公开(公告)号：EP0168834B2

公开(公告)日：1996-11-06

申请号：EP85108996.1

申请日：1985-07-18

申请人： HITACHI, LTD.

发明人： Yoshioka, Atsushi ,  Furuhata, Takashi ,  Owashi, Hitoaki ,  Mouri, Katsuo

IPC分类号： H04N5/92

CPC分类号： H04N9/896 ,  H04N5/78266 ,  H04N5/92

公开(公告)号：EP0168834A2

公开(公告)日：1986-01-22

申请号：EP85108996.1

申请日：1985-07-18

申请人： HITACHI, LTD.

发明人： Yoshioka, Atsushi ,  Furuhata, Takashi ,  Owashi, Hitoaki ,  Mouri, Katsuo

IPC分类号： H04N5/92

CPC分类号： H04N9/896 ,  H04N5/78266 ,  H04N5/92

摘要： In a rotary magnetic head helical scan type video tape recorder using a segment recording system, a video signal of one vertical scanning period is divided into n video signal blocks (V), where n is an integer equal to or larger than 2, and a redundant period (V-BLK) having a predetermined period is inserted into the video signal blocks (V) in a recording mode. Each of the video signal blocks (V) has a number of horizontal scanning lines equal or smaller than N/n, where N is the number of the horizontal scanning lines in a field of the video signal. In a reproducing mode, a time axis error of reproduced series of the video signal blocks (V) is corrected at least during the redundant periods (V-BLK). Then, the corrected blocks are converted into the original video signal.

公开(公告)号：EP0168834B1

公开(公告)日：1991-10-16

申请号：EP85108996.1

申请日：1985-07-18

申请人： HITACHI, LTD.

发明人： Yoshioka, Atsushi ,  Furuhata, Takashi ,  Owashi, Hitoaki ,  Mouri, Katsuo

IPC分类号： H04N5/92

CPC分类号： H04N9/896 ,  H04N5/78266 ,  H04N5/92

公开(公告)号：EP0168834A3

公开(公告)日：1988-05-18

申请号：EP85108996

申请日：1985-07-18

申请人： HITACHI, LTD.

发明人： Yoshioka, Atsushi ,  Furuhata, Takashi ,  Owashi, Hitoaki ,  Mouri, Katsuo

IPC分类号： H04N05/92

CPC分类号： H04N9/896 ,  H04N5/78266 ,  H04N5/92

摘要： In a rotary magnetic head helical scan type video tape recorder using a segment recording system, a video signal of one vertical scanning period is divided into n video signal blocks (V), where n is an integer equal to or larger than 2, and a redundant period (V-BLK) having a predetermined period is inserted into the video signal blocks (V) in a recording mode. Each of the video signal blocks (V) has a number of horizontal scanning lines equal or smaller than N/n, where N is the number of the horizontal scanning lines in a field of the video signal. In a reproducing mode, a time axis error of reproduced series of the video signal blocks (V) is corrected at least during the redundant periods (V-BLK). Then, the corrected blocks are converted into the original video signal.