said data compressing means and said parity data insert means, for arranging first ones of said block codes on the basis of said predetermined order, and arranging respective subsequent ones of said block codes in accordance with a grouping order which is different from said predetermined order such that the position of video and header information included there is reversed said data interleave means transmitting the arranged header and video information to said parity data insert means.

2 more elements

Dependencies are inferred from the claim text.

Error correction coding method and apparatus for digital image information

Life of this patent

Error correction coding method and apparatus for digital image information

Life of this patent

Abstract

Claims8