Digital recording and/or reproducing apparatus which rearranges error correction blocks representing video signal and corresponding to data blocks of image represented by video signal

A digital recording apparatus for digitally recording a supplied digital video signal, comprising:

• blocking means for dividing said digital video signal into a plurality of data blocks, each data block corresponding to a block of display screen, said display screen being horizontally and/or vertically divided into N rectangular regions, thus, each of said N rectangular regions has one corresponding set of error correction blocks;
• means for encoding each of said data blocks;
• means for controlling a code amount of said encoding, on the basis of at least one data block, to form fixed length blocks;
• means for encoding said fixed length blocks for error correction, which is to be performed during reproduction, to form error correction blocks, therefore, each error correction block has a corresponding block on said display screen;
• means for recording said error correction blocks on tracks of a recording medium;
• and
• means for rearranging said error correction blocks for each track prior to recording so that, for each set of error correction blocks, said error correction blocks are consecutively recorded and each pair of consecutively recorded error correction blocks have corresponding blocks of said display screen which are adjacent.

A digital recording and reproducing apparatus for digitally recording a supplied digital video signal, comprising:

• blocking means for dividing said digital video signal into a plurality of data blocks, each data block corresponding to a block of display screen, said display screen being horizontally and/or vertically divided into N rectangular regions, thus, each of said N rectangular regions has one corresponding set of error correction blocks;
• means for encoding each of said data blocks;
• means for controlling a code amount of said encoding on the basis of at least one data block, to form fixed length blocks;
• means for encoding said fixed length blocks for error correction, which is to be performed during reproduction, to form error correction blocks, therefore, each error correction block has a corresponding block on said display screen;
• means for recording said error correction blocks on tracks of a recording medium;
• means for rearranging said error correction blocks for each track prior to recording so that, for each set of error correction blocks, said error correction blocks are consecutively recorded and each pair of consecutively recorded error correction blocks have corresponding blocks of said display screen which are adjacent;
• means for detecting, at a changeable speed, said error correction blocks;
• means for rearranging said detected error correction blocks into an original order which was established prior to recording;
• means for reconstructing fixed length blocks, which were formed at the time of recording, by applying an error correction process to said rearranged error correction blocks and thereby correcting an error generated at the time of reproduction;
• means for decoding a digital video signal for each of said reconstructed fixed length blocks;
• and
• means for restoring the arrangement of said digital video signal, which was established at the time of recording, based on said decoded digital video signal for each of said reconstructed fixed length blocks.

A digital recording apparatus for digitally recording a supplied digital video signal, comprising:

• blocking means for dividing said digital video signal into a plurality of data blocks, each data block corresponding to a block of display screen, said display screen being horizontally and/or vertically divided into N rectangular regions, thus, each of said N rectangular regions has one corresponding set of error correction blocks, N being an integer greater than one;
• means for encoding each of said data blocks;
• means for controlling a code amount of said encoding, on the basis of at least one data block, to form fixed length blocks;
• means for encoding said fixed length blocks for error correction, which is to be performed during reproduction, to form error correction blocks, therefore, each error correction block has a corresponding block on said display screen;
• means for recording said error correction blocks on tracks of a recording medium;
• and
• means for rearranging said error correction blocks for each track prior to recording so that, for each set of error correction blocks, said error correction blocks are consecutively recorded.

A digital recording and reproducing apparatus for digitally recording a supplied digital video signal, comprising:

• blocking means for dividing said digital video signal into a plurality of data blocks, each data block corresponding to a block of display screen, said display screen being horizontally and/or vertically divided into N rectangular regions, thus, each of said N rectangular regions has one corresponding set of error correction blocks, N being an integer greater than one;
• means for encoding each of said data blocks;
• means for controlling a code amount of said encoding, on the basis of at least one data block, to form fixed length blocks;
• means for encoding said fixed length blocks for error correction, which is to be performed during reproduction, to form error correction blocks, therefore, each error correction block has a corresponding block on said display screen;
• means for recording said error correction blocks on tracks of a recording medium;
• means for rearranging said error correction blocks for each track prior to recording so that, for each set of error correction blocks, said error correction blocks are consecutively recorded;
• means for detecting, at a changeable speed, said error correction blocks;
• means for rearranging said detected error correction blocks into an original order which was established prior to recording;
• means for reconstructing fixed length blocks, which were formed at the time of recording, by applying an error correction process to said rearranged error correction blocks and thereby correcting an error generated at the time of reproduction;
• means for decoding a digital video signal for each of said reconstructed fixed length blocks;
• and
• means for restoring the arrangement of said digital video signal, which was established at the time of recording, based on said decoded digital video signal for each of said reconstructed fixed length blocks.

A digital reproducing apparatus for digitally reproducing a recorded digital video signal, comprising:

• means for detecting, at a changeable speed, error correction blocks recorded on tracks of a recording medium, each of said error correction blocks corresponding to one of a plurality of blocks which constitute an image on a display screen, said display screen being divided horizontally and/or vertically into N rectangular regions where N is an integer greater than one, and said error correction blocks being divided into N sets, each of said N sets corresponding to one of said N rectangular regions, and, error correction blocks in each set for each track being consecutively recorded;
• means for rearranging said detected error correction blocks into an original order which was established prior to recording;
• means for reconstructing fixed length blocks, which were formed at the time of recording, by applying an error correction process to said rearranged error correction blocks and thereby correcting an error generated at the time of reproduction;
• means for decoding a digital video signal for each of said reconstructed fixed length blocks;
• and
• means for restoring the arrangement of said digital video signal, which was established at the time of recording, based on said decoded digital video signal for each of said reconstructed fixed length blocks.

A digital recording apparatus for digitally recording a supplied digital video signal, comprising:

• blocking means for dividing said digital video signal into a plurality of data blocks, each data block corresponding to a block on a display screen, said display screen being horizontally and/or vertically divided into N rectangular regions;
• means for encoding the plurality of data blocks;
• means for controlling a code amount of said encoding to form fixed length blocks;
• means for recording the encoded data blocks of N regions respectively on N tracks of a recording medium;
• and
• means for rearranging said encoded data blocks in the fixed length blocks prior to recording so that, said encoded data blocks adjacent to each other on said display screen are recorded adjacently on the recording medium.

A digital recording apparatus for digitally recording a supplied digital video signal, comprising:

• blocking means for forming data blocks each corresponding to a plurality of pixels;
• means for encoding a plurality of data blocks to form fixed length blocks;
• means for rearranging said encoded data blocks in the fixed length blocks, so that said encoded data blocks that are adjacent on a display screen are recordable adjacently on a recorded medium;
• and
• means for recording the rearranged encoded data blocks on tracks of the recording medium, so that said encoded data blocks that are adjacent on said display screen are adjacent on the recording medium, the encoded data blocks for N regions of said display screen being recorded on N respective tracks of the recording medium.