Digital video signal recording and reproducing apparatus

A method of seaming digital first and second video data sections recorded onto a video recording medium, said first and second video data sections each including at least one video data portion having a pair of video data portion edges, said method comprising the steps of:

• a) dividing each video data portion into a peripheral data portion and a central data portion, said central data portion including more data than said peripheral data portion, said peripheral data portion representing video data displayed in a peripheral area of a display screen, and said central data portion representing video data displayed in a central area of said display screen;
• and
• b) storing each divided video data portion on a plurality of consecutive tracks including a pair of edge tracks on the video recording medium, said central data portion for each divided video data portion being stored continuously so that said central data portion is uninterrupted by said peripheral data portion, said step b) including,
• i) recording said first video data section on said video recording medium, and
• ii) recording said second video data section on said video recording medium with the edges of said video data portions of said second video data section being in substantial alignment with the edges of said video data portions of said first video data section at a seam between said first and second video data sections.

An apparatus for seaming digital first and second video data sections recorded onto a video recording medium, said first and second video data sections each including at least one video data portion having a pair of video data portion edges, said apparatus comprising:

• a data divider dividing each video data portion into a peripheral data portion and a central data portion, said central data portion including more data than said peripheral data portion, said peripheral data portion representing video data displayed in a peripheral area of a display screen, and said central data portion representing video data displayed in a central area of said display screen;
• and
• a recording circuit storing each divided video data portion on a plurality of consecutive tracks including a pair of edge tracks on the video recording medium, said central data portion for each divided video data portion being stored continuously so that said central data portion is uninterrupted by said peripheral data portion;
• said recording circuit recording said first video data section on said video recording medium, and recording said second video data section on said video recording medium with the edges of said video data portions of said second video data section being in substantial alignment with the edges of said video data portions of said first video data section at a seam between said first and second video data sections.

A digital video signal recording and reproducing apparatus which records video signals onto S tracks of a recording medium, where S is greater than or equal to three, said apparatus comprising:

• data dividing means for dividing one frame or one field of said video signals into n blocks;
• data amount controlling means for forming block groups of a fixed amount of data from said n blocks by extracting a plurality of said n blocks in forming each block group;
• data extracting means for extracting (2n/S) of said n blocks from one of said block groups, said extracted blocks representing one of an upper and/or lower peripheral portion and a right and/or left peripheral portion of a display screen;
• halving means for dividing said extracted (2n/S) blocks into two recording block groups of (n/S) blocks;
• rearranging means for rearranging data in each of said recording block groups in a fixed order;
• and
• recording format generating means for controlling said recording of said video signal so that said rearranged recording block groups are recorded on a first track and an S-th track of said S tracks, and for controlling said recording of said video signals so that data in a remaining (n-2n/S) blocks of said n blocks not extracted by said data extracting means are continuously recorded from a second track to an (S-1)-th track of said S tracks after rearranging said remaining (n-2n/s) blocks in a fixed order.

A method of recording and reproducing digital video signals onto S tracks of a recording medium, where S is greater than or equal to three, said method comprising:

• a) dividing one frame or one field of said video signals into n blocks;
• b) forming block groups of a fixed amount of data from said n blocks by extracting a plurality of said n blocks in forming each block group;
• c) extracting (2n/S) of said n blocks from one of said block groups, said extracted blocks representing one of an upper and/or a lower peripheral portion and a right and/or left peripheral portion of a display screen;
• d) dividing said extracted (2n/S) blocks into two recording block groups of (n/S) blocks;
• e) rearranging data in each of said recording block groups in a fixed order;
• f) recording said video signal so that said rearranged recording block groups are recorded on a first track and an S-th track of said S tracks, and a remaining (n-2n/S) blocks of said n blocks not extracted by said data extracting means are continuously recorded from a second track to an (S-1)-th track of said S tracks after rearranging said remaining (n-2n/s) blocks in a fixed order.